US Patent Class 277
SEAL FOR A JOINT OR JUNCTURE-- Main Headings




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Current as of: June, 1999
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CLASS NOTES
300  DF  PROCESS OF DYNAMIC SEALING {6}
312  DF  PROCESS OF STATIC SEALING {4}
317  DF  SEAL COMBINED WITH INDICATOR, SAMPLER, OR INSPECTION FEATURE {4}
322  DF  SEAL FOR WELL APPARATUS {8}
345  DF  SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL) {10}
590  DF  SEAL BETWEEN FIXED PARTS OR STATIC CONTACT AGAINST RELATIVELY MOVABLE PARTS {3}
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CROSS-REFERENCE ART COLLECTIONS
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902  DF  SEAL FOR STERLING ENGINE
903  DF  SEAL FOR ROTATING KILN OR DRUM
904  DF  VISCOUS SEAL
905  DF  T-SHAPED OR I-SHAPED RING MEMBER INCLUDING SEAL ON A SIDE
906  DF  SEAL FOR ARTICLE OF INDEFINITE LENGTH (E.G., STRIP, SHEET, ETC.)
907  DF  PASSAGEWAY IN ROD OR SHAFT
908  DF  SEAL FOR USE IN ROTATING AND RECIPROCATING ARRANGEMENT
909  DF  SIMILAR SEALING STRUCTURES FOR MOUNTING ON PISTON AND ABOUT ROD
910  DF  O-RING SEAL
911  DF  SEAL COMBINED WITH NOMINAL MOTION TRANSMITTING DEVICE {1}
913  DF  SEAL FOR FLUID PRESSURE BELOW ATMOSPHERIC (E.G., VACUUM, ETC.)
914  DF  BACKUP SEAL FOR FAILURE OF PRIMARY SEAL
915  DF  SEAL INCLUDING COMPRESSION SET FEATURE
916  DF  SEAL INCLUDING VIBRATION DAMPENING FEATURE
917  DF  SEAL INCLUDING FRANGIBLE FEATURE
918  DF  SEAL COMBINED WITH FILTER OR FLUID SEPARATOR
919  DF  SEAL INCLUDING ELECTRICAL FEATURE
920  DF  SEAL INCLUDING ELECTROMAGNETIC SHIELDING FEATURE
921  DF  CLOSURE OR WEATHER STRIP SEAL
922  DF  BONDING OR JOINING FOR MANUFACTURE OF SEAL {1}
924  DF  DEFORMATION, MATERIAL REMOVAL, OR MOLDING FOR MANUFACTURE OF SEAL
925  DF  SNAP FIT FEATURE FOR MOUNTING OR ASSEMBLY OF SEAL
926  DF  SEAL INCLUDING FLUID PRESSURE EQUALIZING OR BALANCING FEATURE
927  DF  SEAL INCLUDING FLUID PRESSURE DIFFERENTIAL FEATURE
928  DF  SEAL INCLUDING PRESSURE RELIEF OR VENT FEATURE
929  DF  SEAL FEATURE WHERE CHANGE IN OPERATION OR CONDITION INDUCES ADDITIONAL LEAKAGE CONTROL
930  DF  SEAL INCLUDING HEATING OR COOLING FEATURE
931  DF  SEAL INCLUDING TEMPERATURE RESPONSIVE FEATURE {2}
934  DF  SEAL SWELLS WHEN WET
935  DF  SEAL MADE OF A PARTICULAR MATERIAL {4}
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FOREIGN ART COLLECTIONS
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FOR 100  DF  RADIALLY CONTAINED PACKING WITH AXIALLY ACTING FOLLOWER (277/102) {15}
FOR 128  DF  EXTERNALLY OPERATED ADJUSTMENT (277/126) {3}
FOR 132  DF  LATERAL ACCESS TO PACKING BOX (277/130) {1}
FOR 135  DF  IMPELLER TYPE (277/133) {1}
FOR 137  DF  LIQUID BARRIER (277/135)
FOR 138  DF  WITH ANTIROTATION KEY OR ANCHOR (277/136) {1}
FOR 140  DF  WITH DISTINCT RADIALLY ACTING BIAS(277/138) {16}
FOR 168  DF  ANCHOR EXTENDING THROUGH OR INTERFITTED WITH PACKING (277/166)
FOR 169  DF  HELICAL SEAT (277/167)
FOR 170  DF  SERIALLY ARRANGED, SEPARATELY SEATED OR ANCHORED PACKING MEMBERS (277/167.3)
FOR 171  DF  SINGLE SEAT FORMED BY OPPOSED RECESSES IN PLURAL MEMBERS (277/167.5)
FOR 172  DF  LATITUDINALLY STEPPED OR TAPERED SEAT (277/168) {2}
FOR 177  DF  FLOATING PACKING MEMBER (277/173) {3}
FOR 182  DF  INTERFITTING WITH RADIALLY PROJECTING FLANGE (277/178)
FOR 183  DF  EMBEDDED REENFORCEMENT OPPOSING TAPERED MOUNTED SURFACE (277/179)
FOR 184  DF  WITH COMPRESSION STOP (277/180)
FOR 185  DF  PACKING ATTACHED RETAINER (277/181) {3}
FOR 191  DF  PACKING CHAMBER OR SEAT WITH SEPARABLE END WALL (277/187)
FOR 192  DF  WITH AXIALLY RELATED BACKING OR RETAINING MEMBER (277/188 R) {1}
FOR 194  DF  WITH ANCHOR OR RETAINER (277/189)
FOR 195  DF  COMPOSITE SEAT (277/189.5)
FOR 196  DF  WEDGING PORTIONS (277/190) {1}
FOR 198  DF  SEGMENTAL (277/192) {3}
FOR 206  DF  AXIALLY SPACED FLANGES WITH CORRUGATED CONNECTING WEB (277/200)
FOR 207  DF  ANNULUS WITH DUCT OR PASSAGEWAY (277/201) {1}
FOR 209  DF  HELICAL (277/203)
FOR 210  DF  VOLUTE (277/204)
FOR 211  DF  FLEXIBLE U- OR V-CUP (277/205) {1}
FOR 214  DF  RIBBED CONTACT SURFACE (277/207 R) {3}
FOR 220  DF  FLEXIBLE CUP OR FLANGE TYP(277/212R) {3}
FOR 224  DF  CORRUGATED CONTACT SURFACE (277/213)
FOR 225  DF  CIRCUMFERENTIAL GROOVE IN PERIPHERAL SURFACE (277/214)
FOR 226  DF  WITH SPACED POCKETS, GROOVES, OR RECESSES (277/215)
FOR 227  DF  SPLIT ANNULUS (227/216) {4}
FOR 236  DF  WITH INTERMEDIATE RADIAL PERIPHERAL FLANGE (277/225)
FOR 237  DF  FLUENT OR VACUUM CORE (277/226)
FOR 238  DF  COMPOSITE (277/227) {5}
FOR 249  DF  METALLIC (277/236)
FOR 250  DF  MISCELLANEOUS (277/237 R) {1}