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.
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