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Class Number: 251 Class Title: VALVES AND VALVE ACTUATION Subclass Subclass Number Title 1.1 BLOW-OUT PREVENTERS (I.E., COOPERATING SEGMENTS OF ANNULUS) 1.2 .Deformable annulus 1.3 .Radial reciprocating ram 3 PATTERN TRACER CONTROLLED ACTUATOR 4 TUBE COMPRESSORS 5 .Fluid pressure actuated 6 .Roller tube contacting element 7 .Perpendicularly reciprocating tube contacting element 8 ..Screw actuated 9 .Pivoting tube contacting element 10 ..U-shaped resilient bar or rod 11 HEAT OR BUOYANCY MOTOR ACTUATED 12 FLUID ACTUATED OR RETARDED 14 .Fluid and non-fluid actuators 15 .Compulsory cut-off after flow period 16 ..Serial main line cut-off and manual valves (e.g., hydraulic "fuses") 17 ...Interconnected motion 18 ....Manual and pilot valves 19 ..Auxiliary pilot valve overrides a first pilot valve 20 ..Forced return of actuator to cut-off position 21 ..Actuator connection released on opening of cut-off valve 22 ..Control fluid released into closed build-up chamber 23 ..Dashpot interconnects actuator and valve 24 .Venturi or line flow effect assisted 25 .Pilot or servo type motor 26 ..Alternative pressure sources or pilot valve 27 ..Servo failure responsive control of main valve 28 ..Fluid actuated pilot valve 29 ...With additional pilot valve control 30.01 ..Electrically actuated pilot valve 30.02 ...Main valve biased closed by fluid pressure 30.03 ....Venting passage within movable main valve 30.04 .....Pilot valve movably mounted within or around main valve 30.05 ....Fluid pressure sole means for biasing valve closed 31 ..Double or oppositely acting motor units 32 ..Latched pilot valve 33 ..Choked pressure type servo motor 34 ...With reverse flow prevenging (nonsiphoning) 35 ...Variable choke passage according to valve position 36 ...With separate dashpot or choked fluid retarding chamber 37 ...With choke or restrictor in main line 38 ...Pilot valve seated in motor or valve element 39 ....Controls inlet to choke chamber 40 ....Tilting pilot valve 41 ...Remote pilot valve actuation 42 ...Adjustable opening limit for main valve 43 ...Main valve biased open by line pressure 44 ....Differential reaction surface for line pressure 45 .....Diaphragm or bellows surfacee 46 ....Diaphragm or bellows motor element 47 ..With separate dashpot or choked fluid retarder 48 .Dashpot or fluid controlled retarder or timer 49 ..Latch or trip releasing 50 ..Line pressure connected dashpot or choke chamber 51 ...With choke by-pass or relief means 52 ...Chamber fills on closing of main valve 53 ..Line connected open accumulating chamber 54 ..Closed fluid circuit dashpot or choke chamber 55 ..With choke by-pass or relief means 56 .Plural operations (e.g., lifting and rotating rotary valve) 57 .Fluid link or column actuator 58 .With mechanical movement between actuator and valve 59 .Rotary or oscillatory motor 60 .With adjustable limit stop for actuator 61 .Flexible wall expansible chamber reciprocating valve actuator 61.1 ..Flexible wall valves fluid 61.2 ..Coaxial actuator, seat and valve 61.3 ...Valve between coaxial spring biasing means and actuator 61.4 ...Coaxial spring biasing means between valve and actuator 61.5 ...Actuator wall between valve and coaxial spring biasing means 62 .Piston type expansible chamber reciprocating valve actuator 63 ..Unitary piston and valve 63.4 ..Lost motion, abutment or resilient connection between actuator and valve 63.5 ..Coaxial actuator, seat and valve 63.6 ...Coaxial spring biasing means between valve and actuator 64 WITH NON-FLUID RETARDER 65 PERMANENT OR CONSTANTLY ENERGIZED MAGNET ACTUATOR 66 BIASED TRIP 67 .With second diverse control 68 .Electrical trip actuation 69 ..Trip operated on failure of electric power 70 ..With electrical resetting means 71 ...Rotary electric motor 72 .Weight biased trip 73 .Fluid pressure trip actuation 74 .Mechanical movement trip actuation 75 WITH SNAP ACTION 76 IMPACT TYPE ACTUATOR 77 LOST MOTION BETWEEN ACTUATOR AND VALVE 78 .Lever 79 .Overload release 80 ..Elastic 81 ..Slip coupling between actuator and valve 82 .Check valve with external opening and closing means 83 ..Spring 84 VALVE HEAD MOVABLY CONNECTED FOR ACCOMMODATION TO SEAT 85 .With yieldable connection 86 .With universal connection 87 .With single plane swing pivoted connection 88 .Rotatable only 89 WITH MEANS FOR BLOCKING OR DISABLING ACTUATOR 89.5 .Actuator, or blocking means, includes flow path joint 90 .Attachments 91 ..Requiring modification of valve 92 ..Acting on valve limit stopp 93 ...Mounted on valve actuator 94 .Fluid pressure biased latch 95 .Released by non-valving actuator motion 96 ..Linear reciprocation of rotary handle 97 ...Latch connects actuator to body through head 98 ..Pivoted handle 99 ...With spring 100 ..Rotation of reciprocating handle 101 .Latch manipulator mounted on handle or stem 102 ..Constrained linear motion 103 ...With pivoted latch 104 ...With latch rigidly associated with manipulator 105 ....Latch lug extends transversely to axis of manipulator 106 ...With transversely movable latch 107 ..With pivoted latch 108 ...Resilient latch and manipulator 109 ...With spring 110 ..With reciprocating latch 111 .Latch manipulator mounted on valve body 112 ..Set screw 113 ..Constrained linear motion of latch with rigidly associated manipulator 114 ..With pivoted latch 115 ...Resilient latch and manipulator 116 ...With spring 117 WITH RESTRICTOR IN PARALLEL TO MAIN VALVE 118 WITH MATERIAL GUIDE OR RESTRICTOR 119 .Aspirated stem drain 120 .Movable or resilient guide or restrictor 121 ..Adjustable guide or restrictor 122 ...Tapered metering plug 123 .Valve at point of greatest restriction 124 ..Venturi restrictor 125 .Drop forming restrictor 126 .Spiral guide or spiral restrictor 127 .Baffle or zigzag flow restrictor 128 WITH DETACHABLE ACTUATOR AND MEANS TO PREVENT LEAKAGE WHEN ACTUATOR IS DETACHED 129.01 ELECTRICALLY ACTUATED VALVE 129.02 .With means to bias valve open 129.03 .With nonelectrical actuator 129.04 .Remote or follow-up control system for electrical actuator 129.05 .Having means to produce digital pulses 129.06 .Having element dimensionally responsive to field 129.07 .Balanced valve 129.08 .Having means to produce proportional flow 129.09 .Solenoid having plural coils 129.1 ..Coils have common axis 129.11 .Rotary electric actuator 129.12 ..With limit control 129.13 ..With speed or braking control 129.14 .Freely rotatable ball valve 129.15 .Including solenoid 129.16 ..Having plate-shaped armature 129.17 ..Having diaphragm between coil and opening controlled 129.18 ..With means to adjust stroke of armature 129.19 ..Lost motion between valve and valve actuatorr 129.2 ..Mechanical movement between valve and solenoid 129.21 ..Coil surrounds valve port or flow line 129.22 ..Solenoid within flow line 142 WITH CORRELATED FLOW PATH 149 .Valve operated by joining flow path sections 149.1 ..Joining motion includes linear valve operating component 149.2 ...Valve rotatably or hingedly mounted 149.3 ...Valve motion is transverse to, or opposed to, the linear component 149.4 ...Joint includes screw thimble 149.5 ...Of rotatable flow path section 149.6 ...Motion opposed by valve spring 149.7 ....Contact only, or friction, joint 149.8 .Valve operated by motion of flow path 149.9 .Flow path joint interlocked with valve or actuator 144 .Tank 145 .Pipe side 146 ..Clamp type coupling 147 .Pipe end (terminal valve) 148 .Pipe coupling or union 150 ..Flexible or expansible 151 ..Non-rotatable conduit coupling 152 ..Valve seat and coupling element removable as a unit 143 .With mounting or support 153 .With particular outlet or inlet 154 ..Fluid deflecting means at outlet 155 ..Nozzle or spout 156 ...With receptacle accommodating feature 157 WITH MEANS TO INCREASE HEAD AND SEAT CONTACT PRESSURE 158 .With positive reduction 159 ..Seat pressed to valve 160 ..Rotary valve 161 ...Independent actuation 162 ...Cam or wedge 163 ....Encased 164 ...Screw 165 ....Non-reciprocating 166 .....With slip coupling 167 ..Bifaced 168 ...Screw 169 ...Toggle 170 .Seat pressed to valve 171 ..Packing presed by gland 172 ..Fluid pressure 173 ...Butterfly valve 174 ..Spring 175 .Fluid pressure 176 .Spring 177 ..Pivoted valve 178 ...Bifaced 179 ...Terminal 180 ..Rotary valve 181 ...Plug 182 ....Expanding 183 ....Encased 184 .....At actuator end 185 ...Spring in fluid 186 ..Pistonn 187 .Separate actuators or actuator motion 188 ..Rotary valve 189 ..Piston with expansible packing 190 .Piston 191 ..Packing expands with closing 192 .Rotary valve 193 .Gate valve 194 ..Screw sole actuator of expander and valve 195 ..Bifaced 196 ...In both closed and open positions 197 ...Faces pressed by subsequently movable expander 198 ....With second expander 199 ....Face element directly contacts casing 200 ...Carried expander contacts valve casing 201 ....Pivoting expander 202 ...Faces or carrier contact stationary expander 203 ..Cam or wedge 204 ...Moves with respect to head and seat 205 WITH SELECTIVE FLOW REGULATION 206 .Different sized bores in valve head 207 ..Rotary plug 208 .Rotary 209 ..Plug 210 SEQUENTIAL OPENING OR CLOSING OF SERIAL PORTS IN SINGLE FLOW LINE (E.G., ANTI-SCORING) 211 SERIAL ALTERNATELY CLOSED PORTS 212 RELATIVELY MOVABLE VALVE ELEMENTS FORM SINGLE PORT CLOSURE (E.G., IRIS DIAPHRAGM) 213 MECHANICAL MOVEMENT ACTUATOR 214 .Particularly packed or sealed 215 .Plural motions of valve 216 ..Screw threads in flow path 217 ..Valve head between actuator and screw 218 ..Encased 219 ...Threadlessly coupled to screw 220 ....Coupling socket in screw 221 ...Threads in removable sleeve 222 ....Sleeve removably in bonnet 223 ....Sleeve is bonnet 224 ....Sleeve flange mounted between body and bonnet 225 ..Threads in removable sleeve 226 ..Biased 227 ...Spring 228 .With pivoted valves 229 .Plural dissimilar mechanical movements 230 .Ratchet 231 .Lever 232 ..Train (plural serial) 233 ..Leverage variable during operation 234 ..Adjustable leverage 235 ..Swiveled 236 ..Biased 237 ...Sliding contact 238 ....Spring 239 .....Spring co-axial with valve arm 240 ......Spring stop on valve stem 241 ......Spring abuts valve stem guide 242 ...Springg 243 ....Co-acts with lever 244 ....Co-axial with valve stem 245 .....Spring stop on valve stem 246 .....Spring abuts valve stem guide 247 ...Weight 248 .Gear 249 ..Mutilated or Geneva gearing 249.5 ..Worm type 250 ..Rectilinear rack 250.5 ..Mating segments 251 .Cam 252 ..Co-axial or parallel axes 253 ...Biased 254 ....Bi-directional 255 .....Non-reciprocating 256 ....Encased 257 ..Encased with seal 258 ...Bi-directional 259 ...Cam is finger-like extension 260 ...Overhung crank type 261 ...Center crank type 262 ..Biased 263 ...Spring 264 .Screw 265 ..Plural thread 266 ..Non-reciprocating actuator 267 ...Internal thread 268 ....Inverted cup-shape 269 .....Separable actuator bushing 270 ...Removable guide 271 ....Resiliently mounted actuator 272 ...Biased 273 ..Internal thread 274 ..Encased 275 ...Biased 276 ....Spring 277 ..Biased 278 ...Spring 279 .Linkage 280 ..Toggle 281 BALANCED VALVES 282 .Reciprocating 283 .Rotary 284 LIMIT STOP 285 .Adjustable 286 .Rotary valve 287 ..Stop element on head 288 ..Stop element on actuator 289 VALVE ACTUABLE FROM PLURAL POSITIONS 290 PLURAL SELECTIVE NEUTRAL POSITIONS FOR VALVE OR ACTUATOR 291 DETACHABLE ACTUATOR 292 .Rotary valve 293 EXTENSION FOR ACTUATOR 294 FLEXIBLE ACTUATOR (E.G., BOWDEN WIRE; CHAIN) 295 PEDAL ACTUATOR 296 PLURAL MOTIONS OF ACTUATOR 297 WITH FRICTION DETENT 298 PIVOTED VALVESS 299 .Terminal 300 ..Gate 301 .Gate 302 ..Bifaced 303 .Biased 304 ROTARY VALVES 305 .Butterfly 306 ..Head and/or seat packing 307 ...Adjustable 308 ..Head and stem connections 309 .Plug 310 ..Axial and radial bore 311 ...Lateral inlet and outlet 312 ..Retainer at actuator end 313 .Biased 314 .Seats and/or interface seals 315 R ..Ball valve 315 DU ...Having a particular hardness (i.e., durometric property) 315 MT ...Of specific materail 315 CE ....Ceramic (e.g., glass or fired clay) 315 NM ....Non-metallic 315 PV ...Having a swinging actuator 315 EC ...Eccentric seating 315 TR ...Including trunnion opposite axially extending actuating means 315 BE ....With removable trunnion cover 315 HU ...Housing construction 315 HZ ....Head removable perpendicular to flow passage 315 TE .....At the actuator side (i.e., top entry) 315 RC ....Assembled around the head 315 SE ....Head removable along the flow passage 315 NT ....Having inseperable head 315 BC ...Head construction 316 ..Replaceable 317 ...Deformable material 318 RECIPROCATING VALVE 319 .Push or pull operator 320 ..Biased 321 ...Spring 322 ....Spring stop on valve stem 323 ....Spring abuts valve stem guide 324 .Piston 325 ..With internal flow passage 326 .Gate 327 ..Bifaced 328 ..Seats 329 ..Bodies 330 .Actuator controlled stem seal 331 .Diaphragm 332 .Diverse material seal at valve interface 333 .Particular head and seat cooperation 334 ..Elastic deformation 335.1 HERMETIC FLEXIBLE WALL SEAL FOR ACTUATOR 335.2 .Diaphragm 335.3 .Bellows 336 BIASED VALVE 337 .Springs and spring retainerss 338 .Weight biased 339 VALVE ACTUATOR EXTENDING THROUGH FLUID INLET OR OUTLET 340 VALVE ACTUATOR SURROUNDING PIPE, INLET OR OUTLET 341 VALVE ACTUATOR IS VALVE CASING OR EXTENSION THEREOF 342 .Jointed or flexible wall 343 .Sleeve valve 344 ..Flow passage in sleeve 345 ..Rotary 346 .Plural motions of valve 347 .Reciprocating valve 348 .Biased valve 349 VALVE ACTUATOR IS INLET OR OUTLET 350 .Detachable tip 351 .Plural motions of valve 352 .Rotary 353 .Reciprocating spout 354 .Biased valve 355 WITH ACTUATION LUBRICATING MEANS 356 VALVE 357 .Removable seat engaging element 358 .Reinforced flexible material 359 .Seats 360 ..Removable 361 ...Mounted between casing sections 362 ...Compression or tension retained 363 ...With seal 364 ..Head engaging gasket 365 ..Retained by seat deformation 366 .Bodies 367 ..Sectional 368 .Materials 369 MISCELLANEOUS * ****************************** * CROSS-REFERENCE ART COLLECTIONS * ****************************** 900 VALVES WITH O-RINGS 901 CURTAIN TYPE VALVES 902 SPRINGS EMPLOYED AS VALVES 903 NEEDLE VALVES 904 SNAP FIT PLUG VALVES 905 MOVABLE COIL ELECTRICAL ACTUATOR (E.G., VOICE COIL)