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: 285
 Class Title: PIPE JOINTS OR COUPLINGS

Subclass  Subclass
Number    Title

  1       SAFETY RELEASE
  2       .With frangible or deformable element
  3       FRANGIBLE ELEMENT
  4       .Score line or groove
  5       IRRIGATION TYPE (GUIDE AND SUPPORT)
  6       .Released by conduit motion
  7       VACUUM CLEANER TYPE
  8       FAUCET TYPE (E.G., SLIP-ON)
  9.1     WITH MAGNETIC ELEMENT
  9.2     CONTACT ONLY
  10      LIQUID SEAL
  11      .With relative motion
  12      CONVERTIBLE
  13      WITH LEAKAGE OR DRIP DISPOSAL
  14      .Weep holes
  15      REPAIR
  16      .Removable wear element
  17      ..Alternate wear parts
  18      WITH ASSEMBLY MEANS OR FEATURE
  19      .Spaced plates
  20      ..Penetrating
  21      .For molded joints
  22      ..Spacing means (e.g., lugs)
  23      .With holding means functioning only during transportation
            assembly or disassembly
  24      .Guide and support
  25      ..Plural noncommunicating (e.g., train pipe type)
  26      ...With latch or lock
  27      .Guide
  28      ..Plural noncommunicating
  29      ...With latch or lock
  30      .Combined inlet and outlet
  31      .Inserted section
  32      ..Threaded telescopic
  33      .Quick release
  34      ..Radially moved segmented threads (e.g., chuck type)
  35      ...Pivoted segments
  36      .Attached thread-jamming preventer
  37      .With winder for packing or clamp
  38      .Handle or handwheel for rotary engagement
  39      .Particular tool-engaging means or with tool
  40      .Thread-cutting means
  41      WITH HEATING OR COOLING
  42      ROOF OR FLOOR DRAIN FLASHING TYPE
  43      .Angled
  44      ..Adjustable pitch
  45      WITH CASING, LINING OR PROTECTOR
  46      .Escutcheon type
  47      .Insulated
  48      ..Between serially connected parts
  49      ...Intermediate resilient conduit (noise-dampener)
  50      ...By intermediate jointt
  51      ....Ball and socket
  52      ....Screw thimble
  53      ...Sleeve
  54      ...Socket
  55      .Lined
  56      WATER CLOSET TYPE, FLOOR-SUPPORTED
  57      .Flexible diaphragm or bellows
  58      .Intermediate coupling
  59      ..Tapered spigot
  60      .Tapered spigot
  61      WITH SUPPORT
  62      .Vehicle
  63      ..Railway
  64      .Static building construction
  65      IDENTICAL HALVES (E.G., TRAIN LINE TYPE)
  66      .With intermediate sleeve
  67      .Side slide
  68      .Transverse port
  69      ..Auxiliary detent
  70      .Longitudinal port
  71      ..Pivoted hook or loop
  72      ...Auxiliary detent
  73      ..Integral hook
  74      ...Oscillating engagement
  75      ....Reciprocating conduit
  76      ....Auxiliary detent
  77      .....Reciprocating
  78      ......Key or wedge
  79      ...Auxiliary detent
  80      WITH LOCK OR SEAL
  81      WITH MEANS BLOCKING RELEASE OF HOLDING MEANS
  82      .Auxiliary latch
  83      ..Line pressure-responsive
  84      ..Reciprocating
  85      ...With manipulator
  86      ...Locking sleeve
  87      ..Pivoted
  88      ...With manipulator
  89      .Lock nut or washer
  90      .Set screw
  91      .Key or pin
  92      .Thread lock
  93      WITH INDICATOR, ALARM OR INSPECTION MEANS
  94      WITH LUBRICATION
  95      WITH FLUID PRESSURE SEAL
  96      .With external pressure supply
  97      ..Inflated member
  98      .Swivel with flange in socket
  99      .Coacting opposing duplicate
  100     .With expansible chamber means
  101     ..Piston-type reactor
  102     ...With line pressure-responsive catch
  103     ...Side slide
  104     .With separate, encased pipe-gripping means
  105     ..Packing-actuated
  106     .Independent supply passage
  107     .Expansible shank
  108     .Separate retainer or positionerr
  109     .Expansible internal sleeve-type gasket
  110     .Flexible lip
  111     ..C-shaped section
  112     ...Longitudinal web
  113     .Wedged gasket
  114     WITH STRAIN RELIEF
  115     .Extension of socket or sleeve
  116     ..Separable
  117     WITH BROKEN PARTS RETAINER
  118     KNUCKLE JOINT WITH ACTUATING MEANS
  119     COMBINED
  120     SYSTEMS
  121     .With access opening
  122     ..Swivel
  123     ...With hollow center bolt
  124     ..Detachable return bend
  125     ...With yoke clamp
  126     ....Removable bushing
  127     ..Elbow
  128     .Pipe or cable and box
  129     ..With attached closure flange
  130     .Receptacle inlet and outlet in unitary mounting
  131     .Plural noncommunicating paths
  132     ..With branched flow
  133.1   ..Concentric
  133.2   ...Having suspension means (e.g., oil well head type,
              etc.)
  134     ...With relative motion (e.g., drier drum type)
  135     ....Ball and socket
  136     ..With relative motion
  137.1   ..Parallel
  137.2   ...Having suspension means (e.g., oil well head type,
              etc.)
  138     .Inner to spaced outer tube coupling
  139     ..Radially compressed packing
  140     ..Suspended (e.g., oil well casing type)
  141     ...Radially movable support ring (split ring type)
  142     ...Inner tube coupling with integral support
  143     ....With intermediate member
  144     ...Slip anchored inner tube
  145     ....With slip actuator
  146     ....With unitary slip and packing assembly
  147     ....With slip-compressed packing
  148     ....With packing seat on slip
  149     .Plural layer pipe
  150     .Branched
  151     ..With relative motion
  152     ...Double Y-type
  153     ..With vent
  154     ...Antisiphon
  155     ..Y-type
  156     ..T-type
  157     .U-type
  158     .Pipe or rod-to-pipe-to-plate
  159     ..Dependent coupling
  160     ..Ball and socket
  161     ..Plate clamped between internal nut and shoulder or flange
  162     ..Expanding spigot engages platee
  163     .Serial relatively movable joints
  164     ..Diverse
  165     ...With telescopic type
  166     ..Plural ball and socket
  167     ...With sphere intermediate two sockets
  168     ..Plural swivel
  169     .Serial diverse single flow path or line
  170     ..Intermediate joint with expansible spigots
  171     ..Compound (e.g., leak-gland type)
  172     ...With molded joint
  173     ..Diverse materials
  174     ...Nonmetal to metal
  175     ..Diverse coupling interfaces
  176     ..Diverse size or shape
  177     ...Reducer
  178     ...Eccentric
  179     ELBOW
  180     .Cooperating saddle clamp
  181     .Serially connected, adjustable
  182     .Nesting parts
  183     .Sheet metal
  184     ADJUSTABLE ANGLE
  185     .With center bolt
  187     TEMPERATURE-RESPONSIVE
  188     SIDE TO PIPE SIDE
  189     END TO SIDE OR PLATE
  190     .Swivel with lateral port to annular sleeve
  191     .Bolt or hook in flow (e.g., center bolt)
  192     .Penetrating (e.g., secant)
  193     ..Fixture
  194     ..Hole edge clamp
  195     ...Transverse screw
  196     .Expansible packing on spigot
  197     .Saddle-type clamp
  198     ..Yoke with radial screw at bight
  199     ..Yoke with thread on free ends
  200     .Flexible or yielding plate
  201     .Sput
  202     ..Interlocked
  203     ...Plate edge locks sput
  204     ...Packed
  205     ..Clamped plate
  206     ...Screw clamp
  207     ....With conduit clamping means
  208     ....Attachable from one side of plate
  209     .....Lugged nipple
  210     ......Movable lug
  211     .Countersunk packed
  212     ..Screw-compressed
  213     .Gland
  214     ..Internal with expanding means
  215     ..External of conduit
  216     ...Expansible
  217     ....With conduit clamping means
  218     .....Transverse screw
  219     .Screw
  220     ..With packing
  221     ..Necked platee
  222     .Expanded or swaged pipe
  223     FLEXIBLE JOINT, RIGID MEMBERS
  224     .Radial and longitudinal expansion compensators
  225     .Diaphragm
  226     .Bellows
  227     ..Multiple
  228     ...Balanced
  229     ..Single fold type
  230     .Concrete, clay, or masonry pipe
  231     .Socketed packing type
  232     ..With conduit gripping means (e.g., wedge ring)
  233     ..Beaded conduit
  234     ..Flared conduit
  235     .Resilient sleeve type
  236     ..Clamped
  237     ..With spigot and socket ends
  238     NONMETAL TO METAL
  239     .Internal member (e.g., sleeve or nipple)
  240     ..Flexible tip pipe
  241     ...External clamp
  242     ..External clamp or holder
  243     ...Movable jaw
  244     ...Spring
  245     ...Screw-compressed
  246     ....Thimble gland
  247     ....Thimble
  248     .....Separable means between hose and clamp
  249     ......Wedge ring
  250     ....Gland
  251     ....Screw-fed hose
  252     ...Band clamp with tightener
  253     ....Bolted
  254     ...Wrapped band
  255     ...Wedge
  256     ...Deformation
  257     ....Bendable spur fingers
  258     ....Expanding internal member
  259     ...Particular surface
  260     BOTH MEMBERS PLIABLE AND NONMETAL
  261     BALL AND SOCKET
  262     .With internal tie means
  263     .Radially spaced spherical surfaces
  264     .Oscillative
  265     ..With gimbal ring
  266     .Composite ball
  267     .Spring-biased packing
  268     .Spring-biased ball
  269     ..Socketed spring
  270     .With separate packing actuator
  271     .With removable ball seat
  272     SWIVEL
  273     .Transverse cylinder in socket
  274     .With yoke
  275     .Pipe in socket type
  276     ..With ball, ring or pin detent
  277     ...With manipulator
  278     ..With flange in socket
  279     ...Spring-pressed flangee
  280     ...Flange locked axially
  281     ....Packed
  282     .With rotation limits
  283     DETACHABLE HINGE
  284     MOLDED JOINT
  285     .With root repellent
  286     .Weld
  287     .Solder
  288     .Composite pipe (ends)
  289     .With screw interlock
  290     .With lug and slot interlock
  291     .Lining molded to pipe end
  292     .Sleeve
  293     ..Wrapped
  294     ..Sprue
  295     .With packing filler
  296     ..Wedge ring type
  297     .Sprue
  298     VARIABLE LENGTH
  299     .With bellows seal
  300     ..Internal sleeve
  301     ..With limit means
  302     .Telescopic with relative motion
  303     .Step adjustment
  304     FRICTION DETENT (E.G., BREAKAWAY TYPE)
  305     ESSENTIAL CATCH
  306     .Line pressure-responsive
  307     .Operated by conduit motion
  308     .With manipulator
  309     ..With means to increase contact pressure (e.g., tightener)
  310     ...Separate actuator
  311     ...Dead center lever systems (self-locking)
  312     ...Cam lever
  313     ..Restrainer for manipulator
  314     ..Cam sleeve
  315     ...Reciprocating sleeve
  316     ....Spring-biased sleeve
  317     ..Spring-biased catch
  318     .Coil spring
  319     .Leaf spring
  320     .Pivoted
  321     .Resilient ring
  322     MOVABLE JAW (E.G., CONTRACTIBLE SOCKET)
  323     .Wedge bushing
  324     .Reducing bushing
  325     SIDE SLIDE
  326     .Clamping lever
  327     .Screw-thimble tightener
  328     PARTICULAR INTERFACE
  329     .Diverse metal
  330     .Interlocked or overlapped
  331     .Annular socket
  332     .Tapered
  332.1   ..Conoidal
  332.2   ..Packed
  332.3   ...Interface
  332.4   ..Discontinuous interface surface
  333     ...Threaded (e.g., drill pipe type))
  334     ....Flat crest
  334.1   ..Adapter seat
  334.2   ...Double-tapered internal sleeve
  334.3   ...Elastomeric
  334.4   ..Dissimilar
  334.5   ..Flared
  335     PACKED
  336     .With cooperating opposed packing grooves
  337     .Externally with clamp
  338     .Radially expansible, spigot-carried
  339     .Wedge
  340     ..Toggle ring type
  341     ..Double wedge surfaces
  342     ..Pushed
  343     ..Compressed
  344     ."Rolled-in" gasket
  345     .Frictional retention upon insertion
  346     ..With packing-expanding means
  347     .Carried on cylindrical shank
  348     .With separable follower
  349     .Supplemental packing socket
  350     ..Extrusion recess
  351     .Plural seals
  352     ..Coacting opposed duplicates
  353     .Screw thimble-gland
  354     .Screw thimble
  355     .Screw
  356     .Gland
  357     ..Threaded
  358     .Cam
  359     ..Thimble
  360     ..Lugged pipe, rotary engagement
  361     ...Bayonet slot
  362     ...With manipulating ring
  363     .Flanged pipe
  364     ..Clamped
  365     ...Band type
  366     ....Screw
  367     .....Tangential
  368     ...Axially bolted
  369     .Sleeve
  370     ..Internal
  371     ...With external
  372     ..Dependent
  373     ...Longitudinally divided
  374     .Socket
  375     ..Internal reciprocating packer
  376     ..Lugged pipe, rotary engagement
  377     ...With manipulating ring
  378     .Diverse metal seat
  379     .Gasket retainer
  380     ..Resilient stud
  381     SHRUNK FIT
  382     DEFORMED
  382.1   .Both members
  382.2   ..Simultaneous
  382.4   .Outwardly expanded
  382.5   ..Bulgedd
  382.7   .By separate deformable element
  383     DISTINCT SPACED SERIAL
  384     SCREW THIMBLE-GLAND
  385     .Wedge
  386     SCREW THIMBLE
  387     .Removable
  388     ..Detachable flange
  389     .Wedge
  390     SCREW
  391     .Interrupted thread
  392     .Attached thread bushing
  393     .Gland
  394     CAM
  395     .Thimble
  396     .Bayonet type
  397     INTERNAL SLEEVE
  398     .With external
  399     SOCKET
  400     .Detachable ring
  401     .Lugged pipe, rotary engagement
  402     ..Bayonet slot
  403     .With separable fastener
  404     ..Set screw or pin
  405     FLANGE
  406     .Clamped
  407     ..Band type
  408     ...With intermediate flange engaging member
  409     ...Lever
  410     ...Screw
  411     ....Segmented ring
  412     ..Axially bolted
  413     ..Rings
  414     .Detachable
  415     ..Split ring
  416     .Fused
  417     SLEEVE
  418     .Dependent
  419     ..Longitudinally divided
  420     CLAMP
  421     .Wedge
  422     MATERIALS
  423     .Nonmetallic
  424     .Sheet
  425     MISCELLANEOUS
  *       ******************************
  *       CROSS-REFERENCE ART COLLECTIONS
  *       ******************************
  900     BALANCED PRESSURE
  901     CAP CLOSURES
  902     CANTED RING
  903     CORRUGATED
  904     CRYOGENIC
  905     DIFFERENT COEFFICIENTS OF EXPANSION
  906     EQUIVALENTS
  907     ELECTRICAL FIXTURES
  908     EXTRUSION HOLES
  909     FLUOROCARBONS AND MEMORY PLASTICS
  910     GASKETSS
  911     GLASS
  912     GEAR
  913     INTERDIGITATING
  914     IRREVERSIBLE
  915     MASTIC
  916     MOLECULAR CHANGE
  917     METALLIC SEALS
  918     O-RING
  919     RESINOUS
  920     REMOTELY CONTROLLED
  921     SNAP-FIT
  922     SAFETY AND QUICK RELEASE FOR DRILL PIPES
  923     SPECIFIC MATERIAL
  924     VENTED
  925     SWELLS WHEN WET