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: 384
 Class Title: BEARINGS

Subclass  Subclass
Number    Title

  1       VIBRATORY (E.G., PIEZOELECTRIC OR KINETIC BEARING
  2       NONJOINT, NONROTATING FULCRUM BEARING
  3       .Knife-edge fulcrum
  4       ..Edges up and down
  5       ..Edge up
  6       ..Edge down
  7       LINEAR BEARING
  8       .With detection, nonbearing magnetic or hydraulic feature
  9       .With temperature, electrical, or orthogonal feature
  10      .Tensioned or resilient race or roller member
  11      .For crosshead
  12      .Fluid bearing
  13      .Lubricating
  14      ..Bearing for valve stem
  15      .Combined with seal or guard
  16      ..Annular
  17      .For exetension table
  18      .Ball bearing for drawer
  19      .Roller bearing for drawer
  20      .Plain bearing for drawer
  21      ..Stop, detent, or lock
  22      ..Anchoring or aligning means
  23      ..Specified race structure or material
  24      .Having relatively movable parts for latera insertion and
            retention of shaft
  25      .Combined plain and antifriction
  26      .Plain bearings
  27      ..For flush tank
  28      ..For valve stem
  29      ..Cylindrical outer race
  30      ...For die set or stamping mill shaft
  31      ...For hand-held drill shaft
  32      ...For piston rod
  33      ..For elevator
  34      ..For seat
  35      ..More than two telescoping members
  36      ..For structural installation
  37      ..Resilient supporting member
  38      ..Self-aligning
  39      ..Gib
  40      ..With adjustment means
  41      ..Assembling means
  42      ..Specified pad, liner, wear plate or race structure; bearing
             material
  43      .Recirculating
  44      ..Roller
  45      ..No cylindrical race
  46      .Roller bearing for extensive cylinder
  47      .Alternating roller; or antifriction bearing for auto seat
  48      .Combined ball and roller bearings
  49      .Ball bearing
  50      .Roller bearingg
  51      ..Cage configuration
  52      ..Cylindrical inner or outer track
  53      ..Location of plural roller sets; more than two telescoping
             members
  54      ..Resilient member
  55      ..Raceway configuration
  56      ..Nonaxle supported roller structure
  57      ..Adjustment or self-alignment means
  58      ..Roller-on-axle bearing
  59      ..Assembling means
  91      ROTARY BEARING
  92      .Roller drill bit
  93      ..Lubricating detail
  94      ..Seal detail
  95      ..Inserts or bearing surface detail
  96      ..Roller cone retaining means
  97      .Water lubricated propellor shaft or well shaft
  98      ..With elongated strips or staves
  99      .Hydraulic or pneumatic bearing support
  100     .Fluid bearing
  101     ..With antifriction bearing
  102     ...Backup
  103     ..Flexible member
  104     ...Plural ends fixed
  105     ...Thrust bearing
  106     ...Auxiliary resilient support
  107     ..Radial and thrust
  108     ...Spherical
  109     ....Gas bearing
  110     ...Conical
  111     ...Outer recess forming fluid pad
  112     ...Grooved thrust bearing surface
  113     ...Central member recess
  114     ..Radial
  115     ...Shaft recess
  116     ...Half-circular or less outer member
  117     ...Pivoted fluid pad
  118     ...Outer recess forming fluid pad
  119     ...Resilient mounting member or seal
  120     ...Circumferential groove in outer member
  121     ..Thrust
  122     ...Pivoted fluid pad
  123     ...Grooved bearing surface
  124     ...Resilient mounting member or seal
  125     .Resilient bearing surface
  126     .Plural bearings one plain and one antifriction
  127     ..Roller
  128     ...Tapered roller
  129     .Plain bearing
  130     ..With specified seal
  131     ...Fluid actuated
  132     ...Fluid barrier
  133     ....Magnetic fluid
  134     ....Gas
  135     ...Centrifugal
  136     ....With wick
  137     ...And scraper
  138     ...Unitary bearing and seall
  139     ...Relatively rotatable radially contracting
  140     ....Flexible sealing member
  141     ....Diaphragm
  142     ....Axially translatable member rotatable with shaft
  143     ....Plural seals
  144     ...Labyrinth
  145     ...Arcuate bearing surface
  146     ....Axially spaced lip
  147     ...Lip seal
  148     ....With radially acting bias means
  149     ...Radially contained packing with axially acting follower
  150     ...Mechanically actuated
  151     ...Resilient sealing surface
  152     ....O-rings
  153     ....Elastomeric
  154     ..Rocking type bearing
  155     ...Lubricated
  156     ...Movable pivot axis
  157     ..For plow or colter disk
  158     ..Railway car journal
  158.1   ...With resilient mounting member
  159     ...With guard or seal
  160     ...Lubricating
  161     ....For thrust bearing
  162     ....For brass bearing
  163     .....Reservoir fed
  164     ......Capillary
  165     ....With lower reservoir
  166     .....Journal operated feed
  167     ......Band
  168     ......Centrifugal
  169     ......Pump
  170     .....Capillary
  171     ......With wick biasing means
  172     .......Metal spring
  173     ........Coil spring
  174     .......Rubber
  175     ......With capillary material retainer
  176     .......Integral with box
  177     .....Including roller applicator
  178     ......Yeildably supported
  179     .......Coil spring
  180     ........Spring under compression
  181     ....Wick structure
  182     ...Sheet metal journal box
  183     ...With journal retainer and guide
  184     ....Lateral guide
  185     .....Mounting feature
  186     ......Resilient
  187     ...Interior
  188     ...Includes thrust bearing
  189     ...Lid
  190     ....Mounted for swinging
  190.1   .....About pivot at right angle to plane of lid
  190.2   .....Spring and cam biased open
  190.3   ......With roller
  190.4   .....Spring biased closed
  190.5   ....Slidingg
  190.6   ....Lid structure
  190.7   .....With latch
  191     ...Brasses
  191.1   ....Self aligning
  191.2   ....Bearing surface liner or inserts
  191.3   ....Assembling means
  191.4   ....Mounting structure
  192     ..Self-adjusting or self-aligning
  193     ...For vertical shaft
  194     ....With lower thrust and upper radial bearing
  195     ....Oscillatory suspension
  196     .....Resiliently centered
  197     ....Oscillating thrust bearing
  198     .....Resiliently centered
  199     ....Shaft balancing means
  200     .....Resiliency on radial bearing
  201     ....Having body and spindle connector
  202     ...Resilient
  203     ....Ball and socket
  204     .....For electric motor
  205     ...Fixed pivot axis
  206     ...Ball and socket
  207     ....Sheet metal socket
  208     ....Assembly
  209     .....Separable ball retaining member
  210     ......Lock ring
  211     .....Of ball
  212     ......Sectional
  213     ....With lubricating means
  214     .....Having felt or wick
  215     ..With resilient mounting member
  216     ...For connecting rod
  217     ...Lock type
  223     ...For thrust bearing
  224     ....Pivoted pad
  225     ....Helical coil spring
  218     ...Coil spring
  219     ....Biased bearing surface segment
  220     ...Nonmetallic
  221     ....Laminated
  222     ....Cylindrical
  226     ..For vertical shaft
  227     ...Spinning spindle
  228     ....With thrust and radial bearing
  229     .....Adjustable spindle
  230     .....Laterally resilient
  231     ......Resilient sleeve
  232     ......Volute coil spring
  233     ......Helical coil spring
  234     ......Fluid damping
  235     ......Rubber
  236     .......At fixed end
  237     .....With interior dead shaft
  238     .....Pivoting spindle
  239     ....Bolster type bearing
  240     ....Lower end thrust bearing
  241     ....With lubricating means
  242     ...Base supported table or drumm
  243     ...Lower end thrust bearing
  244     ....For shaped shaft end
  245     .....Spherical shaft end
  246     .....Conical shaft end
  247     ..With adjustment means
  248     ...For thrust bearing
  249     ....Threaded member moves axially
  250     ....For crankshaft
  251     ....For thrust plate
  252     ...And support
  253     ....Simultaneous adjustment
  254     ....For horse power or sand reel
  255     ....Eccentric
  256     ....For roller end support
  257     ....For suspended shaft
  258     .....Screw adjustment
  259     ......Horizontal and vertical
  260     ....Rectilinear
  261     ...Bearing surface
  262     ....For axle
  263     ....Adjustable bearing surface segment
  264     .....Axial adjustment
  265     .....Axially spaced annular segments
  266     .....Two opposed bearing surface segments
  267     ......With wedge adjustment
  268     .......For connecting rod
  269     ........Transverse screw adjustment
  270     ......For connecting rod
  271     ....Tapered sleeve
  272     .....Split
  273     ....Split sleeve
  274     ....Pressure applying
  275     ..Radial collar and sleeve
  276     ..Specified sleeve or liner
  277     ...Insulating
  278     ...Temperature compensating
  279     ...Porous metal
  280     ...Liner on shaft
  281     ....Removably secured
  282     ...Bearing surface insert
  283     ....Groove
  284     ....Pocket array
  285     .....Circular pocket
  286     ...Lubricant distributing
  287     ....High speed
  288     ....For crankshift
  289     ....For rotary member
  290     .....Outer sleeve on shaft
  291     ....Groove
  292     .....Helical or herring bone
  293     ....Pocket array
  294     ...For crankshaft
  295     ...Mounting feature
  296     ....Radial protrusion or sleeve end flange
  297     ...Nonmetal
  298     ....Fabric layer and capillary passages
  299     ....Nylon
  300     ....Polytetrafluorethylene (e.g., Teflon*))
  301     ...Spirally split
  302     ..Distributed weight
  303     ...For thrust bearing
  304     ....Tandem thrust
  305     ....Grooved
  306     ....Pivoted pad
  307     .....With lubricating means
  308     .....Pad mounting structure
  309     ...Pivoted pad
  310     ....Noncircumferential
  311     ....Lubricant supply structure
  312     ....Pad mounting structure
  313     ..Cooling by lubricant
  314     ...Emergency lubrication
  315     ...Water lubrication
  316     ...Fluid path
  317     ..Specified cooling means
  318     ...Mist
  319     ...Frozen lubricant
  320     ...Nonliquid cooling
  321     ...Coolant path
  322     ..Lubricating
  368     ...For thrust bearing
  369     ....Forced feed
  370     ....Capillary
  371     ....For bearing at end of shaft
  372     ...Fixed shaft
  373     ....Forced feed
  374     ....Yoke reservoir
  375     ....Shaft-supported reservoir
  376     .....At end of shaft
  377     ....Specified external feed
  378     .....Spiral groove
  379     .....Capillary
  380     ....Internal feed
  381     .....Internal reservoir
  382     ......Capillary
  383     .....Capillary
  384     ....Clearer and agitator
  385     ...Reservoir in rotating member
  386     ....Removable reservoir
  387     ....Capillary
  388     ....With feed regulator
  389     ....Feed to shaft end and center
  390     ....End feed
  391     ....Center feed
  392     ....Including distributing means
  393     ....Including inward deflector
  394     ....Including rotary blade
  395     ....With agitator
  396     ...Bolt type shaft
  397     ...For rotary shaft
  398     ....Forced feed
  399     .....Lubricant metering structure
  400     ....Reservoir external to bearing
  401     ....Upper reservoir for horizontal shaft
  402     .....Capillary
  403     ....Lower reservoir for horizontal shaftt
  404     .....Shaft operated elevating means
  405     ......Band or chain
  406     .......Ring type
  407     ......Roller or ball
  408     .....Capillary
  409     ......With wick biasing means
  410     .....With wick retainer
  411     ......Differing capillary properties
  412     ......With lubricant impelling means
  413     ......Wick structure
  414     .....Suction or pressure
  415     ....For vertical shaft
  416     ..for rotary member
  417     ...Pulley
  418     ...Roller
  419     ....Elongated
  420     ..Thrust bearing
  421     ...For pivot of towed vehicle
  422     ...For pivot of vehicle wheel frame
  423     ...For railway car side
  424     ...Axially spaced collars
  425     ...Including thrust plate at shaft end
  426     ....Plural end plates
  427     ....Axially related hub liner
  428     ..Mounting or support
  429     ...For crankshaft
  430     ....Connecting rod
  431     ....Pedal type crank
  432     ....Block and cap type
  433     .....Engine housing closure
  434     ...Block and cap type
  435     ...Lock type
  436     ....Pivoted
  437     .....Having bolt securing means
  438     ...Machine housing
  439     ...Mounted in wall aperture
  440     ...Bearing surface integral with support
  441     ...Annular support
  442     ...Single direction
  443     ....From above
  444     ....From below
  445     .Antifriction bearing
  446     ..Nonbearing magnetic feature
  447     ..Elliptical, eccentric, alternating roller, or mass ball
             features; compensating for nonthermal deformation; centrifugal
             preload
  448     ..Sensor or inspection features; liquid metal or shipping
             protection features; bearing member integral with seal
  449     ..Outer race integral with wheel
  450     ..Skew prevention; formular relationship
  451     ..Recirculating or nonannular path
  452     ..Radial bearing with separate thrust bearing; radial
             ball-thrust roller
  453     ...Radial ball-thrust ball
  454     ...Radial roller-thrust ball
  455     ...Radial roller-thrust roller
  456     ..Radial bearing
  457     ...For crankshaftt
  458     ....For pedal crank
  459     ...Railway car journal
  460     ...Disk plow
  461     ...Concentric
  462     ...Lubricating
  463     ....Solid lubricant feature
  464     ....Dipping, surface treatment or member versus lubricant
               density
  465     ....Centrifugal feature
  466     ....Jet, baffle or valve
  467     ....Cooling by lubricant
  468     ....Oil mist feature
  469     ....Porous or wick structure
  470     ....Cage structure
  471     ....With pressure or suction means
  472     ....Impeller
  473     ....Reservoir, filter or lubrication circuit structure
  474     ....Lubrication port
  475     .....In race
  476     ...With cooling, heating or insulating
  477     ...With specified seal
  478     ....Centrifugal loading or slinging; fluid seal
  479     ....Pressure establishing or loading
  480     ....Labyrinth
  481     ....Relatively rotatable radially contacting
  482     .....Resilient sliding surface material
  483     ....Radially contained packing with axially acting follower
  484     ....Lip seal
  485     .....Radially outward lip
  486     .....Plural lips
  487     ....Radially opening U-shaped retainer
  488     ....Flange small clearance
  489     ....O-ring or end cap seal
  490     ...Ball bearing
  491     ....Ball structure
  492     ....Ball or race composition or material
  493     ....Temperature compensation
  494     ....Ball and roller bearings
  495     ....Self-aligning
  496     .....Ball to larger spherical surface
  497     ......Radially outer larger spherical surface
  498     .....Conforming spherical surfaces
  499     ....Split race
  500     .....With race adjustment means
  501     .....Double split
  502     .....Split ring
  503     ......Fractured split
  504     .....Plural rows balls
  505     .....One race only split
  506     ......Inner race split
  507     ....Slot for ball insertion
  508     .....With means for blocking slot
  509     ......Blocking by cage
  510     ....Specified means facilitating assembly or disassembly
  511     .....Annular opening for ball insertion
  512     ....Plural axially spaced balls with integral race
  513     ....Specified bearing race structure
  514     .....Strictly conical contact surfacee
  515     .....Including radial race flange
  516     .....Ball groove surface detail
  517     ....Axially biased race
  518     .....Coil spring
  519     ....Adjustment means
  520     ....Discrete spacing member
  521     .....Ball spacer
  522     .....Roller spacer
  523     ....Cage structure
  524     .....Including antifriction members
  525     .....Wire cage
  526     .....Resilient feature
  527     .....Material, composition or laminate
  528     .....Fully circular aperture for ball
  529     ......Two circular apertures per ball
  530     ......Plural elements joined to form an aperture
  531     .....U- or C-shaped slot
  532     ......Unitary uniform strip
  533     .....Entirely noncircular or nonconforming pocket
  534     .....Unitary member
  535     ....Resilient support member
  536     .....Elastomer or plastic
  537     ....Assembling means
  538     .....Wedge means
  539     .....Snap means
  540     .....Threaded sleeve
  541     .....Radial set screw
  542     .....Bolt
  543     ....Fixed shaft and rotating outer member
  544     .....For hub
  545     ......For bicycle hub
  546     .....Outermost member cylindrical
  547     .....Outermost member grooved
  548     ...Roller bearing
  549     ....Fixed supporting roller
  550     ....Toothed
  551     ....Discrete circumferential or axial spacer
  552     .....Spaced by balls
  553     .....Spaced by rollers
  554     ......With associated rings
  555     ......Mating grooves and projections
  556     ....Hydraulic axial jacking
  557     ....Temperature compensation
  558     ....Self-aligning
  559     ....Means facilitating assembly or disassembly
  560     .....By cage or race structure
  561     .....By groove and ring
  562     .....By threaded member
  563     ....Axially biased race or roller
  564     ....Race end structure
  565     ....Roller structure
  566     .....Helical feature
  567     .....Hollow
  568     .....Curved roller
  569     ....Race, liner or sleeve
  570     .....Split ring
  571     .....Tapered race
  572     ....Cage structuree
  573     .....Wire, filament, segmented or surface treated
  574     .....Projecting into or through roller
  575     .....Uniform sheet metal
  576     .....Nonmetallic
  577     .....Split ring or open slot
  578     .....Nonunitary
  579     ......Bolted, welded or with spring
  580     .....Lip on transverse bar
  581     ....Resilient support member
  582     .....Elastomer or plastic
  583     ....With adjustment means
  584     ....Assembling means
  585     .....Race fastening means
  586     ....Fixed shaft and rotating outer member
  587     .....Outermost element cylindrical
  588     .....Outermost element grooved
  589     .....For hub
  590     ..Thrust bearing
  591     ...Vehicle center
  592     ....Ball
  593     ....Roller
  594     ...Railway truck center bearing
  595     ...Railway truck side bearing
  596     ....Ball
  597     ....Roller
  598     .....Toothed
  599     .....With self-adjustment means
  600     .....Assembling means
  601     .....Contaminent elimination; adjustment means
  602     ......Adjustment by shim
  603     ...Spinning spindle
  604     ...Different size rolling elements; spacers; noncircular array
  605     ...Temperature compensation
  606     ...Lubricating
  607     ...Seals
  608     ...Concentric rolling members
  609     ...Ball bearing
  610     ....Single ball
  611     ....Resilient feature
  612     ....Self-aligning
  613     ....Plural rows balls or tandem thrust
  614     ....Cage structure
  615     ....Race structure
  616     ....Adjustment means
  617     ....Assembling means
  618     ...Roller bearing
  619     ....Roller structure or orientation; plural axially spaced rows
               or tandem thrust
  620     ....Resilient feature; adjustment or self-alignment means;
               assembling means
  621     ....Race and cage structure
  622     ....Race structure
  623     ....Cage structure
  624     BEARING SAFETY OR SELF-CLEANING MEANS
  625     BEARING-SURFACE TREATMENT
  626     SHIM FOR BEARING
  627     MISCELLANEOUS
  *       *******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  900     .Cooling or heating
  901     .Floating bushing
  902     .Porous member
  903     .Retaining ring
  904     .Propeller shaft outer bearing
  905     .Temperature compensation
  905.1   .Cup-shaped bearing
  906     .Antirotation key
  907     .Bearing material or solid lubricant
  907.1   ..Jewel, glass, ceramic or carbon
  910     ..Powders
  911     ..Including fiber
  908     ..Nylon or polytetrafluorethylene
  909     ..Plastic
  912     ..Metallic
  913     ..Metallic compounds