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: 269
 Class Title: WORK HOLDERS

Subclass  Subclass
Number    Title

  1       HAND MANEUVERED OR WORK SUPPORTED TOOL GUIDES
  2       .Relatively movable jaws
  3       OPERATOR SUPPORTED
  4       .Convertible to bench supported
  5       .With opening through handle for work supply
  6       .Handle manipulation for jaw actuation
  7       SOLIDIFICATION OF WORK CONTACTING MEDIUM
  8       MAGNETIC HOLDER
  9       PLURAL SELECTIVELY USED HOLDERS
  10      .Work stop abutment
  11      WITH HOLDER ILLUMINATING MEANS
  12      WITH DRY RUN WORK DRIVING MEANS
  13      WITH PRODUCT DISCHARGE FACILITATOR
  14      .Product mover
  15      WITH CATCH PAN
  16      WITH PART OR TOOL HOLDING RECEPTACLE
  17      WITH GROUND TRAVERSING MEANS
  19      WITH PLUMB INDICATOR
  20      WITH FLUID MEANS
  21      .Vacuum-type holding means
  22      .With movable diaphragm
  23      .With safety means
  24      .Plural positioning means sequentially operated
  25      .Cylinder-piston means directly moves jaw(s)
  26      ..With equalized pressure on plural (nonopposed) jaws
  27      .Cylinder-piston means in series with additional positioning
            means
  28      ..With separate air means in series with liquid means
  29      ..Including self-contained manual pump means
  30      ..With common fluid means for holding and releasing
  31      ...Cylinder-piston unit rotatably and/or pivotally mounted
  32      ..Mechanical means between fluid means and jaw
  33      ...Including opposed cylinder-piston means
  34      ...Single fluid unit moves plural spaced jaws
  35      .With guide means
  36      FENCE BOARD HOLDER AND GAUGE
  37      PLURAL HOLDERS TO HOLD WORKPIECES RELATIVE TO EACH OTHER
  38      .Fletching jig (i.e., arrow feathering holder)
  40      .Fixed work-contacting portions for each holder
  41      .Workpieces normal to each other (e.g., miter clamps)
  42      ..Means for simultaneous actuation of holders
  43      .Workpieces parallel to each other (e.g., box-shook clamp)
  44      ..Three holders
  45      .With means to relatively array or arrange holders
  46      SUSPENDED HOLDER
  47      HOLDER INSERTED WITHIN WORK APERTURE
  48      .With tool couple element
  48.1    .Expandable mandrel
  48.2    ..Plural pin mandrel
  48.3    ...Having intermediate expanding means
  48.4    ....And coil spring
  49      .Inserted holder movable relative to work backupp
  50      .Holder mounted for movement
  51      ..Compound or plural movement
  52      .Within concentric opening
  53      PIN-TYPE HOLDER
  54      .With work-overlying clamp
  54.1    .With means to drive pin into work
  54.2    ..Including opposed coacting pins
  54.3    ...Three or more pins
  54.4    .With work-underlying support
  54.5    ..Pin perpendicularly extended
  55      HOLDER MOUNTED FOR MOVEMENT
  56      .Relative to a station
  57      ..Rotary (e.g., dial type)
  58      .Including means to shift holder position
  59      ..With means to lock shift means
  60      ..Screw means
  61      ..Gear means
  62      ..Treadle means
  63      .With indexing steps
  64      ..Corrugated
  65      ..Threaded
  66      ..Cam or eccentric means
  67      ..Pin-rack
  68      ..Pawl-rack
  69      ..Peg-hole
  70      ...With bias means
  71      .With plural means for changing holder positions
  72      ..Single lock for plural means
  73      ..Means for dual position only
  74      .Means for position lock
  75      ..For universal joint
  76      ..Set screw type
  77      ..Periphery clamp type
  78      ...Split ring type
  79      ..Effective on a movable brace
  80      ..For yoke type
  81      ..Of holder to table (i.e., reference base or wall)
  82      ..Plane bearing surfaces clamped together
  83      ...Radial bearing surface type
  84      ....Central clamp
  85      ....Plural clamps
  86      RELATIVELY MOVABLE JAWS
  87      .With tool couple element
  87.1    ..With guide means
  87.2    ...Slot type
  87.3    ...Hole type
  88      .Convertible to other type or form of holder
  89      .Jaw actuation locks holder position relative to base
  90      .With separate means to lock jaw(s) after actuation
  91      .Clamp couple element with fastening means
  92      ..With plural actuating means
  93      ..Responsive to element actuating means
  94      ..Rocking-element type
  95      .With means to fasten holder to support (e.g., portable)
  96      ..Wrench or plier type of work holder
  97      ..Clamp type fastening means
  98      ...Unitary fastener-jaw and holder-jaw
  99      ..Socket type fastening meanss
  100     ...Aperture in support
  101     ..Threaded fastening means
  102     ..Nail or spur fastening means
  103     .For cable about thimble (e.g., rigger's vise)
  104     .Plural jaw pairs, angularly oriented, for common work
  105     ..Three jaw couples in three nonparallel planes
  106     ...With actuating means for each couple
  107     ..Interrelated actuating means
  108     ...Constricting loop common to plural jaw pairs
  109     ...Four relatively movable corner-angled jaws
  110     ..One actuated jaw carries a second actuated jaw
  111     ..Quadrilateral frame type
  112     ...Diagonally moved jaw
  113     ...Plural actuating means for one side
  114     ....Plural actuators on each of two sides
  115     ...Actuator located at corner
  116     ....Actuators at diagonal corners
  117     .....Actuator at each corner
  118     ...Actuated jaw couples perpendicularly related
  119     ....Actuator for each side
  120     ...One couple adjusted and one couple actuated
  121     ...Adjustment means intermediate ends of side
  122     ...Adjustment means including attached wedge means
  123     ....Wedge means attached by chain
  124     ...Adjustment means at diagonal corners
  125     ....Adjustment means at four corners
  126     .Including pivoted yoke frame jaw carrier
  127     ..With specific latch means
  128     ...Latch means includes jaw actuating element(s)
  129     ..With jaw actuating means intermediate yoke legs
  130     .Including constrictable loop (strand or articulated) jaw
  131     ..Flaccid loop
  132     ..With means to actuate a coacting jaw
  133     .Weight of a vertically disposed panel actuates jaws
  134     .With means for "hold-down" component of force
  135     ..With rockable work contacting member
  136     ..Moved by linearly acting jaw
  137     ..Inclined actuator and/or jaw travel
  138     ..With wedge or cam means
  139     .With means to align coacting jaw faces
  140     .With separate positioning means for each of jaw pair
  141     ..Adjustable positioning only
  142     ..Separate means to actuate each of a jaw pair
  143     ...Portable C-clamp type
  145     ...Same actuator type for each jaw
  146     ..Means to both actuate and adjust the same jaw
  147     ..Portable straight beam type
  148     ...Plural parallel beams
  149     ...Extensible beam
  150     ..Pivoted jaw actuator means
  151     .With means to orient actuating force on jaws
  152     .Plural jaw pairs
  153     ..With common actuating means
  154     ..One jaw common to plural coacting jaws
  155     ..Acting in intersecting planes
  156     .Three coacting work grippers
  157     .With means to bias jaw(s) toward nonholding position
  158     ..Pedal lever actuatorr
  159     ...Including position latch or lock
  160     ..Spring coil around actuating screw
  161     ..Leaf spring between pivoted jaws
  162     ..Spring coil around or abutting cam or cam follower
  163     ..With articulated attachment or insert for jaws
  164     .With means for lateral adjustment of jaw portions
  165     .Means for direct manual adjustment of jaw(s)
  166     ..With cant type adjustment lock
  167     ...Including separate cant member
  168     ....Means for skewing plural members to actuate jaw(s)
  169     ....Plus additional means to release cant lock
  170     .....With means to bias member into locked position
  171     ...Including interlocking abutting surfaces
  171.5   ...With tooth-like surface engaging a planar surface
  172     ..With relative axial shift of screw-nut actuating means
  173     ...Split nut type
  174     ....With separate means for lateral motion of segments
  175     .....Including weight biased lever
  176     .....Common to spaced parallel screw means
  177     .....Control travels with screw
  178     ....With screw mounted means for lateral segment motion
  179     ...With longitudinally rockable actuating screw
  180     ....Direct hand tilt
  181     ...Half nut type
  182     ....With separate means for lateral nut-screw motion
  183     .....With pedal means
  184     ...Interrupted thread type
  185     ....Antipodal screw thread sectors
  186     ....Rack-like nut thread sector
  187     ....With continuous screw thread
  188     ..With common means to both lock and actuate jaw(s)
  189     ...Screw-nut type
  190     ....With wedge means in the lock mechanism
  191     .....Roll or ball gripping element
  192     .....With pawl-rack immobilization means
  193     ......Pivotal or rockable pawl
  194     ....Pawl-rack adjustment lock
  195     .....To immobilize nut
  196     ...Cam or eccentric type
  197     ....Plural cams in series
  198     ....Cam in series with diverse actuator
  199     ....Plural cam surfaces
  200     ....Including radial face and/or axial follower feature(s)
  201     ...Toggle type
  202     ...Rack-pinion sector
  203     ..With clamp (or friction) type adjustment-lock
  204     ...Pivoted eccentric for applying lock
  205     ...Plus additional means to release lock
  206     ...Deformable elastic plug gripping element
  207     ..With detent type adjustment-lock
  208     ...Peg-hole
  209     ....For pivoted jaw
  210     ...Movable rack
  211     ...Pin-rack
  212     ...Pawl-rack
  213     ....Detent positionable by rocking of screw actuator
  214     ....With lever type actuator acting through pawl
  215     ....Spring urged pawll
  216     .Means to actuate jaw(s) (i.e., apply holding force)
  217     ..Work camming or wedging action type
  218     ..With common means for each of coacting jaws
  219     ...Spaced parallel screw means
  220     ....With specific means for angular positioning of jaws
  221     ..Plural means for one jaw
  222     ...Plural intergeared screw-nut actuating means
  223     ...Including means to move nut
  224     ..With yieldable means in actuation train
  225     ..Gear type
  226     ...Worm
  227     ...Rack and pinion
  228     ..Toggle type
  229     ..Cam, eccentric or wedge type
  230     ...With position latch
  231     ...Cam surface is jaw face
  232     ...Including radial face and/or axial follower feature
  233     ...Including cam slot or groove
  234     ...Slidable wedge
  235     ...Eccentric cylinder or disc
  236     ...Cam on end pivoted hand lever
  237     ..For pivoted jaw(s)
  238     ...First class lever action type
  239     ...Third class lever action type
  240     ..Screw-nut type
  241     ...Differentially threaded
  242     ...Right and left threaded
  243     ...Rotating nut means
  244     ...Screw held at ends for rotation only
  245     ...With means for relative rotation of elements
  246     ...Screw travels with jaw
  247     ....Screw within traveling box-beam guide
  248     ....With separable or replaceable nut means
  249     ....C-clamp type
  250     ....Means to keep faces parallel and/or translate jaw
  251     .....Flange and/or slot
  252     .....Traveling means parallel to screw
  253     ......Plural traveling elements coplanar with screw
  254 R   ..Bias type (e.g., weight, spring, resilience)
  254 DF  ...Dental flask
  254 D   ...Drawing board
  254 CS  ...Coil spring
  254 MW  ...Movable weighted member
  256     .With paralleling mechanism for jaws
  257     .Jaw features
  258     ..Angularly alignable
  259     ...Attachments and/or inserts
  260     ....With hook type fastener means
  261     ....With socket type fastener means
  262     ....With threaded type fastener means
  263     ....With yieldable type fastener means
  264     ....Loosely positioned between coacting jaws
  265     ..Plural spaced work contacting portions
  266     ...Settable elements conformable to work contour
  267     ...With pressure equalizing means
  268     ...Angular and/or curved jaw face
  269     ....Opposed jaw faces diversely shaped
  270     ....Complementary to work configurationn
  271     ..Attachment(s) and/or insert(s)
  272     ...Interdigitated
  273     ...Named material
  274     ....Nonmetallic
  275     ...Yieldable element
  276     ...With magnetic fastening means
  277     ...Coacting elements loosely positioned between jaws
  278     ....Elements jointed by a pivot or link
  279     ...Selective
  280     ....By substitution
  281     .....With yieldable type fastener means
  282     .....With threaded type fastener means
  283     .....With socket type fastener means
  284     .....With detent type fastener means
  285     .Specific means for wear, strain, protection, assembly
  286     .Specific material(s) used for holder
  287     HOLDER ENCLOSES WORK
  288     .With tool couple element
  289 R   WORK-UNDERLYING SUPPORT
  290     .With tool couple element
  291     ..With work-stop abutment
  292     ..Element projectable through support
  293     ..In support surface
  294     ...Cylindrical element
  295     ...Guiding slot for horizontally moving tool
  296     .Gapped support
  297     ..With movable work-stop abutment
  298     ...Abutment movable in gap
  299     ....Plural separately mounted slidable abutments
  300     ....With abutment position indicator
  301     ....With abutment lock
  302     ..Enclosed gap
  302.1   .Mixing or kneading board
  303     .With work-stop abutment
  304     ..Attached to movable support portion
  305     ..Multiple direction restrainer
  306     ..Suspended abutment
  307     .With sight gage
  308     .With work supply supporting means
  309     .Support mounting means
  310     ..Support resiliently urged upwardly
  311     ..Means to hold plural support blocks
  312     ...By through rod
  313     ....Blocks enclosed by holder
  314     ...Blocks enclosed by holder
  289 MR  .Movable roller
  315     WORK-STOP ABUTMENT
  316     .Vertically compressible abutment
  317     .Resiliently urged abutment
  318     .Abutment mounted between spaced parallel arms
  319     .Plural spaced abutment surfaces
  320     .With motor drive abutment moving means
  329     MISCELLANEOUS
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  900     SUPPORTING STRUCTURE HAVING WORK HOLDER RECEIVING APERTURES OR
           PROJECTIONSS
  901     COLLAPSIBLE OR FOLDABLE WORK HOLDER SUPPORTING STRUCTURE
  902     WORK HOLDER MEMBER WITH V-SHAPED NOTCH OR GROOVE
  903     WORK HOLDER FOR ELECTRICAL CIRCUIT ASSEMBLAGES OR WIRING
           SYSTEMS
  904     WORK HOLDER FOR POSITIONING ELEMENTS OF BUILDING IN INSTALLED
           LOCATION
  905     WORK HOLDER FOR DOORS AND DOOR FRAMES
  906     WORK HOLDER FOR SKIS
  907     WORK HOLDER FOR FISHING FLIES
  908     WORK HOLDER FOR CATHODE-RAY TUBES
  909     WORK HOLDER FOR SPECIFIC WORK
  910     WORK HOLDER FOR PREFABRICATED ROOF TRUSS OR WALL FRAME