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.


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363-131 121-55A 14-.5
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Class Number: 254
 Class Title: IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING
              FORCE

Subclass  Subclass
Number    Title

  1       MISCELLANEOUS
  2 R     HOISTING TRUCK
  3 R     .Tilting load support
  3 B     ..Service station type
  3 C     ..Platform type
  4 R     .Cable hoist
  4 B     ..Service station type
  4 C     ..Platform type
  5 R     .Inclined plane or wedge
  5 B     ..Service station type
  5 C     ..Platform type
  6 R     .Rack and pinion or segment
  6 B     ..Service station type
  6 C     ..Platform type
  7 R     .Screw
  7 B     ..Service station type
  7 C     ..Platform type
  8 R     .Single throw lever
  9 R     ..Toggle
  9 B     ...Service station type
  9 C     ...Platform type
  10 R    ..Parallelogram bars
  10 B    ...Service station type
  10 C    ...Platform type
  8 B     ..Service station type
  8 C     ..Platform type
  2 B     .Service station type
  2 C     .Platform type
  10.5    METALLIC SPRING STRETCHER AND/OR COMPRESSOR (E.G., LEAF,
           HELICAL, OR COIL SPRINGS)
  11      FLOOR JACK TYPE
  12      .Rack and pinion or segment
  13      .Screw
  14      .Step-by-step traveling member
  15      .Single-throw lever and bar
  16      ..Sliding bar
  17      .Single throw lever
  18      NAIL EXTRACTOR TYPE
  19      .Hammer and anvil
  20      .Screw
  21      .Single throw lever
  22      ..Lever and pivoted jaw grip
  23      ..Multiple jaw grip
  24      ...Cam or wedge actuated
  25      ..Claw bar
  26 R    ...Hammer
  26 E    ....Extensible fulcrum
  27      ...Pivoted fulcrum member
  28      STAPLE PULLER
  28.5    THILL-COUPLING JACK
  29 R    PIPE OR ROD JACKK
  30      .Lifter
  31      ..Reciprocating clutch
  29 A    .Tie rod tensioner
  32      AXLE-LUBRICATING JACK
  33      CAR JOURNAL BOX LIFTING
  34      .Suspended lifter
  35      CAR-PUSHER TYPE
  36      .Pinch bar
  37      ..Rail clamping
  38      ..Pivoted wheel engaging member
  39      DOOR BRACE
  40      PRINTER'S QUOINS
  41      .Screw
  42      .Wedge
  43      RAIL OR TIE SHAFTER
  44      .Single throw lever
  45      VEHICLE-BODY LIFTERS
  46      .Lever and drum
  47      .Cable hoist
  48      ..Vehicle attached drum
  49      .Swinging side bars
  50      ..Single fixed pivot
  50.1    RESILIENT TIRE-CASING SPREADERS
  50.2    .Spreader and tire casing relatively movable or rotatably
            mounted
  50.3    .Fluid pressure operated
  50.4    .With tire casing support
  134.3 R METHOD OR APPARATUS FOR PLACEMENT OF CONDUCTIVE WIRE
  134.4   .By fluid pressure differential in conduit (e.g., parachute
            sucked through conduit)
  134.5   .Tractor for pulling wire (e.g., battery-powered)
  134.6   ..Step-by-step type (e.g., by camming against messenger)
  134.7   .Sectional members for fishing
  134.3 PA.Utility pole guide
  134.3 CL.Cable lashing
  134.3 FT.Conduit snakes
  134.3 SC.Submarine cable
  199     PORTABLE IMPLEMENTS OR APPARATUS FOR TENSIONING FLEXIBLE
           MATERIAL OR FOR EXTRACTING STUMPS OR POLES
  200     .Material comprises resilient floor covering (e.g., carpet)
  201     ..Including fluid or spring driven cylinder
  202     ..Including force transmitting cable and driven, rotatable,
             cable engaging drum
  203     ..Including driven, rotatable, floor covering engaging and
             pulling drum
  204     ..Including screw drive
  205     ..Including rack and pinion, or pinion segment, drive
  206     ..Including ratchet bar and driving pawl drive
  207     ...Having plural, disparate, driving pawls
  208     ..Including rotatable, pulley wheel element and cable
  209     ..Including force transmitting, hand held and operated, lever
  210     ...With means attached thereto for sequentially, gripping,
              shifting, and releasing bar component
  211     ...With floor covering clamping means attached to lever
  212     ...Having linearly shifting, guided component attached thereto
  213     .Including rotatably driven drum for engaging either material or
            force transmitting cable
  214     ..Plural drums or drum with plural distinct sectionss
  215     ...Juxtaposed to material or cable at single locus
  216     ..Having pressure element spaced therefrom to confine material
             or cable thereagainst
  217     ..Having ratchet wheel and interengaging pawl for driving drum
  218     ...Pawl pivots about fixed point on drive handle
  219     ..Having intermeshing gears for driving drum
  220     ...Worm and worm wheel
  221     ..With projections or apertures on drum for engagement with
             complementary formations on material or cable
  222     ..With means for preventing or retarding rotation in at least
             one direction
  223     ...Ratchet wheel or formation and pawl
  224     ..With adjustable gripping device for attaching drum to rigid,
             in situ structure
  225     ..With material or cable contacting infeed guide
  226     ...Rotatable pulley wheel element
  227     ..With ground-engaging support means
  228     .Including expansible chamber fluid motor drive
  229     .Including worm and worm wheel gear drive
  230     .Includng rack and pinion, or pinion segment, drive
  231     .Including screw drive
  232     ..Plural screws
  233     ...Having plural, oppositely shifting, threaded riders
  234     ..Having plural, oppositely shifting, threaded riders
  235     ..Having ratchet wheel and pawl for driving screw
  236     ..Having intermeshing gears for driving screw
  237     .Including ratchet bar and driving pawl drive
  238     ..Having plural, disparate, driving pawls
  239     ...Plural ratchet formations
  240     ....Facing opposite directions
  241     .Including intermeshing gear drive
  242     .Including rotatable, pulley wheel element and cable
  243     .Including either force transmitting, hand held and operated
            lever or animal powered sweep
  244     ..Implement or apparatus includes bar component having plural
             holes and removable cooperating pins selectively engagable by
             lever
  245     ..With means attached thereto for sequentially gripping,
             shifting, and releasing bar component
  246     ..Having linearly shifting, guided component attached thereto
  247     ...With ratchet formation and locking pawl for maintaining
              relative positioning
  248     ..With additional, hand held lever pivotally attached thereto
             for applying pulling force in opposite direction
  249     ...Having position locking means between levers
  250     ..With camming means thereon, and pressure element spaced
             therefrom to confine material, or force transmitting cable,
             thereagainst
  251     ..With material, article, or force transmitting cable clamping
             means attached to and shifting with lever
  252     ...Including cooperating, relatively stationary means for
              intermittently locking material or cable
  253     ...Plural clamping means
  254     ....Alternately clamping and pulling on material or cable
  255     ....Attached by flexible connector
  256     ..With material, article, or force transmitting cable engaging
             means movably attached to and shifting with lever
  257     ...Including cooperating, relatively stationary means forr
              intermittently locking material or cable
  258     ...Plural, movably attached engaging means
  259     ....Alternately engaging and pulling on material or cable
  260     ....Attached by flexible connector
  261     ..With means pivotally connected to lever and adapted to engage
             rigid, in situ structure
  262     .Including adjustable gripping device for attaching implement or
            apparatus to rigid, in situ structure
  263     .Including ground engaging means for supporting implement or
            apparatus in plural, vertically spaced positions
  84      TRAVERSING JACK
  85      .Screw
  418     VEHICLE ATTACHED JACK
  419     .Semi-trailer landing gear
  420     .Attached to trailer tongue
  421     .Turntable
  422     .Rocking lever
  423     .Hydraulic or pneumatic
  424     .Screw actuated
  425     ..Gear driven
  426     .Cable actuated
  427     .Rack and pinion
  264     APPARATUS FOR HAULING OR HOISTING LOAD, INCLUDING DRIVEN DEVICE
           WHICH CONTACTS AND PULLS ON CABLE
  265     .Device includes driven, flexible, cable contacting belt
  266     .Device includes rotatably driven, cable contacting drum
  267     ..Having rotational speed governor for generating control
             impulse to rotation retarding means or drive
  268     ..Having mechanism, actuated by changes in position of drum
             relative to another component of device, for generating
             control impulse to rotation retarding means or drive
  269     ..Having stationary mechanism, actuated by load or other
             obstruction on and traveling with cable, for generating
             control impulse to rotation retarding means or drive
  270     ..Having cable contacted, supported, or attached mechanism for
             generating control impulse to retarding means or drive
  271     ...With cable contacting component, on or adjacent to
              circumference of drum, shifted by segment of wound cable
  272     ...With cable deflecting or path defining component shifted by
              cable when tension varies
  273     ....Electricity or fluid utilized in transmittal of impulse
  274     ..Having mechanism, linked to drum or rotating element of drive,
             for generating control impulse to rotation retarding means or
             motor when torque on drum varies
  275     ...Electricity utilized in transmittal or impulse
  276     ..Having mechanism, linked to drum and actuated by number of
             drum rotations, for generating control impulse to rotation
             retarding means or drive
  277     ..With fluid or resilient shock absorbing or tension maintaining
             means attached to, supported by, or supporting guiding
             structure for cable
  278     ..Plural drums or drum with plural distinct sections
  279     ...With vehicle for supporting at least one drum
  280     ....Having rotatable, cable guiding, pulley wheel element spaced
               from drums
  281     .....Element repositionable relative to at least one of the
                drums
  282     ....Drive for at least one drum includes motor of vehiclee
  283     ...Having rotatable, cable guiding, pulley wheel element spaced
              from drums
  284     ....Element repositionable relative to at least one of the
               drums
  285     .....Plural elements
  286     ....Plural elements
  287     ...Juxtaposed to cable at single locus
  288     ...With means affixing at least one drum to supporting base and
              allowing movement between drum and base
  289     ....Movement engages or disengages drum from drive
  290     ...Plural, distinct, drive motors
  291     ....Noncompressible fluid
  292     ....Electric
  293     ...Each drum having plural, distinct drive sources or discrete
              drive trains
  294     ...Having common drive source or mechanically interlinked drive
              trains
  295     ....Including intermeshing gears in drive
  296     .....Worm and worm wheel
  297     .....Epicyclic gear train having sun, intermediate (e.g.,
                planet), and ring gears
  298     .....Shiftable into and out of intermeshing engagement
  299     .....Also including clutch mechanism having coaxial, rotatable,
                relatively shiftable axially, power transmitting
                components
  300     ......With frictional brake assembly mechanically linked to, and
                 operationally influenced by, clutch
  301     ......With additional axially shiftable clutch mechanism
                 mechanically linked to, and operationally influenced by,
                 first clutch
  302     .......Alternately transmitting power
  303     ......Fluid operated actuator shifts component
  304     ......Components having frictional contact surface
  305     .......Truncated cone shaped
  306     .....Also including ratchet wheel and driving pawl
  307     ......Plural driving pawls
  308     .......Attached to rotatable disk or shaft
  309     .....Also including clutch mechanism having rotatable, radially
                shiftable, power transmitting component
  310     .....With means for preventing or retarding rotation of one or
                more drums in at least one direction
  311     ....Including sprocket wheel and chain in drive
  312     ....Including power transmitting pulley and rope or belt either
               in drive or in cable return means
  313     ....Including contacting friction wheels having noncollinear
               axes of rotation in drive
  314     ....Including expansible, noncombustible, fluid motor in drive
               (e.g., air, steam)
  315     ....Including noncompressible fluid motor or pump in drive
  316     ....Including electric motor in drive
  317     ....Including clutch mechanism in drive having coaxial,
               rotatable, relatively shiftable axially, power transmitting
               components
  318     .....With frictional brake assembly mechanically linked to, and
                operationally influenced by, clutch
  319     .....Components having frictional contact surface
  320     ....Including ratchet wheel and interengaging driving pawl in
               drivee
  321     ....Including means for preventing or retarding rotation of one
               or more drums in at least one direction
  322     .....Frictional brake assembly having rotating, wheel structure
                and shiftable shoe or band
  323     ..With vehicle for supporting drum
  324     ...Having arch-shaped body for straddling load
  325     ...Having rotatable, cable guiding, pulley wheel element spaced
              from drum
  326     ....Element repositionable relative to drum
  327     ....Plural elements
  328     ...Drive for drum includes motor of vehicle
  329     ..With means affixing drum to supporting base and allowing
             relative movement therebetween
  330     ...Movement engages or disengages drum from drive
  331     ...Movement occurs along line collinear with rotational axis of
              drum during pulling of cable
  332     ...Including pivotal, rotational, or swivel connection between
              drum and base
  333     ..Having pressure element spaced from drum to confine cable
             thereagainst
  334     ..Having rotatable, cable guiding, pulley wheel element spaced
             from drum
  335     ...Element repositionable relative to drum
  336     ....Plural elements
  337     .....Cable supported
  338     ...Plural elements
  339     ..Having plural, distinct drive sources or discrete drive
             trains
  340     ...Including two or more motors
  341     ..Drive includes rack and either pinion or pinion segment
  342     ..Drive includes intermeshing gears
  343     ...Worm and worm wheel
  344     ...Epicyclic gear arrangement including sun, intermediate (e.g.,
              planet), and ring gears
  345     ...Shiftable into and out of intermeshing engagement
  346     ...Drive also includes clutch mechanism having coaxial,
              rotatable relatively shiftable axially, power transmitting
              components
  347     ....With frictional brake assembly mechanically linked to, and
               operationally influenced by, clutch
  348     ....With additional axially shiftable clutch mechanism
               mechanically linked to, and operationally influenced by,
               first clutch
  349     ....Fluid operated actuator shifts component
  350     ....Components having frictional contact surface
  351     .....Truncated cone shaped
  352     ...Drive also includes ratchet wheel and driving pawl
  353     ....Plural driving pawls
  354     .....Attached to rotatable disk or shaft
  355     ...Drive also includes clutch mechanism having rotatable,
              radially shiftable, power transmitting component
  356     ...With means for preventing or retarding rotation of drum in at
              least one direction
  357     ....Ratchet wheel or formation and locking pawl
  358     ..Drive includes sprocket wheel and chain
  359     ..Either drive or cable return means includes power transmitting
             pulley and rope or belt
  360     ..Drive includes expansible, noncombustible, fluid motor (e.g.,,
             air, steam)
  361     ..Drive includes noncompressible fluid motor or pump
  362     ..Drive includes electric motor
  363     ..Drive includes contacting friction wheels having noncollinear
             axes of rotation
  364     ..Either drive or cable return means includes spring
  365     ..Drive includes clutch mechanism having coaxial, rotatable,
             relatively shiftable axially, power transmitting components
  366     ...With frictional brake assembly mechanically linked to, and
              operationally influenced by, clutch
  367     ...Fluid operated actuator shifts component
  368     ...Components having frictional contact surface
  369     ..Drive includes ratchet wheel and interengaging driving pawl
  370     ..Drive includes clutch mechanism having rotatable, radially
             shiftable, power transmitting component
  371     ..With means on circumference of drum, or relatively movable
             drum components, for grasping cable
  372     ..With projections or apertures on drum for engagement with
             complementary structural formations on cable
  373     ..With pickup or pushing means on circumference of drum for
             cooperating with structure attached to, or formed on, end of
             cable
  374     ..Having noncircular or varying diameter, cable contacting
             perimeter
  375     ..Including means for preventing or retarding rotation of drum
             in at least one direction
  376     ...Ratchet wheel or formation and locking pawl
  377     ...Fluid resistance brake
  378     ...Frictional brake assembly having rotating, wheel structure
              and shiftable shoe or band
  379     ....Having fluid actuator for shifting shoe or band
  380     ..With portable housing for drum and hand manipulated means for
             removably fastening housing to supporting base or load
  381     ..With structure (e.g., sweep, tree, yoke) adapting drum to be
             powered by draft animal
  382     ..Including static receiver spaced from drum for storing pulled
             cable
  383     ..With cable guard structure extending partly around and closely
             adjacent to drum
  384     .Including hand held and operated lever with plural cable
            engaging means movably attached thereto for alternately
            contacting and pulling on cable
  385     .With rotatable, cable contacting, pulley wheel element attached
            to and reciprocated by driving component of device
  386     ..Element reciprocated by expansible fluid motor
  88      INCLINED PLANE LIFTER
  89 R    MULTIPLE LIFTERS (E.G., VEHICLE LIFTS)
  90      .Track-straddling platform
  91      .Swinging platform
  92      .Screw
  89 H    .Fluid pressure
  93 R    FLUID PRESSURE
  93 VA   .Vehicle attached
  93 L    .Service station lifts
  93 A    .Combined with screw
  93 HP   .Inflatable portable bags
  93 H    .Portable automobile jacks
  94      ROCKING SUPPORTSS
  95      RACK AND PINION
  96      .Screw pinion
  97      .Geared
  98      SCREW
  99      .Derrick type
  100     .Special engaging feature
  101     ..Rocking head or base
  102     .Telescoping screws
  103     .Geared
  104     WEDGE
  105     STEP-BY-STEP TRAVELING BAR
  106     .Clutch actuated
  107     ..Multiple driving clutches
  108     .Pawl actuated
  109     ..Multiple driving pawls
  110     ...Reversing
  111     ..Reversing
  112     .Rack and lever
  113     SINGLE THROW LEVER AND BAR
  114     .Sliding bar
  115     ..Rack bar and segment
  116     ..Adjustable
  117     ...Lateral shoe
  118     ...Rack bar
  119     .Adjustable
  120     SINGLE THROW LEVER
  121     .Rail or tie lifter
  122     .Lazy tongs
  123     .Lever-supported thrust bar
  124     .Mechanically actuated
  126     ..Screw
  127     ..Cable
  128     ...Block and tackle
  129     .Adjustable
  130     ..Multiple fulcrums
  131     .Special engaging feature
  131.5   ..Fulcrumed fork or shovel
  132     ..Root puller type
  387     LOAD ENGAGING MEMBER AND POWER TRANSMITTING CABLE FOR SHIFTING
           MEMBER RELATIVE TO STRUCTURE WHICH CONTACTS AND GUIDES MEMBER
  133 R   SPECIAL ENGAGING ELEMENTS
  134     .Adjustable
  133 A   .Sharing props (nonhydraulic)
  388     MEANS SUPPORTED BY, AND MAINTAINING RELATIVE SPACING BETWEEN,
           LONGITUDINAL RUNS OF AN ENDLESS LOAD MOVING CABLE
  389     DEVICE OR MEMBER FOR CONTACTING AND GUIDING MOVING CABLE
  390     .Including rotatable, cable contacting, pulley wheel element
  391     ..With mechanism for retarding or preventing cable movement or
             element rotation
  392     ..With fluid, shock absorbing or tension restoring mechanism
             connected thereto
  393     ..Plural elements or element with plural cable contacting
             regions
  394     ...At least two of the elements having noncollinear axes of
              rotation
  395     ....Juxtaposed to cable at single locus
  396     .....Having juxtaposed elements repositionable relative to one
                anotherr
  397     .....Including additional element spaced along cable path
  398     ....Having one element repositionable relative to another
               element
  399     .....Repositionable element supported by cable (e.g., traveling
                block)
  400     ....Having axes perpendicular or skewed
  401     ...With portable block for elements and hand manipulated means
              for removably fastening block to support base or load
  402     ....Having portion of block repositionable for insertion or
               removal of cable or for exposure of elements
  403     ....With guard or guide for maintaining cable on elements
  404     ....Including antifriction means for elements
  405     ..With block for element and portion thereof repositionable for
             insertion or removal of cable or for exposure of element
  406     ...Portion revolves about axis of rotation of element
  407     ..With means, or element structure, enabling object or
             obstruction on cable to bypass or travel over element
  408     ..With block for element having stationary portion adapted to
             coact with element to grip cable
  409     ..With portable block for element and hand manipulated means for
             removably fastening block to support or load
  410     ...Fastening means remotely operable or breakaway type
  411     ...With guard or guide for maintaining cable on element
  412     ...Including antifriction means for element
  413     ..With means for affixing element to support base and allowing
             relative movement therebetween
  414     ...Including elastic member
  415     ...Including pivotal, rotational, or swivel connection
  416     ..With antifriction means for element
  417     .Having cable contacting portion revolving around another
            component of device
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  900     CABLE PULLING DRUM HAVING WAVE MOTION RESPONSIVE ACTUATOR FOR
           OPERATING DRIVE OR ROTATION RETARDING MEANS
  901     ANTIFRICTION MEANS FOR CABLE PULLING DRUM
  902     EITHER DRUM, PULLEY WHEEL ELEMENT, OR CABLE CONSTRUCTED FROM
           SPECIFIC MATERIAL
  903     YIELDABLE, CONSTANT ENGAGEMENT, FRICTION COUPLING (E.G., SLIP
           CLUTCH) IN DRIVE FOR CABLE PULLING DRUM
  *       ******************************
  *       DIGESTS
  *       ******************************
  DIG 1   Jack bases
  DIG 2   Electric screw jacks
  DIG 3   Jack handles
  DIG 4   Object engaging heads for jacks
  DIG 5   Means for depressing foot brake when adjusting same
  DIG 6   Flexible rack and pinion
  DIG 7   Printers form trucks
  DIG 8   Screw jacks, plural section nut
  DIG 9   Vehicle-operated lift platform
  DIG 10  Tire or rim expanding or contracting devices
  DIG 11  Cable drum feed for presser
  DIG 12  Pawls
  DIG 13  Vehicle retarding drums
  DIG 14  Rope attachmentt
  DIG 15  Motor clamps
  DIG 16  AUTOMOBILE TRANSMISSION JACK