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: 403
 Class Title: JOINTS AND CONNECTIONS

Subclass  Subclass
Number    Title

  1       SELECTIVELY ENGAGEABLE HUB TO SHAFT CONNECTION
  2       INCLUDING FRANGIBLE COMPONENT
  3       SELECTIVELY ASSEMBLED, E.G., CONVERTIBLE, ETC.
  4       .Selective orientation
  5       INFLATABLE CONNECTOR
  6       WITH OPENING FOR ACCESS TO CONNECTOR OR OPERATOR
  7       .To threaded component
  8       ..Transverse to thread axis
  9       .To biased component
  10      CLOSURE OR PLUG SPACED FROM JOINT
  11      WITH ADJUNCTIVE PROTECTOR, BROKEN PARTS RETAINER, REPAIR,
           ASSEMBLY OR DISASSEMBLY FEATURE
  12      .Holding means or protector functioning only during
            transportation, assembly or disassembly
  13      .Position or guide means
  14      ..Related to joint component
  15      .Utilizing fluid pressure
  16      .Back-off means, e.g., separator, etc.
  17      .Handle or handwheel
  18      ..Actuates retainer or blocker
  19      .Tool-engaging or accommodating means or with tool
  20      ..For latch or retainer
  21      .Releasably captive nut or bolt
  22      .Means to lock bolt or nut when other is turned
  23      WITH ADJUNCTIVE SHIELD
  24      STRUCTURALLY INSTALLED IN DIVERSE ART DEVICE
  25      .Head or base
  26      COUPLING SUPPORTED BY INDEPENDENT BEARING
  27      WITH INDICATOR OR INSPECTION MEANS
  28      UTILIZING THERMAL CHARACTERISTIC, E.G., EXPANSION OR
           CONTRACTION, ETC.
  29      .Interposed material of intermediate coefficient of expansion
  30      .Members having different coefficients of expansion
  31      WITH FLUID PRESSURE RESPONSIVE COMPONENT
  32      WITH AMBIENT CONDITION RESPONSIVE CONTROL MEANS
  33      WITH INDEPENDENT HANDLE OR OPERATOR
  34      WITH DISTINCT FLUID OR ARTICLE HANDLING OR DIRECTING FEATURE
  35      .External reservoir
  36      .Pressure fitting
  37      .Including port or reservoir communicating with joint
  38      ..Articulated member
  39      ...At joint interface
  40      NON-ADHERING FLUENT MATERIAL AT JOINT
  41      WITH STRAIN-LIMITING MEANS
  42      COMBINED
  43      ROTARILY CONNECTED, DIFFERENTIALLY TRANSLATABLE MEMBERS, E.G.,
           TURN-BUCKLE, ETC.
  44      .Having tool-engaging means or operating handle
  45      .Having operating mechanism
  46      .Having locking means
  47      .Differential pitch, similar hand
  48      .Externally threaded actuatorr
  49      LATERALLY RELATED MEMBERS CONNECTED BY LATCH MEANS
  50      FLEXIBLE DIAPHRAGM OR BELLOWS
  51      .With additional connection or packing
  52      ARTICULATED MEMBERS
  53      .Plural distinct articulation axes
  54      ..Three or more parallel axes
  55      ..Single adjustment for plural axes
  56      ..Plural ball and socket
  57      ..Universal
  58      ...Non-coplanar axes
  59      ..Angular and linear
  60      ...Screw and swivel
  61      ...Pivot stud slidable in elongated opening
  62      ..Parallel rotary
  63      ..Plural translating connections
  64      .Branched
  65      .Member pivoted at rigid corner
  66      .Including static joint
  67      ..Trunnion assembly to side of rod
  68      ..One member is plate or side
  69      ...Secant, i.e., rod extending through plate
  70      ...Plate or side forms bearing surface
  71      ...Bearing component clamped to plate or side, e.g., bolted,
              etc.
  72      ..Articulate joint intermediate end joints
  73      ...Variable angle
  74      ....Universal
  75      ..Angled or offset members
  76      ..Articulate joint is ball and socket
  77      ...With threaded joint
  78      ..Articulate joint is a swivel
  79      ..Articulate joint comprises pivoted clevis or channel bar
  80      ..Articulate joint is a slide
  81      .Including operator
  82      .Arcuate shank moves in complementary guide
  83      .Lockable at fixed position
  84      ..At selected angle
  85      ...Movable brace between members
  86      ...Members rotatable about oblique axes
  87      ...Clamping screw traverses sliding complementary arcuate
              bearing surfaces
  88      ...Securing yoke or ring spaced radially from locking means
  89      ....Eyebolt
  90      ...Ball and socket
  91      ...Including pivot stud
  92      ....Including radially spaced detent or latch component
  93      .....Engaging notch or recess in outer periphery of component
  94      .....Side of rod engages recess in radial face
  95      .....Pivoted detent
  96      .....Engaging recess in radial face
  97      ....Including radial interengaging tongue and slot or
               serrations
  98      ....Radially spaced arcuate slot engages fastener
  99      ....Locked by plural motions of one member
  100     ....Including bridging keeper
  101     ....Locked by nesting parts
  102     ....Members locked in axial alignment
  103     ...Plural distinct positionss
  104     ..Plural distinct positions
  105     ...Unidirectional movement, e.g., ratchet, etc.
  106     ...At least one discrete position
  107     ....Step-by-step adjustment
  108     .....Retainer extends through aligned recesses
  109     ..Telescoping members
  110     ..Clamped members
  111     .Rotatable members resiliently biased to one position
  112     .Including limit means
  113     ..For pivotal motion
  114     ...Ball and socket with restricted movement about one axis
  115     ....Ball stud passes through confining opening
  116     ...Pin and slot
  117     ...Opposed stops on one member
  118     .Threaded interface
  119     .Pivoted
  120     ..Including circumferential biasing or damping means
  121     ..Rocking or rolling contact
  122     ..Universal ball and socket
  123     ...Including internal tie means
  124     ...Plural concave surfaces with diverse curvature
  125     ....Interposed concavo-convex component
  126     ....Outer surfaces
  127     ...Swiveled ball parts or seat
  128     ...Composite ball
  129     ....Spring biased segments
  130     ....Nonmetallic part
  131     ....Stud extends into ball
  132     ...Elastomerically biased or backed components
  133     ...Elastomeric seat
  134     ...Externally packed
  135     ...Including liner, shim, or discrete seat
  136     ....Spring acts through wedging surfaces
  137     ....Variably preloaded
  138     ....Spring-biased seat opposite ball stud
  139     ....Porous
  140     ....Completely spacing the members
  141     ...Divided socket-type coupling
  142     ...Bifurcated socket
  143     ...Separable socket sections
  144     ...Spring-biased
  145     ..Including tension or take-up means
  146     ...Interposed spring means coaxial with pivot
  147     ...Acting through tapered surface on bearing component
  148     ...Manually variable
  149     ...External of bearing assembly, e.g., antirattler, etc.
  150     ..T-pivot, e.g., wrist pin, etc.
  151     ...Floating pin
  152     ...Pin is integral with or secured to inner member
  153     ...Expanded pin or end
  154     ...Including distinct pin retainer
  155     ....Unitary clip or plug
  156     ....Threaded pin end
  157     ...Fork and tongue
  158     ....With interposed antifriction means
  159     ....Oppositely laterally movable tines
  160     ..On oblique interface
  161     ..Transverse pin or studd
  162     ...Traverses interposed facing component
  163     ...Attached to or integral with one member
  164     .Rotatable
  165     ..Rod in socket
  166     .Axially spring-biased coaxial members
  167     TRANSVERSE ROD TO SPACED PLATE SURFACES
  168     .Retainer utilizes or abuts plural plates
  169     BRANCHED
  170     .Three or more radiating members
  171     ..Polyhedral
  172     ...Unilateral of plane
  173     ..Plural pairs of axially aligned members
  174     ..Coplanar
  175     ...Additional rod held by encompassing means
  176     .Polyhedral
  177     .Parallel rods
  178     .Coplanar
  179     DIVERSE MATERIAL COUPLING MEMBER
  180     THREE OR MORE SERIAL JOINTS, AT LEAST ONE DIVERSE
  181     .Nonaligned axes
  182     .Separable intermediate joint
  183     ..Axially acting connector
  184     ..Screw or cam
  185     JOINT INVOLVING PLURAL LAYERS OF SINGLE ROD
  186     LATERALLY RELATED RODS INDEPENDENTLY JOINED TO TRANSVERSE
           SURFACE
  187     ROD TO MEMBER TO SIDE, E.G., PLATE, ROD SIDE, ETC.
  188     .Rod side to member to side
  189     .Unilateral of side
  190     .Arcuate or multiplanar side
  191     ..Encompassed side
  192     .Intermediate member includes tubular part
  193     ..Side or tubular part deformed in situ
  194     ..Intermediate member extends through side
  195     ...Split or divided tubular part and coacting compressor
  196     ...Transverse clamp secures rod and tubular part
  197     ...Rod also extends through side
  198     ..Oblique rod
  199     ..Intermediate member secured to side by radial flange
  200     ..Internally threaded tubular part
  201     .Intermediate member extends completely through side
  202     RADIALLY SPACED MEMBERS JOINED BY INDEPENDENT COUPLING
  203     .Flexible intermediate member
  204     COACTING CONNECTION BETWEEN INNER MEMBER AND PLURAL PARTS OF
           OUTER MEMBER
  205     RIGID ANGLE COUPLING, E.G., ELBOW OR U, ETC.
  206     AXIALLY CURVED OR BENT PORTION OF ROD IS JOINT COMPONENT
  207     .Interfitted crossing rods
  208     .Joined to laterally related transverse surface at axially
            spaced points
  209     .Reversely bent portion
  210     ..Around eye-forming thimble
  211     ..With wedge clamp
  212     ..Held by crimped collar
  213     ..Open U
  214     .Intertwisted ends
  215     .End of rod is deflected laterally within connector
  216     .Plural rods distorted by single componentt
  217     THREE OR MORE MEMBERS CONNECTED AT SINGLE LOCUS
  218     .All encompassed
  219     .Mutually contacting
  220     FLEXIBLY CONNECTED RIGID MEMBERS
  221     .Rigid sleeve encompasses flexible bushing
  222     ..Longitudinally divided sleeve
  223     .Flexible sleeve-type coupling
  224     .Connecting pin traverses radially interposed elastomer
  225     .Elastomer interposed between radially spaced members
  226     ..Elastomer encompasses shoulder on inner member
  227     ..Including axially acting compressing means
  228     ..Composite bushing with elastomeric component
  229     .Helical spring type coupling
  230     ROD END TO TRANSVERSE SIDE OF MEMBER
  231     .Corner joint
  232.1   .Stirrup
  233     .Structure attached to rod end encompasses side
  234     ..Clamped saddle
  235     ..Yoke or ring
  236     ...Having radial screw at bight
  237     .Including saddle
  238     .Gland type
  239     ..Rod and side gripped simultaneously by single actuation
  240     .Rod clamped to hole edge
  241     .Rod to open edge of side, e.g., wrap-around connection
  242     .Rod and side deformingly interlocked
  243     .Radially interposed, side-engaging shim or bushing
  244     .Socket formed by shaping or deforming side
  245     .Integral transverse projection on side, e.g., necked, etc.
  246     ..From rod side
  247     .Utilizing opposite sides of member
  248     ..Rod is expanded by component inserted from distal side
  249     ...Separate and deformable component
  250     ...Plural contacting components
  251     ...Barbed component
  252     ..Inserted, blind-side-engaging, retaining portion on rod
  253     ..Stepped or tapered recess in side
  254     ...Terminal, rod-attached retainer engages distal side
  255     ....Inserted into rod
  256     ..Clamped member
  257     ...Clamping component engages recessed side
  258     ...Bolted to rod
  259     ...Between rod shoulder and terminal nut
  260     ...Bolted through member
  261     ...Coaxial collar or shoulder or rod is clamp element
  262     .Flange on rod bolted to side
  263     .Rod received in recessed side, e.g., socket or tapered opening,
            etc.
  264     .Utilizing internal rod structure
  265     MOLDED JOINT
  266     .And independent connection
  267     .Including mechanical interlock
  268     .Socket or open cup for bonding material
  269     .Member cast in situ
  270     .Fusion bond, e.g., weld, etc.
  271     ..Metallic fusion material
  272     ...Added bonding material, e.g., solder, braze, etc.
  273     SHRUNK FITT
  274     MEMBER DEFORMED IN SITU
  275     .Separating element between strands of member
  276     .Interposed deforming element contacts socket bottom
  277     .Inner member is expanded by longitudinally inserted element
  278     .By separate, deformable element
  279     .Deformation occurs simultaneously with action of separate,
            diverse function, joint component
  280     .Deforming component is inserted section
  281     .Separate deforming means remains with joint assembly
  282     .Deformation occurs simultaneously with assembly
  283     .By piercing
  284     .Diverse resistance to lateral deforming force
  285     .Both members deformed
  286     BRIDGED BY DIVERSE CONNECTOR
  287     INCLUDING SPACED, DIVERSE CONNECTIONS
  288     INCLUDING DISTINCT PACKING
  289     SPLIT END WITH LATERALLY MOVABLE OPPOSED PORTIONS
  290     .With separate force-applying means
  291     FLEXIBLE MEMBER IS JOINT COMPONENT
  292     MEMBER ENDS JOINED BY INSERTED SECTION
  293     .Externally bridged
  294     .Laterally inserted section
  295     .Angle section
  296     .Section threaded to member
  297     .Expansible section
  298     .Fluted or splined section
  299     THREAD ADAPTOR
  300     DISTINCT END COUPLER
  301     .Diverse serial connections
  302     ..Axially cleft coupler
  303     .Single actuator for plural connections
  304     ..Axially biased end portions
  305     .Plural opposed sockets
  306     .Separate screw or pin-type connections
  307     .Continuous thread
  308     .Having separable end caps or plugs
  309     .Interrupted periphery, e.g., split or segmental, etc.
  310     ..Axially divided segments
  311     ...Interfitting
  312     ...Bolted
  313     ..Split
  314     .Including member wedging or camming means
  315     INCLUDING ANCILLARY MEANS BLOCKING DISCONNECTION OF JOINT
  316     .Blocker for assembled joint retainer
  317     ..Blocker keeper
  318     ..Blocked key
  319     .Blocker is catch or key
  320     .Cam or thread lock
  321     MANIPULABLE LATCH
  322     .Having operating mechanism
  323     .Swiveled bolt
  324     .Transversely sliding pin
  325     .Spring biased manipulator
  326     BIASED CATCH OR LATCH
  327     .By separate spring
  328     ..Radially sliding catch
  329     .Leaf spring
  330     .Pivotedd
  331     SIDE SLIDE: ELONGATED CO-LINEAR MEMBERS
  332     ANNULAR RECESS IS JOINT COMPONENT
  333     CONVERGENT INTERFACE
  334     .Tapered
  335     INTERCONNECTED FLANGES OR SHOULDERS
  336     .Separate flange or shoulder
  337     .Axially bolted or riveted
  338     .Clamped
  339     SCARF
  340     .Mirror images
  341     INTERFITTED MEMBERS WITH EXTERNAL BRIDGING PIECE
  342     THIMBLE: SCREW OR CAM
  343     SCREW OR CAM
  344     AXIALLY SPLIT OR SEPARABLE MEMBER
  345     INTERFITTED MEMBERS
  346     .Crossed rods
  347     ..One rod is encompassed by the other
  348     .Lugged member, rotary engagement
  349     ..Bayonet joint
  350     .Rotary binding cam or wedge
  351     ..Radially interposed shim or bushing
  352     ...Arcuate slip
  353     .Assembled by plural manipulations of member
  354     .Diametric end slot is joint component
  355     .Including separably interposed key
  356     ..Axially extending
  357     ...Resilient
  358     ...Longitudinally stepped or tapered
  359     .Longitudinally splined or fluted rod
  360     .Externally shouldered or headed rod
  361     .Socket
  362     .Including set screw
  363     .Interfitted angle or channel bars
  364     .Interdigitated ends
  365     .Radially interposed shim or bushing
  366     ..Biased by distinct radially acting means
  367     ..Wedging or camming
  368     ...Engaged by axial movement
  369     ....Plural, circumferentially related shims between members
  370     ....Threaded actuator
  371     ....Split or slotted bushing
  372     ..Resilient
  373     .Clamped members
  374     ..By wedge or cam
  375     .Peripheral enlargement, depression, or slot on one member is
            joint component
  376     .Including discrete retainer
  377     ..For telescoping members
  378     ...Transverse pin
  379     ....Traversing member
  380     ..For interfitted side faces
  381     .Enlarged head in complementary recess, e.g., dovetail, etc.
  382     .Rigid angle
  383     .Non-circular rod section is joint component
  384     ROD SIDE TO PLATE OR SIDE
  385     .Connected by double clamp
  386     .Shackle is integral with or independently attached to proximate
            side of plate or other sidee
  387     .Flanged or grooved rod
  388     .Traversed by connector
  389     .Laterally spaced rods
  390     ..By separable shim or bushing in connector
  391     ..Plural channels in connector
  392     .Connected by flexible tie
  393     .Lapped rod ends
  394     .Diagonal connector
  395     .One rod held between bight and other rod extending through
            aperture in leg of connector
  396     .Two rods encompassed by single connector
  397     .Resilient clip
  398     .Yoke or ring-type connector
  399     ..Rod received in open channel
  400     .Crossed rods
  401     MITER JOINT
  402     .Connector bridges inner or outer periphery
  403     RIGID ANGLE
  404     PARTICULAR CONFIGURATION OR MATERIAL OF MEMBER
  405.1   SEPARATE CONNECTOR, FASTENER OR RETAINER
  406.1   .Independently attached to one member
  407.1   ..Separable part independently attached to other member
  408.1   .Extending through openings in plural members
  409.1   .Cam or wedge
  410     MISCELLANEOUS
  *       ******************************
  *       DIGESTS
  *       ******************************
  DIG 1   Magnetic
  DIG 2   Metal treatment
  DIG 3   Load-responsive release
  DIG 4   Quick release
  DIG 5   Carbon electrode
  DIG 6   Reciprocable ball detent
  DIG 7   Split ring stop or abutment
  DIG 8   Radially acting cam or eccentric
  DIG 9   Adjustable clamp
  DIG 10  Readily disengageable panel joints