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: 213
 Class Title: RAILWAY DRAFT APPLIANCES

Subclass  Subclass
Number    Title

  1 R     MISCELLANEOUS
  1 A     .One-shot shock absorber
  1.3     COMBINED COUPLER AND ELECTRIC CONNECTOR
  1.6     .With additional circuit-making or breaking means
  2       LOCOMOTIVE AND TENDER
  3       .Locomotive to tender
  4       .Movable to inoperative position
  5       ..With drawbar-lifting means
  6       .Pocket type
  7       CUSHIONED
  8       .Continuous
  9       .Combined with car end buffer
  10      .Single center sill
  11      .Bolster-positioned
  12      .Radially movable
  13      ..Vertically
  14      ...Combined horizontally
  15      ..Truck-controlled
  16      ..Hand-controlling devices
  17      ...Combined uncoupling levers
  18      ..Swing head
  19      ...Centering devices
  20      ..Centering devices
  21      ...Drawbar carriers
  22      .Combined spring and friction
  23      ..Preliminary spring
  24      ...Shoes and wedges with casings
  25      ..Springs only on draft
  26      ..Differential spring compression
  27      ...Rotating friction elements
  28      ..Rotating friction elements
  29      ..Interengaging friction springs
  30      ...Plate springs
  31      ..Friction casings
  32 R    ...Shoes and wedges
  33      ....Interleaved friction plates
  34      ....Compound wedges
  32 A    ....Plural spring
  32 B    ....Retaining means on draft gear barrel
  32 C    ....Draft gear assembly
  35      ..Central friction post
  36      ...Shoes and wedges
  37      ..Transversely movable friction element
  38      ...Transverse springs
  39      ....Inwardly movable
  40 R    .Springs
  41      ..Varying resistance
  42      ..Tension
  43      ..Fluid
  44      ..Multiple
  45      ...Tandem arrangement
  46 R    ....Separate springs for buff and draftt
  46 A    .....Draft rod through cushion
  47      ....With yokes
  48      .....Opposed overlying plungers
  49      ...Parallel arrangement
  40 D    ..Interlocking parts
  40 S    ..Special
  50      .Cooperating parts fixed to car
  50.5    ..Draft key retainers
  51      ..Draft sills
  52      ...Parallel-spring arrangement
  53      ...Tandem-spring arrangement
  54      ..Cheek plates
  55      ...Tandem-spring arrangement
  56      ..Individual-follower stops
  57      ...Combined bolster casting
  58      ..Striking block
  59      ...Resilient
  60      ...Combined drawbar carrier
  61      ..Drawbar carrier
  62 R    .Drawbars
  63      ..Extensions
  64      ..Connections to cushion
  65      ...Friction casings
  66      ...Links
  67 R    ...Yokes
  68      ....Longitudinally divided
  69      ....Drawbar connections
  70      .....Hooded
  71      ......Pivotal
  72      .....Pivotal
  67 A    ....Special
  62 A    ..Rotatable couplers
  73      CONTINUOUS
  74      RADIALLY MOVABLE
  75 R    COUPLINGS
  76      .Combined car and air train line
  77      .Counterpart
  78      ..Link or bar type
  79      ...Selective coupling element
  80      ....Beveled link and swing catch
  81      .....Arrowhead type
  82      ....Hook and link
  83      .....Bails
  84      ....Hook and link combined
  85      ....Headed link and shouldered slot
  86      ....Pin and link
  87      .....Swing pin
  88      ...Hook and catch
  89      ....Pivoted hooks
  90      .....Horizontally swinging
  91      ...Beveled link and swing catch
  92      ....Arrowhead type
  93      ...Hook and link
  94      ....Bails
  95      ...Hook and link combined
  96      ...Headed link and shouldered slot
  97      ....Rotary head or link
  98      ...Pin and linkk
  99      ....Swing pins
  100 R   ..Interengaging hooks and knuckles
  101     ...Arrowhead type
  102     ....Plural
  103     ...Transversely sliding bill
  104     ...Horizontally swinging
  105     ....Miller hooks
  106     .....Movable bill
  107     ....Star wheel
  108     ....Plural
  109     ....Janney type
  110     .....Always in coupling position
  111     .....Auxiliary and emergency
  112     ......Transition construction and devices
  113     .....Plural-tailed knuckles
  114     .....Pinless knuckles
  115     .....Knuckle openers
  116     ......Springs
  117     ......Gravity
  118     .......Knuckles
  119     ......Combined locks
  120     .......Vertically movable and horizontally rotatable
  121     .......Vertically movable and tilting
  122     .......Vertically sliding
  123     ........Pivotally-attached member
  124     .......Pivoted or rotatable
  125     ......Lock-operated
  126     .......Vertically sliding locks
  127     ........And rearwardly swinging
  128     ........Vertically swinging levers
  129     .......Vertically swinging locks
  130     .......Horizontally sliding locks
  131     ......Lock-operating
  132     .......Continuing movement
  133     ........Horizontally rotating shaft
  134     ........Pivoted levers
  135     ........Sliding
  136     .........Vertically
  137     .......Separate movement
  138     ........Rotating and sliding
  139     .....Gravity locks
  140     ......Knuckle-attached
  141     ......Vertically swinging
  142     .......With lock set and anticreep
  143     .......With lock set
  144     .......With anticreep
  145     ......Vertically sliding
  146     .......With lock set and anticreep
  147     .......With lock set
  148     .......With anticreep
  149     .....Horizontally sliding locks
  150     .....Horizontally swinging locks
  151     .....Contour
  152     .....Knuckle and head interengagement
  153     .....Vertical disengagement prevention
  154     .....Guard-arm construction
  155     .....Knuckle and knuckle pins
  156     .....Knuckle-pin bottom retainerss
  157     .....Detachable ears
  158     .....Lifter and lock-hole closures
  159     .....Uncoupling devices
  160     ......Emergency
  161     ......Selectively movable
  162     ......Pull rods, chains or ropes
  163     ......Interengaging levers
  164     .......Vertically swinging
  165     ......Vertically swinging
  166     ......Rotating horizontal shafts
  167     .......Journaled to coupler head
  168     .......Directly connected to lock
  169     .......Horizontal link to lock
  170     .......Vertical link to lock
  171     ......Brackets
  172     ...Vertically swinging
  173     ....Vertical hook
  174     ...Rotating
  100 W   ...Willison coupler
         .Link or bar type
  175     ..Hook and catch
  176     ..Beveled link and wing catch
  177     ...Arrowhead type
  178     ..Hook and link
  179     ...Pivoted hook
  180     ....Multiple
  181     ...Bails
  182     ..Headed link and shouldered slot
  183     ...Pivoted head
  184     ...Rotating head or link
  185     ..Beveled link and sliding catch
  186     ...Arrowhead type
  187     ..Beveled link and fixed catch
  188     ..Pin and open link
  189     ...Automatic pin moving
  190     ....Swing pin
  191     .....To coupling position
  192     ...Pin supports
  193     ....Tilting pin
  194     ....Gravity
  195     .....Combined link lifters and supports
  196     ......Rollers
  197     .....Pivoted latches
  198     ......Pin-attached
  199     ......Stirrups
  200     ....Spring
  201     .....Combined link lifters and supports
  202     .....Horizontally sliding
  203     ......Link-operated
  204     .....Pivoted
  205     ...Link lifters and supports
  206     ....Opposed car
  207     ....Levers
  208     ..Links
  209     ...End opening
  210     ...Handled
  211     .Uncoupling devices
  212     ..Central controll
  213     ..Operable from car top or side
  214     ...Rotating vertical shaft
  215     ..Operable from car top only
  216     ..Rotating vertical shafts
  217     ..Flexible
  218     ..Vertically swinging lever
  219     ..Rotating horizontal shafts
  75 A    .Operated by trackside mechanism
  75 B    .Mine car
  75 TC   .Toy train
  75 D    .Magnetic
  75 GT   .Glass table
  220     CAR-END BUMPERS OR BUFFERS
  221     .Resilient
  222     ..Car platform type
  223     ..Fluid
  224     SIDE-TRACK PUSH RODS