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: 277
 Class Title: JOINT PACKING

Subclass  Subclass
Number    Title

  1       PROCESSES
  2       WITH INDICATOR, SAMPLERS, OR INSPECTION MEANS
  3       WITH MEANS FOR ESTABLISHING PRESSURE CONDITION WITHIN ASSEMBLY
  4       PIPE OR PLATE ATTACHED PACKING BOX
  5       WITH DISPARATE JOINT
  6       .Interacting with packing
  7       .Alternatively fixed or movable coaxial rods
  8       .Antirotation coupling
  9       WITH REPAIR OR ASSEMBLY MEANS
  9.5     .Holding means functioning only during assembly or
            disassembly
  10      .Handle
  11      .Position or guide
  12      STRUCTURAL INSTALLATION
  13      CENTRIFUGAL LIQUID BARRIER
  14 R    .Centrifugal cup or chamber
  14 V    ..Vertical shaft
  15      WITH FLUID CIRCUIT
  16      WITH ISOLATED FLOW PATH
  17      WITH EXTERNAL FLUID RECEIVER
  18      .With related receiver or director
  19      .Surrounding rod
  20      ..Carried by removable end member
  21      .Separably mounted on peripheral wall
  22      WITH HEATER, HEAT EXCHANGER, OR HEAT TRANSMITTER
  23      WITH FLUID SEPARATOR OR FORAMINOUS GUARD
  24      WITH DEPOSIT REMOVAL
  25      WITH CENTRIFUGAL FEATURE
  26      TEMPERATURE RESPONSIVE
  27      WITH PRESSURE RESPONSIVE LOADING MEANS
  28      AUTOMATIC CONTROL
  29      .Vent
  30      GYRATORILY OR SLIDABLY MOUNTED PACKING ASSEMBLY
  31      ROTATABLE PACKING FOR AXIALLY MOVABLE ROD
  32      COMBINED OR CONVERTIBLE
  33      AXIALLY BIASED ROD
  34      INFLATABLE PACKING OR BIAS
  34.3    .Toroid
  34.6    .With internal fluid distributor
  35      CARTRIDGE-TYPE SEALING UNIT
  36      .Axially extensible housing
  37      .With external seal
  38      .Relatively rotatable radially contacting sealing members
  39      ..Within unit housing
  40      ...Axially biased translatable member
  41      ....Rotatable
  42      ..With connecting diaphragm
  43      ...Biased against housing
  44      .Segmental packing
  45      ..With radial bias means between housing and packing
  46      ...Acting along intersecting radial lines
  47      .Packing held between radial housing flange and separatee
            retainer
  48      ..Resiliently biased against flange
  49      ...Rigidly secured bias means
  50      .Packing held by recess in housing member
  51      .Spaced packing retainers
  52      .Packing reenforced at housing juncture
  53      LABYRINTH
  54      .Adjustable concentric member
  55      .Plural opposed projections
  56      ..Interfitting or overlapping
  57      ...With axially directed projections or grooves
  58      PLURAL DISTINCT PACKING ASSEMBLIES
  59      .With interposed fluid receiver
  60      .Packing chamber within follower
  61      .Oppositely biased coaxial
  62      ..Interposed bias
  63      .Asymmetrical mirror images
  64      .Including manually adjustable packing box
  65      .Including relatively rotatable, radially contacting sealing
            members
  66      AXIALLY SEPARABLE PACKING BOX
  67      IMPELLER WITH FLUID RECEIVER OR DIRECTOR
  68      WITH FLUID DIRECTOR
  69      .Nested with packing
  70      WITH FLUID PORT
  71      .Through seat or chamber wall
  72 R    ..With fluid line or connection
  72 FM   ...Fluent packing material
  73      ..With fluid piston
  74      ..Communicating with relatively movable sealing surfaces
  75      ..Connected port in packing member
  76      ...And bias member
  77      ..Extending through a follower
  78      ..In corner
  79      ..In peripheral wall
  80      MAGNETIC
  81 R    RELATIVELY ROTATABLE RADIALLY CONTACTING SEALING MEMBERS
  82      .With diverse relatively movable sealing part
  83      .Floating ring
  84      .Radially acting bias
  85      .With secondary packing and bias
  86      ..Member and secondary packing biased oppositely by common
             spring
  87      ..Member and radially contained secondary packing biased by
             common spring
  88      .Flexible diaphragm between member and axially movable part
  89      ..Shaft attached
  90      ..Attached at radially spaced points
  91      .Telescoping member and fixed shaft abutment
  92      .Elastomeric backing far member
  93 R    .Axially translatable member rotatable with shaft
  93 SD   ..Spring driven
  94      .Radial groove or rabbet
  95      .Flexible packing member
  96      .Particular interface material and configuration
  96.1    ..Interface configuration
  96.2    ..Interface material
  81 P    .Rotary pistonn
  81 S    .Segmental
  97      VIBRATING MOUNT OR PACKING MEMBERS
  98      .Axially spring pressed
  99      ..Coaxial spring
  100     .Arcuate bearing face
  101     EXTERNALLY CLAMPED
  102     RADIALLY CONTAINED PACKING WITH AXIALLY ACTING FOLLOWER
  103     .Piston
  104     .Sectional follower
  105     .Bolted flange
  106     ..Spring biased flange
  107     .With operating handle
  108     .With tool engaging means
  109     .Weight actuated
  110     .Screw thimble
  111     ..With locking means
  112     .Screw
  113     .With operating mechanism
  114     .Unidirectional movement
  115     .Tapered follower or box
  116     ..Arcuate
  116.2   .Axially related backup member radially actuated by
            movement of follower
  116.4   .Telescoping actuator
  116.6   ..With inserted sleeve expander
  116.8   ..Deflected packing
  117     .Wedging surfaces
  118     ..Internal shell
  119     ..Split or segmental packing
  120     ...Expanding and contracting
  121     ....Elastomeric
  122     ...Contracting
  123     .Plural packing elements
  124     ..Nested
  125     ..Diverse
  126     EXTERNALLY OPERATED ADJUSTMENT
  127     .Fluid motor
  128     .Circumferential band
  129     .Acting along radius
  130     LATERAL ACCESS TO PACKING BOX
  131     .With distinct closure
  132     ..Packing attached
  133     IMPELLER TYPE
  134     .Axially acting
  135     LIQUID BARRIER
  136     WITH ANTIROTATION KEY OR ANCHOR
  137     .Radial wall
  138     WITH DISTINCT RADIALLY ACTING BIAS
  139     .Unitary packing spacer and bias means
  140     ..U-section
  141     .Common bias for axially spaced packings
  142     .With axially acting bias means
  143     .With axial component
  144     ..Complementary inclined surfaces
  145     ...Transversely symmetrical
  146     .With bias restrainer
  147     .With adjustable loading means
  148     .Individually biased segmentss
  149     .Circumferentially spaced radially acting springs
  150     ..With radial pin or socket
  151     .Circumferential thrust
  152     .Axial lip or boss
  153     ..Exposed coil spring
  154     .Interfitted segments
  155     .With bridging segments
  156     .Break joint
  157     .Periphery engaging spring
  158     ..Incompatible shapes
  159     ...Radially extending tongues
  160     ...Wave or undulate
  161     ...Polygonal
  162     ..Open-end
  163     ..Spiral
  164     .Embedded or enclosed spring
  165     .Nonmetallic
  166     ANCHOR EXTENDING THROUGH OR INTERFITTED WITH PACKING
  167     HELICAL SEAT
  167.3   SERIALLY ARRANGED, SEPARATELY SEATED OR ANCHORED PACKING
           MEMBERS
  167.5   SINGLE SEAT FORMED BY OPPOSED RECESSES IN PLURAL MEMBERS
  168     LATITUDINALLY STEPPED OR TAPERED SEAT
  169     .Arcuate wall
  170     .Oblique wall
  171     ..Plural
  172     ...Parallel
  173     FLOATING PACKING MEMBER
  174     .Radially translatable
  175     ..Axially spring pressed
  176     .Additional member
  177     .Elastomeric
  178     INTERFITTING WITH RADIALLY PROJECTING FLANGE
  179     EMBEDDED REENFORCEMENT OPPOSING TAPERED MOUNTING SURFACE
  180     WITH COMPRESSION STOP
  181     PACKING ATTACHED RETAINER
  182     .Peripheral shell
  183     ..With radial mounting flange
  184     ..Channel-shaped
  185     .Plural at axially opposed ends
  186     .Resilient
  187     PACKING CHAMBER OR SEAT WITH SEPARABLE END WALL
  188 R   WITH AXIALLY RELATED BACKING OR RETAINING MEMBER
  188 A   .With anti-extrusion rings
  189     WITH ANCHOR OR RETAINER
  189.5   COMPOSITE SEAT
  190     WEDGING PORTIONS
  191     .Enclosed
  192     SEGMENTAL
  193     .Axially related segments
  194     ..L-shaped
  195     ..With radially related segment
  196     ..Coiled or corrugated segment
  197     ..Diametrically opposed splits
  198     .Concentric segments
  199     .Interfitting segments
  200     AXIALLY SPACED FLANGES WITH CORRUGATED CONNECTING WEB
  201     ANNULUS WITH DUCT OR PASSAGEWAYY
  202     .Elongated
  203     HELICAL
  204     VOLUTE
  205     FLEXIBLE U- OR V-CUP
  206 R   .Radially facing
  206 A   ..X-shape
  207 R   RIBBED CONTACT SURFACE
  208     .Axially spaced
  209     ..Opposite surfaces
  210     ...Line contact
  211     .Opposite surfaces
  207 A   .Pipe joints or connections
  212 R   FLEXIBLE CUP OR FLANGE TYPE
  212 C   .Flexible cup type
  212 F   .Flange
  212 FB  .Flexible boot
  213     CORRUGATED CONTACT SURFACE
  214     CIRCUMFERENTIAL GROOVE IN PERIPHERAL SURFACE
  215     WITH SPACED POCKETS, GROOVES, OR RECESSES
  216     SPLIT ANNULUS
  217     .Variable radius
  218     .With separate gap or bridging piece
  219     ..End secured
  220     .With joining structure
  221     ..End-to-end tongue and slot
  222     ..Beveled or arcuate mating surfaces
  223     .With insert
  224     ..Hard material
  225     WITH INTERMEDIATE RADIAL PERIPHERAL FLANGE
  226     FLUENT OR VACUUM CORE
  227     COMPOSITE
  228     .Elastomeric core
  229     .Distinct sheath
  230     ..Woven or braided strands
  231     .Reentrant contact surface
  232     ..Enclosing plural plies
  233     .Plural planar or conical plies
  234     ..Metal faced
  235 R   .Including metal
  235 A   ..Planar coating
  235 B   ..Engine gasket
  236     METALLIC
  237 R   MISCELLANEOUS
  237 A   .Dust guard
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTION
  *       ******************************
  901     WITH ELECTRICAL FEATURE
  *       ******************************
  *       DIGESTS
  *       ******************************
  DIG 1   Fluid jet
  DIG 2   Bell and spigot type
  DIG 3   Plural packings
  DIG 4   Dust guards
  DIG 5   Air bearing
  DIG 6   Material
  DIG 7   Roller typee
  DIG 8   Shaft passage
  DIG 9   Vibration damping
  DIG 10  Frangible