| | 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} |
| | ********************************* |
| | CROSS-REFERENCE ART COLLECTIONS |
| | ******************************** |
| 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} |
| | ********************************* |
| | FOREIGN ART COLLECTIONS |
| | ********************************* |
| 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} |
