PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


Enter a class/subclass code here to get a list of patent titles. Use any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any subclass letters capitalized. Currently Design Patent titles (those in the classes of the form Dxx.yy) are not retreivable.

Enter class/subclass code:


Class Number: 198
 Class Title: CONVEYORS: POWER-DRIVEN

Subclass  Subclass
Number    Title

  300     CONVEYING APPARATUS ENTIRELY SUPPORTED BY MOBILE GROUND ENGAGING
           MEANS
  301     .Condition responsive control means for vehicle or conveyer
  302     .Retractable ground wheel
  303     .Including three relatively movable interconnected wheel or
            track equipped vehicles
  304     .Dirigible vehicle
  305     ..Pulling winch on vehicle
  306     .Ground wheel lockable in transverse or longitudinal position on
            vehicle
  307.1   .Bucket conveyor
  308.1   .Shovel or tine pushable under load
  309     .Support slidable on ground
  310     .Conveyer driven by motion of ground-engaging element
  311     .Including gravity conveyer section or bin with driven conveyer
  312     .Conveyer shiftably mounted on vehicle
  313     ..Contractible or foldable conveyer section
  314     ..Separate conveyers serially arranged on single vehicle
  315     ..Power means for shifting conveyer
  316.1   ...Fluid-actuated ram
  317     ..Horizontally swingable conveyer
  318     ..Vertically swingable conveyer
  319     ...Means for maintaining conveyer-drive motor support in level
              position
  320     ...Winch-operated shifting mechanism
  321     CONVEYER OR ACCESSORY THEREFOR SPECIALIZED TO CONVEY PEOPLE
  322     .With means to control the operation of the section
  323     ..By means responsive to an unsafe operating characteristic of
             the system
  324     .With means to facilitate passenger entry or exit
  325     ..By support having interdigitating members (e.g., comb plate,
             etc.)
  326     .By stairway having steps forming an endless member
  327     ..Having hinged plates forming steps
  328     ..Trained about vertical axis or axes
  329     ..With means allowing tensioning of the endless member
  330     ..With drive means
  331     ...With means synchronizing the operation of the steps and a
              handrail
  332     ..With paired track step levelers
  333     ..With specified step structure
  334     .By support means having a zone of varying speed
  335     .Moving hand-support structure
  336     ..With handrail tensioning means
  337     ..Specific handrail configuration
  338     ..Handrail guard
  339.1   WITH MEANS TO FACILITATE WORKING, TREATING, OR INSPECTING
           CONVEYED LOAD AT A STATION
  340     .Having signalling or load identifying means
  341     .Condition responsive control of conveyer or station apparatus
  343.1   .Load supporting conveyor portion is retarded or stopped
            with load at station without being disconnected from remainderr
            of continuously moving conveyer
  343.2   ..Load supporting conveyor portion is movably secured to
             conveyor drive
  345.1   .Means engaging conveyor or load on a conveyor to align
            load for working
  345.2   ..Means engages conveyor to fix conveyor position relative
             to station
  345.3   ...Means engages a conveyor portion (i.e., pallet) which is
              separable from the conveyor drive to fix the position of said
              conveyor portion
  346     .Static means for supporting load or workman adjacent conveyer
            for operation on load
  346.1   .Means to convey a palleted load back and forth between an
            initial location and the work station
  346.2   .Means to transfer a load back and forth between the
            mainline conveyor and the work station
  346.3   .Conveyor(s) lowers the load to at least one of a plurality
            of fixed work stations
  347.1   CONVEYOR SYSTEM HAVING AUXILIARY SECTION FOR STORING ITEMS
           MOVING BETWEEN SOURCE AND DESINATION
  347.2   .Auxiliary section has the same entrance and exit
  347.3   ..Auxiliary section has a reversibly driven conveyor for
             bidirectional article movement
  347.4   .Plural laterally spaced, same direction auxiliary paths
  348     CONVEYER ARRANGEMENT FOR SELECTING AMONG PLURAL SOURCES OR
           DESTINATIONS
  357     .Condition responsive control means to prevent collision on
            merging conveyors
  358     .Condition responsive control means including sensing condition
            of source or destination
  349     .With selection responsive to means containing or introducing
            changeable operating instructions
  349.1   ..By synchronously moving signal carrier distinct from
             conveyer
  349.2   ...Moving at different velocity than conveyer
  349.3   ....Rotary signal carrier
  349.4   .....Magnetic means on rotary carrier stores code
  349.5   ..Using central memory to store code until article is
             discharged
  349.6   ...Memory stores plural sources or destinations
  349.7   ....Inventory also in memory
  349.8   ....Material detector indexes code
  349.9   .....Plural, longitudinally spaced, material detectors
                index code
  349.95  ....Conveyer detector indexes code
  350     ..By magnetic means
  351     ..By selectively positioned abutment means
  352     ...Having plural abutments arranged in a specific pattern
  353     ...Having support means slidably mounting abutment means
  354     ...Having an abutment support containing a plurality of abutment
              receiving means
  355     ..By repositionable contact or switch actuator
  359     .With gravity-conveying means
  360     ..By movably mounted, load-supporting, gravity section
  361     ...By repositionable idler roll or rollway
  362     .By directing the load to or from a conveying section from or to
            selected sources or destinations
  363     ..By proportioning the feed from multiple sourcess
  364     ..By moving a load directing means along the length of the
             section
  365     ..By discharging from a section including independently movable
             load supporting portions
  366     ..By selecting one of a plurality of supply or discharge paths
  367     ...By material-diverting means placed across the load path
  367.1   ....Material diverted by plural, successive gates
  367.2   ....Plural, manually manipulated gate actuators
  368     ...By a selectively movable stop means
  369     ...By means connecting the system with a normally spaced path
  370     ..By loading or unloading section at selected one of a plurality
             of preestablished locations along the length thereof
  371     ...By reversibly driving the section
  372     ..By shifting the load from the section
  373     CONVEYER FOR CHANGING ATTITUDE OF ITEM RELATIVE TO CONVEYED
           DIRECTION
  374     .By optionally facing successive items according to a
            predetermined recurring cycle
  375     .By actuating item-holder relative to holder-carrying conveyer
  376     ..With holder-actuating means responsive to item-sensing means
  377     ..Holder carried by orbiting conveyer
  378     ...Holder or conveyer moves intermittently (e.g., for "indexing"
              load)
  379     .By gripping item and turning item about fixed axis
  380     .With pressurized fluid causing change in attitude
  381     .With magnetism causing change in attitude
  382     .By conveying randomly faced items and turning items to uniform
            facing
  383     ..Including significantly shaped portion of conveyer cooperating
             with significantly shaped item to face item
  384     ...Including orbiting progression of item-receiving pockets and
              means moving item within pocket
  385     ....By roller/finder to move item and/or fit surface indentation
               on item
  386     .....Roller/finder rotating about plural axes
  387     ....Pockets comprise grooved, transversely disposed rollers
  388     ...Including protruding portion of conveyer entering end of
              slotted or hollow item
  389     ...For shaped item suspended in or by shaped passageway
  390     ...For shaped item fitting outline of shaped passageway
  391     ...Via vibrating bowl having shaped passageway
  392     ...Via rotating means having shaped passageway or exit
  393     ...Including orbiting progression of item-fitting elements
              passing through supply of scrambled items
  394     ..By conveying an item that has a position characteristic and
             rotating the item until it is positioned
  395     ..With control means actuated in response to sensing of
             improperly faced item
  396     ..Including separating item from scrambled supply hopper
  397     ...By orbiting progression of item-receiving pockets passing
              through supply
  398     ..By distinguishing between alternatively faced items and
             conveying uniformly faced items
  399     ...By turning only improperly faced items to uniform facing
  400     ...By partially turning all items to uniform facing and
              direction
  401     .With control means for attitude-changer responsive to sensing
            of itemm
  402     .For inverting successive items
  403     ..By means driven for inverting conveyed items
  404     ...Orbiting conveyer-inverter means
  405     ....Twisted-belt conveyer means
  406     .For changing both the elevation and the posture of successive
            items
  407     ..By plural, sequentially acting conveyers
  408     ..By an orbitally moving conveyer
  409     ..By an oscillating or reciprocating conveyer
  410     .By plural distinct occurrences of turning each successive item
  411     .By conveyer and means driven for turning successive conveyed
            items
  412     ..By means between successive conveyer sections or conveyer
             elements
  413     ...By means which interdigitate with conveyer sections or
              elements
  414     ....By turntable which lifts, turns and lowers item(s)
  415     ..By plural, unequal-speed members simultaneously contacting and
             conveying items
  416     .By member adjacent conveyer for contacting successive conveyed
            items
  417     ..Longitudinally twisted item-bounding passageway
  418     CONVEYER SYSTEM FOR ESTABLISHING AND MOVING A GROUP OF ITEMS
  418.1   .Having items discharged from plural distinct outlets into
            group
  418.2   ..With outlets longitudinally spaced along path of
             progressively formed group
  418.3   ...Superposes items within group
  418.4   ..With vertically aligned outlets discharging in the same
             direction and superposing items
  418.5   .Having plural successive groups discharged by single
            conveyer into larger group
  418.6   .Having conveyer drop grouped items simultaneously onto
            another conveyer
  418.7   .Subdivides continuous item stream into longitudinally
            spaced groups
  418.8   ..By offsetting first or last article
  418.9   ..And imbricates items within group
  419.1   ..By item engaging stop means
  419.2   ..By different speed conveyers
  419.3   ...With spaced dividers on conveyer limiting group size
  426     .By shifting group of items simultaneously from stream conveyer
            to form a group
  427     ..And distributing items of group into plural streams
  428     ..By air blast or suction
  429     ..By reciprocating shifter
  430     ...Having oblique or orbital movement
  431     .By depositing items successively from one conveyer onto group
            conveyer
  432     .By shifting group from row conveyer onto row conveyer
  433     .By shifting group from row conveyer onto stream conveyer
  434     CONVEYER SYSTEM FOR ARRANGING OR REARRANGING STREAM(S) OF ITEMS
  435     .By distributing items onto vertically tiered conveyer/receiver
  436     .By distributing items from one stream into plural streams
  437     ..With control means responsive to sensing means
  438     ..By air blast or suction diverter
  439     ..By magnetic diverter
  440     ..By orbiting progression of item engaging elementss
  441     ...On rotating carrier (e.g., star wheel, etc.)
  442     ..By interposing a guide into path of stream
  443     .By queueing items from quantity source of items into stream(s)
            of items
  444     ..With control means responsive to sensing means
  445     ..Forming plural streams
  446     ...By jiggling items into streams
  447     ...And merging plural streams into one stream
  448     ..Merging plural streams (i.e., source) into one stream
  449     ...By synchronized orbiting progression of item-engaging
              elements
  450     ....On rotating carrier (e.g., star wheel, etc.)
  451     ...By synchronized gate(s) in paths of plural streams
  452     ...By guide means in paths of streams
  453     ..Via throat for restricting flow of massed items
  454     ...With supplementary moving surfaces that form throat
  455     ....Including retro-moving surface
  456     .By laterally or vertically moving successive items in
            longitudinally moving stream
  457     ..To change direction of longitudinally moving stream
  458     ..To respace plural streams laterally
  459     .By longitudinally respacing successive items in stream
  460     ..With space-control means responsive to item-sensing means
  461     ..By successive conveyers having dissimilar speeds
  462     ...To crowd or imbricate items in stream
  463.1   CONVEYOR SYSTEM FOR MOVING A SPECIFIC LOAD AS A SEPARATE
           UNIT
  463.2   .System includes a linear conveyor or portion thereof which
            bodily shifts transversely to move a load in synchronization
            with a transverse, continously operating conveyor section
  463.3   .System includes linear conveyor or portion thereof which
            shifts to lift or lower load before or after linearly conveying
            load relative to adjacent conveyor section
  463.4   .System includes gate means
  463.5   ..Load obstructing gate and means for lifting load over the
             obstruction
  463.6   ..Plural successively operated gate means
  464.1   .System includes control means responsive to sensing means
  464.2   ..Responsive to load presence or obsence
  464.3   ...Responsive to condition of at least one conveyor
  464.4   ..Responsive to undesired condition of load
  465.1   .System includes a load supported by a conveyor portion
            which is separable from the conveyor drive
  465.2   ..Wherein the conveyor portion moves in a closed path in
             the horizontal plane only
  465.3   ..Wherein the conveyor portion is supported and driven
             adjacent its opposite sides by horizontally spaced drives
  465.4   ..Wherein the conveyor portion supports the load below the
             drive
  466.1   .System includes a T-shaped or headed load suspended
            between parallel conveyors directly
  467.1   .System includes a rotating screw
  468.01  .System includes an oscillating or reciprocating load
            engaging element
  468.2   ..Comprising load gripping elements
  468.3   ...Gripping elements movable relative to one another to
              space articles in the load
  468.4   ...Suction gripping elementss
  468.5   ...Magnetic or electrostatic gripping elements
  468.6   ..Engaging element moves load vertically and horizontally
  468.7   ...Element pushes load over nonlinear support
  468.8   ..Engaging element moves load vertically only
  468.9   ..Engaging element moves load horizontally in a straight
             line
  468.1   ...Element pushes load over separate support and has
              nonlinear path of travel
  468.11  ...Element pushes load over separate support and has linear
              path of travel
  469.1   .System includes a rotating or endless carrier with a load
            engaging element
  470.1   ..Comprising a load gripping element
  471.1   ...Suction gripping element
  472.1   ...Magnetic or electrostatic gripping element
  473.1   ..Nongripping elements are adjustable or replaceable for
             different sized loads
  474.1   ..With means to move load engaging elements relative to
             carrier
  475.1   ...Whereby the load engaging component moves relative to
              the carrier to maintain load in a desired position during
              travel along a curved path
  476.1   ...Element is shifted to discharge or receive a load
  477.1   ....Element is only shifted with the load during discharge
  478.1   ..Carrier rotates about a fixed axis
  479.1   ...Elements push the load over a separate support
  480.1   ....With a load retaining guard means
  481.1   ...With load retaining guard means
  482.1   ..Means mounted on the engaging element to forceably eject
             the load from the element
  483.1   ..Means moveable mounted inside the path of the element to
             eject the load
  484.1   ..Elements comprise a nongripping pair of members which
             self-open as they pass through a curved path
  485.1   ..Nongripping elements support the load below the endless
             carrier
  486.1   ...Elements are hooks
  487.1   ..Nongripping elements are laterally projecting pins which
             engage the interior of a hollow load
  493     CONVEYER HAVING IMPINGING FLUID TO FEED, SHIFT OR DISCHARGE
           LOAD; OR MEANS TO FACILITATE CLEANING OF CONVEYER; OR
           STERILIZING OR LUBRICATING MEANS
  494     .Having cleaning means
  495     ..By fluid applying means
  496     ..By conveyer contacting brush
  497     ..By conveyer contacting scraper
  498     ...Having a moving scraper
  499     ...With scraper biasing means
  500     .Having lubricating means
  501     ..For rollers forming belt troughing structure
  502.1   WITH ALARM RINDICATOR
  502.2   .Means for measuring dimensions (height, width, or length)
            of load on a conveyor
  502.3   .Means for indicating position of unit load
  502.4   .Means responsive to conveyor movement to indicate speed or
            to actuate alarm due to abnormal speed
  506     CONVEYER HAVING MEANS SPECIALIZED FOR COLLECTING A LOAD FROM A
           STATIC SUPPORT (E.G., THE GROUND, ETC.))
  507     .Having control means responsive to load condition or unsafe
            operating condition
  508     .Having means to form a pile on a static support
  509     .Having buckets specialized to gather load batches
  510.1   .Power-driven feed means
  511     ..Having vertically adjustable feeding means
  512     ..Paired feeding means
  513     ...Opposite hand screws
  514     ...Opposed load engaging pushers
  515     ....Orbiting progressions of pusher elements
  516     .....Mounted on endless carriers
  517     ..Reciprocating pusher feeding means
  518     ..Rotating feeding means
  519     .Having means mounting conveyer for pile surface attack
  520     .Self-gathering pusher
  521     .By vibratory trough entrance means
  522     .Having passive material collecting means
  523     CONVEYER SYSTEM HAVING A GRAVITY CONVEYER SECTION
  524     .Condition responsive
  525     .With means to affect flow
  526     ..Moving flow control means coordinated with power-driven
             conveyer section
  527     ...Successive power-driven conveyer sections
  528     ..Power-driven conveyer section operatively engages adjustable
             gravity section
  529     ..Conveying element of power-driven conveyer section manipulated
             to effect load discharge
  530     ..Gate
  531     ...Actuated by, or otherwise coordinated with, power-driven
              conveyer section
  532     ...In generally vertical exit path of gravity discharge material
              holder
  533     ..By agitating, stirring, vibrating, etc.
  534     ..By retarding velocity or reducing volume
  535     ..Adjustably mounted conveyer section
  536     ...Section is terminal one of system
  537     .With means to handle portion of load which becomes separated
            from main flow path
  538     .Conveyer section(s) adjustable for nonoperative purpose (e.g.,
            storage, transport, etc.)
  539     .Including a load-supporting bridging element (e.g., horizontal
            surface) between conveyer sections
  540     .Gravity discharge material holder is source of supply,
            discharging by gravity to power-driven section
  541     ..With at least one more gravity section therebetween
  542     ...And having plural, successive power-driven sections
  543     ..With at least one more successive power-driven section
  544     ...Of the apron belt type
  545     ...Of the screw type
  546     ..Followed by at least one gravity section
  547     ..Apron belt type of discharge-receiving, power-driven section
  548     ..Screw type of discharge-receiving, power-driven section
  549     ..Bucket type of discharge-receiving, power-driven section
  550.01  .Bin having a power-driven conveyor section for discharging
            or feeding discharge to a gravity or power-driven section
  550.2   ..Having adjustable bin or discharge means
  550.3   ..Excess material on power-driven discharge means returned
             to binn
  550.4   ..Power-driven discharge means feeds to a subsequent
             gravity section
  550.5   ..Power-driven discharge means feeds to a subsequent
             power-driven section
  550.6   ...Of the screw type
  550.7   ...Of the bucket type
  550.8   ...Of the scraper type
  550.9   ...Of the apron type
  550.1   ..Screw type power-driven discharge means
  550.11  ..Bucket type power-driven discharge means
  550.12  ..Scraper type power-driven discharge means
  550.13  ..Apron type power-driven discharge means
  560     .Power-driven conveyer section feeding to gravity section (i.e.,
            gravity discharge material holder, or gravity flow path)
            feeding in turn to another power-driven section
  561     ..Gravity conveyor section fed by one run of power-driven
             section, and feeding in turn to another run of the same
             section
  562     .Gravity conveyor section is gravity flow path feeding to
            power-driven section
  563     ..Followed by gravity section (i.e., gravity discharge material
             holder, or gravity flow path)
  564     ..Thrower type power-driven section
  565     ..Plural gravity sections
  566     ..Plural power-driven sections
  567     ...Serially arranged
  568     .Plural power-driven conveyor sections feeding to gravity
            section (i.e., gravity discharge material holder, or gravity
            flow path)
  569     .Power-driven conveyor section feeding to plural gravity
            sections (i.e., gravity discharge material holder, or gravity
            flow path)
  570     CONVEYING SYSTEM HAVING PLURAL POWER-DRIVEN CONVEYING SECTIONS
  571     .With condition responsive control of a section
  572     ..By means responsive to presence or condition of load
  573     ...By overload sensing
  574     .Conveyer carried by load-engaging conveyer
  575     .With means controlling the interrelated operation of plural
            sections
  576     .With means operating successive sections in timed relation
  577     .With means for altering the speed (e.g., accelerating,
            decelerating, stopping,reversing, etc.) of a section
  578     .Having a cyclically swingable section
  579     .With means operating successive sections at different speeds
  580     .Recycling load in a closed path
  581     .With means allowing a section to fold upon itself
  582     .With supply chamber for system
  583     .With means connecting sections for quick assembly of
            disassembly
  584     ..By means allowing relative movement of joined sections
  585     .Including tripper
  586     .With relatively adjustable sections
  587     ..By means mounting a section for lateral swinging movement
  588     ...With means to vary the effective length of the system (e.g.,
              telescoping sections
  589     ...With means mounting a section to swing about a generally
              horizontal axis
  590     ...With yieldable side wallss
  591     ...With a curved guide or support
  592     ..By means mounting a section to swing about a generally
             horizontal axis
  593     ...With flexible means and winding drum
  594     ..By means to vary the effective length of the system
  595     ...By nested trough sections
  596     ....With opposed gripper means
  597     .Including power-driven means for laterally shifting a
            conveyer-engaged load
  598     ..By a revolving or pivotal member
  599     .Including non-driven means for moving load relative to
            conveyer
  600     .Including rest for transient load
  601     .Forming plural conveying paths feeding to single conveying path
            or vice versa
  602     .Forming a single conveying path
  603     ..Superposed sections forming an ascending or descending zigzag
             conveying path
  604     ..Load simultaneously engaged between and moved by coacting
             conveyers
  605     ...With load transfer between coacting conveyers
  606     ..Plural sections each formed of or including a closed flexible
             loop
  607     ...With elevating or lowering section
  608     ..Plural rotating sections
  609     ..Plural vibratory sections
  610     ..Diverse sections
  611     ...Having a rotating section
  612     ....With load engaging element carried by the rotating section
  613     .....Element retractable to disengage from load
  614     ....And a reciprocating section
  615     CONVERTIBLE
  617     PROCESSES
  618     CONVEYER SECTION
  619     .Load propelled as the reactive means in a linear motor or
            moving magnetic field
  620     .Load simultaneously engaged between and moved by a plurality of
            driven conveyer members
  621     ..Reciprocating member
  622     ..Oppositely moving members (e.g., doffing, etc.)
  623     ..Wherein the velocities of at least two of the members are not
             equal
  624     ..Rotary members
  625     ...Screw type
  626.1   ..Opposed endless belts
  626.2   ...Load is enclosed by belts
  626.3   ....Having means to adjust one belt relative to the opposed
               belt
  626.4   .....By biasing means
  626.5   ...Having adjustable belt portion
  626.6   ....By biasing means
  629     .Diverse
  630     .Moving wave type
  631     .Conveyer section or portion thereof cyclically rotates, shifts
            or oscillates for a extra-conveying function
  632     .Conveyer section folds to facilitate transportation or storage
            of section
  633     .Movement of load changed relative to conveyer movement onn
            contact of load with passive means
  634     ..Load responsive means or timing means controls load engaging
             means
  635     ..Stripper (e.g., static scraper)
  636     ..Passive means causes load to move laterally of conveyer
  637     ...To discharge load from conveyer
  638     .Thrower
  639     ..Condition responsive control
  640     ..With guide or deflector for material thrown
  641     ..Adjustable means to control trajectory distance or direction
  642     ..Rotary
  643     .Endless belt strand or chain-like member to lift viscous fluid
  644     .Conveyer for signatures
  657     .Screw
  658     ..Including rotating load confining means (e.g., tumbler)
  659     ..Including a deformable element
  660     ..Including an axially adjustable helical surface formation
  661     ..Having axially varying capacity
  662     ..Plural helical surface formations
  663     ...Separate, parallel formations supporting same load
  664     ...Transversing less than 360 degrees
  665     ....And reversible
  666     ...Coupled end-to-end
  667     ....With intermediate drive
  668     ....Pivotably
  669     ...Of opposite hand
  670     ..With means for controlling flow or to assist conveying
  671     ..With means to assist in discharging from or feeding to the
             housing of the helical surface information
  672     ..Including bearing means
  673     ...Bearing means directly engages periphery of the helical
              surface formation
  674     ..Including drive means
  675     ...Having reversible or variable speed
  676     ..Helical surface formation structure
  677     ..With means for securing helical surface formation to driving
             member
  678.1   .Endless conveyor having means for suspending load
  679     ..Magnetic means
  680     ..Means engagable with hanger to change hanger position relative
             to drive means or to release load
  681     ..Load directly suspended from means spanning between parallel
             drive means
  682     ..Having lock connection between hanger and load engaging means
  683     ..Articulated drive means provided with non-load supporting
             guide means
  684     ..Having means interengaging articulated drive and drive means
             therefor
  685     ..Elongated drive means and hanger interengaging means
  686     ...Strand or cable drive means connected to hanger below hanger
              support means
  687     ...Chain or pivotally connected members drive means connected to
              hanger below hanger support means
  687.1   ..Separable conveyor portion
  688.1   .Having means to enhance the friction or adherence between
            the conveyor and load at random locations on conveyor
  689.1   ..Suction
  690.1   ..Magneticc
  690.2   ..Transversely extending enlongated ridge means formed on
             or attached by nonmechanical means to the conveyor
  691     ..Electrostatic
  692     ..Impaling
  693     ...Having impaled load removal assisting means
  697     ..Load-engaging belt having separate load-impelling, projecting
             member swingably mounted thereon
  698     ..Load-engaging belt having load-impelling, projecting cross
             members (e.g., slat, etc.) joined thereto by mechanical
             fastening means
  699     ...Belt formed of a continuous member of flexible sheet-type
              material (e.g., canvas, etc.)
  699.1   ..By a plurality of laterally spaced, projecting members on
             the conveyor
  700     .Single suspended loop
  701     .Bucket
  702     ..To convey liquid
  703     ..Having means to facilitate loading or discharging load from
             bucket
  704     ...Bucket has door means to release load
  705     ...Having means to engage and move load from bucket
  706     ...Having means to pivot bucket relative to endless drive means
  707     ..Interconnected buckets form chain
  708     ..Having means to close gap between buckets
  709     ..Having means to adjust tension on endless bucket carrier
  710     ..Slide and guide or wheel and track means to movably support
             bucket
  711     ..Bucket with connection to endless band or strand-type carrier
  712     ..Bucket with connection to endless chain or link-type carrier
  713     ..Bucket structure
  714     ...Composite
  715     .Flexible pocket
  716     .Flight means in conduit for lifting flowable solid material
  717     .Pusher conveyer and separate load support surface
  718     ..Condition responsive control
  719     ..Having means to prevent damage to conveyer
  720     ..Having means to recycle conveyed load
  721     ..With antifriction or movable supporting surface
  722     ..Rotating pusher
  723     ...To move load in an arcuate path
  724     ....Wherein path is helical
  725     ..Endless-orbiting pusher or its load support
  726     ...Coacting plural pushers in plural orbits
  727     ...Pusher edge configured to load-support surface
  728     ...Pusher connected to endless pusher-carrier
  729     ....With carrier drive or guide means configured to pusher
  730     ....Integral element forming pusher, connection and carried
               link
  731     ....By detachable or adjustable connection
  732     ....By pivot between pusher and carrier
  733     ....By connection to single carrier
  734     ...Pusher-surface configuration
  735.1   ...Load support, casing, shield or auxiliary attachment
  735.2   ....Modules connectable end to end with no relative
               movement
  735.3   ....Door, casing, cover, or load supporting surface
  735.4   .....Casing or load supporting floor with door
  735.5   .....Removable cover overlying the conveyorr
  735.6   ....Modules connected end to end permitting relative
               angular positioning (e.g., due to uneven ground)
  736     ..Reciprocating pusher
  737     ...Plural laterally spaced alternately acting
  738     ...Mounted on a carrier
  739     ....Carrier has a swinging path of movement
  740     ....Carrier has an orbital path of movement
  741     ....Plural pushers
  742     .....Oscillating about axis or axes
  743     ......Axis or axes transverse to path of travel
  744     .......Axis or axes below load support surface
  745     ......Axis or axes perpendicular to load support surface
  746     ....Pivotally mounted pusher
  747     ...Pusher having linear path of movement
  748     ....Moved by endless actuator
  749     ...Pusher configuration
  750     .Reciprocating conveying surface
  751     ..With control means responsive to sensor means
  752     ..Vibratory conveying member
  753     ...Selectively operated to reverse direction of movement
  754     ...With flexible-belt extension
  755     ...With retrograde-movement preventer
  756     ...Having helical path
  757     ....Confined within a bowl
  758     ...Coupled parts from single vibratory trough
  759     ...Conveying member having support or drive
  760     ....With damper for conveying member or support
  761     ....With means to control load speed
  762     .....By control of motor speed
  763     ....Support for conveying member
  764     .....Pivotal link support
  765     .....Rolling contact support
  766     .....With drive causing conveying member vibration
  767     ......With damper for drive
  768     ......By fluid means
  769     ......By electromagnetic means
  770     ......By unbalanced weights
  771     ...Conveying member configuration
  772     ..With retrograde movement preventer
  773     ..Including set of alternately-acting load-support members
  774.1   ...Longitudinally extending interdigitated sets (lifted by
              oscillating arms, etc.)
  775     ....Each set movable
  776     .....Sets move through a closed-loop path
  774.2   ....Load support member lifted by inclined supporting fluid
               actuators
  774.3   ....Load support members lifted by supporting, eccentric
               cam or rotating crank drive
  774.4   ....Load support members lifted by inclined supporting
               surface
  777     ...Including transverse pivoted sets of alternately acting
              load-support members
  778     .Spiral
  779     .Load-supporting rolls moved about endless path
  780     .Live roll
  781     ..Roll drive means engages, disengages or slips responsive to
             lod position or blockage
  782     ..Having means to adjust position of roll relative to loadd
             (i.e., vertically, horizontally, angularly, etc.)
  783     ..Having intermittent, periodic, timed or programmed drive for
             rolls
  784     ..Arranged or having means to change load speed
  785     ..Roll(s) center load on conveyer
  786     ..Load moves axially of roll
  787     ..Rolls causes load to travel curved path
  788     ..With motor means for roll
  789     ..Roll drive means
  790     ...Belt drive
  791     ...Gear drive
  792     .Conveyer having a zone of varying speed
  793     .Unit load conveying surface means moved about an endless or
            rotating path
  794     ..With manual, position or condition responsive drive control
  797     ..Unit load conveying means maintained in uniform orientation
             while transiting from one direction to another
  798     ...By coacting with guide only while transiting from one
              direction to another
  799     ...Plural endless means support and maintain conveying surface
              horizontally orientated while moving around associated but
              axially displaced sprockets power-driven section
  800     ...By constant engagement with guide means throughout conveying
              course of travel
  801     ..Conveying surface elevates load and has cantilever-type
             connection with endless means
  802     ..Conveying surface movable relative to path
  803.01  ..Holder is removable or replaceable relative to drive
  803.2   ...Holder supported and driven by horizontally spaced
              drive
  795     ...Each conveying surface means abbutted and pushed by
              succeeding conveying surface means
  803.3   ..Holder grips load
  803.4   ...Relatively adjustable grippers space portion of load
  803.5   ...Suction gripper
  803.6   ...Magnetic or electrostatic gripper
  803.7   ...Gripper portion biased to load engaging portion
  803.8   ...Gripper portion made of resilient material which is self
              biased into engaging position
  803.9   ...Cam means moves at least one portion of the gripper to a
              load engaging position
  803.1   ...Gripping portions self-open as they pass through a
              curved path
  803.11  ..Nongripping holder is adjustable for different sized
             loads
  803.12  ..Holder for hollow load contacted interiorly
  803.13  ..Holder formed of nongripping elements which self-open as
             they pass through a curved path
  803.14  ..Holder means forms recess to receive or seat load
  803.15  ..Holder means forms an aperature for receiving load
  803.16  .Rotary conveyor without specific locations for supporting
            randomly placed articles or bulk material
  804     .Endless conveyer
  805     ..Magnetically guided, supported or driven
  806     ..Revolvable means engaging carrier belt face automatically
             skews to correct belt training deviation
  807     ...With power drive (e.g., pressure cylinder or electric motor,
              etc.) for skewing revolvable meanss
  808     ...With revolvable means supporting belt in transversely
              troughed form
  809     ..Vertically shiftable belt situated between auxiliary load
             supports
  810     ..Condition responsive
  811     ..Pressurized fluid or suction applied to carrier belt to modify
             its reaction with support
  812     ..Having variable conveying length
  813     ..Device for tensioning belt
  814     ...With spring biasing means
  815     ...With counterweight
  816     ...With screw adjusting means
  817     ..Separate, parallel conveying reaches supporting same load
  818     ..Having upwardly facing trough configuration in transverse
             direction on conveying reach
  819     ...Edges movable together to enclose load
  820     ...Having preformed trough shape
  821     ....Formed of or including a continuous member of sheet-like
               material (e.g., canvas, etc.)
  822     ....Formed or including transverse plates tandemly disposed
               lengthwise of carrier belt
  823     ...Supported in trough form by separate, unattached means
              engaging carrier belt face
  824     ....Roller or roller assembly
  825     .....Independently rotatable rollers canted relative to each
                other
  826     ......Means for selectively adjusting angle between rollers to
                 vary carrier belt shape
  827     ......Pivotally linked rollers form chain supported only at its
                 ends
  828     ......Roller-supporting transverse frame connected to side-frame
                 stand
  829     ......Individually cantilevered roller
  830     ......Transverse frame carrying at least three transversely
                 spaced roller supports
  831     ..Upper and lower runs of same belt travel vertically aligned,
             laterally bending paths
  832     ..Carrier belt drive means
  832.1   ...Indexed or intermittent drive
  832.2   ...Brake means to slow, stop or hold carrier belt
  832.3   ....Brake means directly engages carrier belt
  833     ...Carrier belt driven by contact with separate drive belt, or
              connected thereto by quick-release clamp
  834     ...Wheel with radial teeth-engaging carrier belt or means
              connected therewith
  835     ...Roller, wheel, or drum-engaging belt
  836.1   ..Having load retainer or guide separate from carrier belt
  836.2   ...Load retainer biases load transversely against carrier
              belt
  836.3   ...Laterally adjustable or yieldable guides contact load
  836.4   ...Replaceable modular guides for changing the conveying
              path cross-section
  837     ..Support, guide, or hold-down means for carrier belt
  838     ...Track which supports rollers attached to belt
  839     ...Means twists carrier belt or guides it between angularly
              oriented horizontal reaches
  840     ...Guide exerting lateral force on nonload-supporting belt
              surfacee
  841     ...Means slidably supporting belt
  842     ...Rotatable support or hold-down engaging non-load-carrying
              face of belt
  843     ....Resilient
  844.1   ..Carrier belt structure
  844.2   ...Connection means joins ends of sheet-like belt
  845     ...Carrier belt supported or guided by rotatable means attached
              thereto
  846     ...Formed of or including a continuous member of sheet-like
              material (e.g., canvas, etc.)
  847     ....Including separate reinforcing elements or plural
               sheet-formed plies
  848     ...Formed of or including wire mesh, or rods hooked together at
              belt edges
  849     ....Link belt attached to carrier belt
  850     ...Formed of or including pivotally interconnected rigid links
  851     ....Separate pins interconnect links
  852     .....Links pivot about mutually perpendicular axes
  853     .....Links having interfitted ends
  860.1   CONVEYOR FRAME OR CASING
  860.2   .Modules connectable end-to-end with no relative movement
  860.3   .Casing, cover, shield or load supporting surface
  860.4   ..Casing with door
  860.5   ..Removable cover overlying the conveyor
  861.1   .Adjustable conveyor frame or casing
  861.2   ..Conveyor frame or casing flexes or pivots intermediate
             its ends to move one end relative to the other
  861.3   ...Single horizontal pivot axis only
  861.4   ..Entire conveyor pivots about horizontal and vertical
             axes
  861.5   ..Entire conveyor pivots about horizontal axis
  861.6   ..Entire conveyor pivots about vertical axis
  866     MISCELLANEOUS
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  950     CONVEYER TRANSVERSES WALL APERTURE
  951     TURNING CIGARETTES END-FOR-END
  952     HEATING OR COOLING
  953     COIL SPRING UNTANGLING APPARATUS
  954     OVERFLOW
  955     AIR MANIFOLD
  956     IMPACT PLATES
  957     CONVEYER MATERIAL
  958     LOAD UNITS COUNTER
  959     WEIGHING