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Class Number: 137 Class Title: FLUID HANDLING Subclass Subclass Number Title 1 PROCESSES 2 .With control of flow by a condition or characteristic of a fluid 3 ..Mixing of plural fluids of diverse characteristics or conditions 4 ...Controlled by consistency of mixture 5 ...Controlled by conductivity of mixture 6 ...Controlled by heat of combustion of mixture 7 ...Controlled by pressure 8 ..For producing uniform flow 9 ..For producing proportionate flow 10 ..By speed of fluid 11 ..For regulating boiler feed water level 12 ..By fluid pressure 12.5 .Carbonated beverage handling processes 13 .Affecting flow by the addition of material or energy 14 .Involving pressure control 15 .Cleaning, repairing or assembling 15.1 HIGHSPEED FLUID INTAKE MEANS (E.G., JET ENGINE INTAKE) 15.2 .With condition responsive control means 38 CONTROL BY CHANGE OF POSITION OR INERTIA OF SYSTEM 39 .With second control 40 .Position relative body of water (e.g., marine governors) 41 ..Float controlled 42 ..Pressure or head controlled 43 .Vent opening or closing on tipping container 44 .By shifting of liquid level 45 .By pendulum or swinging member 46 ..With servo connection to valve 47 SPEED RESPONSIVE VALVE CONTROL 48 .Acceleration responsive valve control 49 .With manual valve control 50 .Speed change and excess speed valve control 51 .With other condition responsive valve control 52 ..Governor drive failure responsive 53 .Centrifugal mass type (exclusive of liquid) 54 ..With multiple valves 55 ..Periodically actuated valve 56 ..Rotating valve and rotating governor 57 ..Excess speed responsive 58 ..With fluid servo-motor 59 FREEZE CONDITION RESPONSIVE SAFETY SYSTEMS 60 .With freeze waste 61 .Stop and waste 62 .Low temperature responsive drains 65 COMBUSTION FAILURE RESPONSIVE FUEL SAFETY CUT-OFF FOR BURNERS 66 .Thermo-electric 67 DESTRUCTIBLE OR DEFORMABLE ELEMENT CONTROL 68.1 .Frangible 68.2 ..Explosive actuation 69 ..With counter biasing element 70 ..Frangible element retains pressure responsive valve closedd 71 ..With pressure responsive valve 72 .Heat destructible or fusible 73 ..With second sensing means 74 ..In fluid flow path 75 ..Safety cut-off 76 ...With heater for destructible or fusible element 77 ...With external closing means 78.1 AMBIENT CONDITION CHANGE RESPONSIVE 78.2 .For controlling soil irrigation 78.3 ..Soil moisture sensing 78.4 .Burner gas cutoff 78.5 .Atmospheric 79 ..Temperature 80 ...With additional diverse control 81.1 ..Pressure 81.2 .Underwater 803 FLOW AFFECTED BY FLUID CONTACT, ENERGY FIELD OR COANDA EFFECT (E.G., PURE FLUID DEVICE OR SYSTEM) 804 .Responsive to condition external of system 805 ..And causing change or correction of sensed condition 806 .Utilizing diverse fluids 807 .Utilizing particular fluid 808 .Means to cause rotational flow of fluid (e.g., vortex generator) 809 ..Plural vortex generators 810 ..Vortex generator as control for system 811 ..Vortex generator in interaction chamber of device 812 ..By tangential input to axial output (e.g., vortex amplifier) 813 ...With means to vary input or output of device 814 .System comprising plural fluidic devices or stages 815 ..Plural power inputs (e.g., parallel inputs) 816 ...Variable or different-value power inputs 817 ....Pulsating power input and continuous-flow power input 818 ...With variable or selectable source of control-input signal 819 ...To cascaded plural devices 820 ....With feedback passage(s) between devices of cascade 821 ....With pulsed control-input signal 822 .Plural power inputs to single device 823 ..Intersecting at interaction region (e.g., comparator) 824 ...Co-lineal, oppositely-directed power inputs (e.g., impact modulator) 825 .Means to regulate or vary operation of device 826 ..To vary frequency of pulses or oscillations 827 ..By non-fluid energy field affecting input (e.g., transducer) 828 ...Acoustical or thermal energy 829 ..By movable element 830 ...Operating at timed intervals (e.g., to produce pulses) 831 ...Electrically-actuated element (e.g., electro-mechanical transducer) 832 ...Means (e.g., valve) in control input 833 .Structure of body of device 834 .Device including passages having V over T configuration 835 ..And feedback passage(s) or path(s) 836 ..With particular characteristics of control input 837 ...Multiple control-input passages 838 ..And multiple or joined power-outlet passages 839 ..And enlarged interaction chamber 840 ..And vent passage(s)) 841 .Device including passages having V over gamma configuration 842 .Device including linearly-aligned power stream emitter and power stream collector 82 PRESSURE MODULATING RELAYS OR FOLLOWERS 83 .Jet control type 84 .Plural series units 85 .With counter-balancing pressure feedback to the modulating device 86 ..With counter-counter balancing pressure feedback 87 SELF-PROPORTIONING OR CORRELATING SYSTEMS 88 .Mixture condition maintaining or sensing 89 ..Dividing and recombining flow 91 ..By specific gravity 92 ..By viscosity or consistency 93 ..By optical or chemical property 94 .Fuel controlled by boiler or water system condition 98 .Self-proportioning flow systems 99 ..Interconnected flow displacement elements 99.5 ...Movable trap chamber 100 ..Flow comparison or differential response 101 ...Flow dividers (e.g., reversely acting controls) 101.11 ...Main line flow displaces or entrains material from reservoir 101.19 ...With electrical controller 101.21 ..Flow displacement element actuates electrical controller 101.25 ..Liquid level response 101.27 ...Float controlled weir or valve 101.29 ...Swinging outlet pipe controller 101.31 ..With measuring type discharge assistant 102 .Supply and exhaust type 103 ..Vacuum or suction pulsator type (e.g., milking machine) 104 ...With trip linkage or snap action 105 ...With pulsation responsive pilot valve 106 ..Reversing or 4-way valve systems 107 ..Waste responsive to flow stoppage 109 .Self-controlled branched flow systems 110 ..Dividing and recombining 111 ..Plural inflows 112 ...Alternate or successive inflows 113 ....Control by depletion of source 114 ...One inflow supplements another 115 ..By-pass or relief controlled by main line condition 116 ...With pressure opening outlet valve 116.3 ...With pressure reducing inlet valve 116.5 ....Relief port through common sensing means 117 ...Responsive to change in rate of main line flow 118 ..Plural outflows 119 ...Alternate or successively substituted outflow 120 ....Control by filling auxiliary gravitating or float operating tank 121 ....Control by filling outlet tank or receiver 122 .....Float controlled 123 SIPHONS 124 .Plural 125 ..Tank truck mounted 126 ..Sequentially discharging in parallel 127 ...From plural tanks 128 ..Main siphon with auxiliary starting, stopping or resettingg siphon 129 ...Sinking or bucket-type float operated main siphon, float emptying auxiliary siphon 130 .With discharge-controlling receiver 131 ..With float 132 .Periodic or accumulation responsive discharge 133 ..With manual control 134 ..Control by filling auxiliary tank 135 ..Float-operated inlet to siphon 136 ..Release of trapped air 137 ...Through float-operated vent 138 ...Through liquid trap seal 139 ....Auxiliary liquid trap seal 140 .With strainer, filter, separator or sediment trap 141 .With recorder, register, signal, indicator or inspection window 142 .With flow starting, stopping or maintaining means 143 ..Siphon venting or breaking 144 ..With leakage or entrained air removal 145 ..Pressure applied to liquid in supply chamber 146 ..Plunge or immersion starting 147 ..Pump or liquid displacement device for flow passage 148 ...Piston 149 ....Co-axial within flow passage 150 ...Collapsible bulb 150.5 ..Siphon inlet movable to and from seat 151 ..With valve or closure in-flow passage 152 .With means for mounting and/or positioning relative to siphon chamber 153 .Elements 154 DIVERSE FLUID CONTAINING PRESSURE SYSTEMS 155 .Gas lift valves for wells 156 .Gas pressure discharge of liquids feed traps (e.g., to boiler) 157 ..Gas pressure controlled by amount of liquids in boiler or discharge receiver 158 ...Pressure connection at liquid level in boiler or discharge receiver 159 ..Gas pressure controlled by amount of liquid in trap 160 ...Plural trap chambers 161 ....Gravitating 162 ...Gravitating vessel 163 ....Sinking or bucket type float 164 ....Pivoted vessel with fluid passage through pivot 165 ...Float responsive 166 ....Liquid control valve positively actuated 167 ....Gas condensing type 168 ....Gas inlet and outlet valves unitary 169 ..Gas pressure controlled by manual or cyclic means 170 ...Movable trap chamber 170.1 .Foam control in gas charged liquids 170.2 ..Level or pressure responsive 170.3 ..Separate handling of foam 170.4 ..With conditioning trap or chamber 170.5 ...Recarbonation 170.6 ...With trap or chamber by-pass 171 .Fluid separating traps or vents 172 ..Liquids separated from liquid 173 ..Plural discriminating outlets for diverse fluidss 174 ...Common actuator for control valves 175 ...Choke or restricted passage gas bleed 176 ....From above liquid level 177 ..Discriminating outlet for liquid 178 ...With alternately operated inlet and outlet valves 179 ...With non-discriminating gas vent or liquid discharge 180 ....Abnormal pressure responsive liquid blow-off or drain 181 ....Manual control 182 ...With auxiliary inlet or by-pass valve 183 ...With fluid responsive valve 184 ....Successively opened valves 185 ....Gas collecting float (e.g., inverted bucket) 186 .....Downstream from valve 187 ....Level responsive 188 .....Weight or pressure 189 ......Gravitating vessel 190 .......Sinking or bucket type float 191 ........Servo-control 192 .....Float 193 ......With main line gas outlet from trap chamber 194 ......With outlet extending above liquid in trap 195 ......Servo-control 196 ......With pressure balanced outlet valve 197 ..Discriminating outlet for gas 198 ...With reverse flow stop or pressure regulating valve 199 ...Fluid sensing valve 200 ....With vaporized liquid stop 201 .....With separate return for condensate 202 ....Float responsive 203 ..With liquid emptying means 204 ...Self-emptying 205 .Liquid filling by evacuating container 205.5 .Main line flow displaces additive from shunt reservoir 206 .Gas pressure storage over or displacement of liquid 207 ..Surge suppression 207.5 ..With return of liquid to supply 208 ..Plural units 209 ..With gas maintenance or application 210 ...Gas carried by or evolved from liquid 211 ....Gas injectors 211.5 ...Gas injected by liquid pressure or flow 212 ...Unitary mounting for gas pressure inlet and liquid outlet 213 ..With liquid level responsive gas vent or whistle 214 ...Combined high and low level responsive 215 BACK FLOW PREVENTION BY VACUUM BREAKING (E.G., ANTI-SIPHON DEVICES) 216 .Air vent in liquid flow line 216.1 ..With liquid seal in liquid flow line 216.2 ...Automatic valve in vent line 217 ..Valved 218 ...With co-acting valve in liquid flow path 219 LARNER-JOHNSON TYPE VALVES; I.E., TELESCOPING INTERNAL VALVE IN EXPANDED FLOW LINE SECTION 220 .Line condition change responsive 221 .Internal servo-motor with internal pilot valve 222 ..Pilot controlled passage in nose or needle 223 INFLATABLE ARTICLE (E.G., TIRE FILLING CHUCK AND/OR STEM) 224 .With pressure-responsive pressure-control meanss 224.5 ..Pulsating 225 ..Diaphragm, bellows or expansible tube 226 ..Co-axial inflation and relief valves 227 .With gauge or indicator 228 ..With deflating means 229 ..Selectively connected 230 .Stem attached relief valve 231 .With coupling means 232 .With cap 233 ..Valve actuating, assembling or locking means on cap 234 ...Valve manually seated 234.5 .Removable valve head and seat unit (valve insides) 234.6 WITH VEHICLE GUIDE OR SUPPORT, E.G., SERVICE STATION 236.1 DISTRIBUTION SYSTEMS INVOLVING GEOGRAPHIC FEATURES 237 WITH CLEANER, LUBRICATION ADDED TO FLUID OR LIQUID SEALING AT VALVE INTERFACE 238 .Cleaning or steam sterilizing 239 ..Reverse fluid flow 240 ..With separate material addition 241 ..Steam sterilizing 242 ..Mechanical cleaning 243 ...Valve grinding motion of valve on seat 243.1 ....Concentric stem 243.2 ....Spring pressed 243.3 ....Lost motion permits grinding 243.4 ....With swivel-preventing means 243.5 ....Nut releasable from body and/or stem 243.6 ....With independent grinding actuator 243.7 .....Separable 244 ...Cleaning member reciprocates in passage 245 ....By-pass cleaning 245.5 ....Independent actuation 246 .Liquid supplied at valve interface 246.11 ..Plural feed 246.12 ..Line pressure feed 246.13 ..Feed by or with actuation 246.14 ..Loss control 246.15 ..Screw feed 246.16 ...With check valve 246.17 ....Excess relief 246.18 ....Jacking 246.19 ...Jacking 246.2 ...Seating 246.21 ..Spring biased piston feed 246.22 ..External pressure 246.23 ..Gravity or capillary feed 247 WITH LIQUID VALVES OR LIQUID TRAP SEALS 247.11 .Liquid seal in liquid flow line; flow liquid forms seal 247.13 ..Valves 247.15 ...Line condition change responsive 247.17 ....Plural valves or valve seats 247.19 ....Pivoted valve 247.21 ....Ball valve 247.23 .....Seats vertically up 247.25 ..Seal replenishers 247.27 ..Plural inlet 247.29 ..Divided and recombined passages 247.31 ..Tangential inlet floww 247.33 ..Downward partition encircles projecting outlet 247.35 ..Submerged inlet pipe end 247.37 ...Hinged seal bowl 247.39 ...Distinct seal bowl in flow line connected casing 247.41 ..U-seals 247.43 ...Topside access beneath cover plate closed floor opening 247.45 ...Enlarged upflow leg 247.47 ....Topside access opening 247.49 ...Even diameter legs 247.51 ....Access opening 248 .Seal for relatively movable valving parts 249 ..Horizontally moving valve 250 ...Rotary 251.1 .Liquid valves 252 ..Branched passage for sealing liquid 253 ..With auxiliary means for varying liquid level 254 ..With baffle 255 PLURAL TANKS OR COMPARTMENTS WITH PARALLEL FLOW 256 .Sequentially filled and emptied (e.g., holding type) 257 ..With relative rotation of tank group and filling head 258 ...With rotary filling and emptying head 259 .With housings, supports or stacking arrangements 260 .Battery or electrolytic cell replenishment 261 ..Barometric supply 262 .Flow dividing compartments 263 .Tank type manifold (i.e., one tank supplies or receives from at least two others) 264 .Tank within tank 265 .With cross connecting passage 266 .With manifold or grouped outlets 267 ..Tank truck type 268 WITH HOLDER FOR SOLID, FLAKY OR PULVERIZED MATERIAL TO BE DISSOLVED OR ENTRAINED 269 CONVERTIBLE 269.5 .Reversible check 270 .Unit orientable in a single location between plural positions 270.5 ..Reversible stop and vent or waste 271 .Units interchangeable between alternate locations 272 HYDRANT TYPE 273 .Water crane type 274 ..Spout operated valve 275 ..Rotating riser 276 ...Spout articulated to riser 277 ...Vertically movable riser 278 ..Extensible spout 279 ..Spout articulated to riser 280 .Plural riser 281 .Expansible chamber operated by valve actuator for draining riser 282 .With pump or ejector 283 .Removable valve and valve seat 284 ..With extension to facilitate removal 285 .Removable valve with supplemental check valve 286 .Movable riser actuated valve 287 ..Reciprocating riser 288 ...Piston type valve 289 .Balanced valve 290 .Valve actuator extends laterally from bottom of riserr 291 .Valve actuator outside riser 292 ..Lever actuator 293 ..With casing, flush with ground or pavement surface 294 .With casing 295 ..Flush with ground or pavement surface 296 ..Cap, cover or hood 297 ..With heater 298 .With actuator lubricating means 299 .With valve at outlet 300 .With supplemental valve 301 .Protection against freezing 302 ..Stop and waste 303 ...With disabling means 304 ...Separate relatively movable valves with single actuator 305 ....Unidirectional abutting connection between main valve or actuator and waste valve 306 ....With screw or gear in actuating mechanism 307 ...Reciprocating relatively fixed valves 308 ....Waste through lower valve guide 309 REVERSING VALVES - REGENERATIVE FURNACE TYPE 310 .With cooling 311 .Rotary reversing valve 312 WITH LEAKAGE OR DRIP COLLECTING 313 .Relatively movable receptacle or drain pipe and outlet 314 .Collector for waste liquid derived from solid, gas or vapor 315 WITH REPAIR, TAPPING OR ASSEMBLY MEANS 316 .With holding means functioning only during transportation assembly or disassembly 317 .Tapping a pipe, keg, or apertured tank under pressure 318 ..With aperture forming means 319 ..Imperforate closure removing and holding tap 320 ..With valved closure or bung 321 ...Combined rotary and longitudinal movement of valve 322 ...Longitudinal movement of valve 323 ...Rotary movement of valve 324 ..With core ejectors 325 ...Impact operated 326 .Foot valve extraction from top of enclosure 327 .With disassembly tool engaging feature 328 ..Wrench engaging lugs 329 .With provision of alternate wear parts 329.01 ..Valve heads and/or seats 329.02 ...Opposite duplicate surfaces of unitary structure 329.03 ....Homogeneous material 329.04 .....Valve heads 329.05 ...Different portions of continuous surfaces 329.06 ...Successively used adjacent independent elements 329.1 .Removable valve with normally disabled supplemental check valve 329.2 ..Check valve disabled by normally movable main valve part 329.3 ...Ball check 329.4 ...Spring bias 330 NON-VALVING MOTION OF THE VALVE OR VALVE SEAT 331 .Rotary motion of a reciprocating valve 332 ..Turbine on valve 333 ..Manual rotating means 334 WITH HEATING OR COOLING OF THE SYSTEM 335 .With burnerr 336 ..Flue extending through fluid 337 .Hot and cold water system having a connection from the hot to the cold channel 338 .Air heated or cooled (fan, fins, or channels) 339 .With diversion of part of fluid to heat or cool the device or its contents 340 .Circulating fluid in heat exchange relationship 341 .With electric heating element 342 WITH FLUID SYSTEM SUPPORT FOR WORKMAN OR NON-SYSTEM MATERIAL 343 WITH CASING, SUPPORT, PROTECTOR OR STATIC CONSTRUCTIONAL INSTALLATIONS 899 .Vehicle 345 ..Locomotive 346 ...Boiler or steam dome 347 ..Railway car 348 ...Car frame 349 ...End of car 350 ...Roof, wall or floor 351 ..Automotive 352 ...Steering post or wheel 353 ...Dash 354 ...Floor or frame 355 ...Fender or running board 355.12 ..With hose reel storage means 899.1 ..Guided by means of track or guideway 899.2 ..Aerial or water-supported (e.g., airplane or ship, etc.) 899.3 ..With retractable or nonuse-positionable support wheel 899.4 ..Vehicle supports fluid compressor and compressed fluid storage tank 355.16 .With hose storage or retrieval means 355.17 ..With means for plural hoses 355.18 ..With flow regulation responsive to hose movement 355.19 ...Reel type 355.2 ..With retrieval means 355.21 ...Power stop or brake 355.22 ....Responsive to position of hose in casing 355.23 ...Biased to retracted position 355.24 ....Boom type 355.25 ....Weighted 355.26 ..Reel with support therefor 355.27 ...Ground supported 355.28 ..Basket or holder for folded coiled hose 356 .Static constructional installations 357 ..Buildings 358 ...Outside access to portions of the system 359 ...Escutcheon type support 360 ...Wall 361 ....Recessed gas outlet box 362 ...Floor installation 363 ..Ground supporting enclosure 364 ...Valve and meter wells 365 ....With means to center well on valve 366 .....Detachable base plate 367 .....Vertical casing aligned by valve casing 368 ....Combined with actuator 369 .....Telescopic well casing 370 ....Telescopic well casing 371 ....Coverss 372 ...Pipe line transport 373 ..Tapering or tower type 374 .Furniture and housing furnishings 375 .Jacketed 376 .Tank supports 377 .Guards and shields 378 ..Resilient abutment for preventing breakage 379 ..Nozzle abutment for scratch or damage prevention 380 ..Cover for beer cooler aperture for faucet 381 ..Sanitary covers or shields 382 ..Valve guards 382.5 ...With means for accommodating a detachable actuator 383 WITH LOCK OR SEAL 384 .With seal 384.2 .Common lock and valve actuator 384.4 ..Combination lock 384.6 ..Biased valve 384.8 ..Mechanical movement between lock and valve 385 .Locks against rotary motion 386 LIQUID LEVEL RESPONSIVE OR MAINTAINING SYSTEMS 387 .Washing machine cycle control 388 .Liquid excluding devices for gas inlet or outlets 389 .With second diverse control 390 ..Manual control 391 .Control of both inflow and outflow of tank 392 .Electrical characteristic sensing 393 .With control fluid connection at desired liquid level 395 .Control of outflow from tank 396 ..Self-emptying tanks 397 ...By float 398 ..By float 399 ...Low level safety cut-off 400 .With supplemental or safety closing means or bias 401 ..Sinking or bucket type float 402 ..Gravitating tank 403 .By weight of accumulated fluid 404 ..In sinking or bucket type float 405 ..Oil burner fuel overflow preventing safety cut-offs 406 ..In communicating measuring vessel 407 ...Top and bottom connections 408 ..In gravitating tank 409 .By float controlled valve 410 ..Valve opened by external means, closing or closing control by float 411 ..Single float controls plural valves 412 ..Servo relay operation of control 413 ...Fluid pressure 414 ....Flexible diaphragm valve 415 ....From tank 416 ..Quick acting 417 ...Pilot float released 418 ...Over center mechanism 419 ....Shifting weight 420 ...Trip mechanism 421 ....Weight or spring bias 422 ...Lost motion mechanism 423 ..Plural floats 424 ..With counter-balancee 425 ...Within tank 426 ..Level adjustment or selection means 427 ..With float leakage disposal 428 ..In separate communicating float chamber 429 ..Rectilinearly traveling float 430 ...Float co-axial with valve or port 431 ....Float is spreader or anti-splash means 432 ....Float surrounds inlet pipe 433 ....Float rigid with valve 434 ..Float arm operated valve 435 ...With valve retarder or cushion means 436 ...With flow guide or restrictor 437 ....External hood or deflector or annular outlet surrounding the inlet pipe 438 ...Movable nozzle or inlet terminal 439 ...Valve removable from outside container 440 ...With U-shaped inlet pipe having terminal valve 441 ...With refill pipe 442 ...Assembly mounted on and having reciprocating valve element co axial with inlet pipe 443 ....Horizontal or side entering pipe 444 ....Vertical inlet riser 445 ...With toggle or second lever connected to valve 446 ...With interposed cam, gear or threaded connection 447 ...Rotary valve element 448 ...Pivoted valve 449 ...Ball valves 450 ...Balanced valves 451 ...Flexible valve 453 .Barometric 454 ..With shut-off between supply tank and receiver 454.2 REMOVABLE VALVE HEAD AND SEAT UNIT 454.4 .Pump type 454.5 .Threaded into valve casing 454.6 .Retained by bonnet or closure 455 LINE CONDITION CHANGE RESPONSIVE VALVES 456 .Safety cut-off requiring reset 457 ..Thermal 458 ..Responsive to both high and low pressure or velocity 459 ..Responsive to change in rate of flow 460 ...Excessive flow cut-off 461 ..High pressure cut-off 462 ..Reset by pressure equalization valve or by-pass 463 ..Fluid released trip 464 ..Fluid counter-biased or unseated valve 465 ...With mechanical stop against reopening 466 ...With fluid pressure seating of valve 467 .Fluid opened valve requiring reset 467.5 .Consistency responsive 468 .Thermal responsive 469 .Pop valves 470 ..Pop closing valves 471 ..Pop pressure reactor in inflow to valve 472 ..Pop pressure reactor in branched released path 473 ...Separate relief valves or valves for each branch 474 ..Lost motion between pop pressure reactor and valve 475 ..Adjustable choke 476 ...Annular lip or bafflee 477 ....On movable valve part 478 ....Screw threaded 479 .Combustion engine induction type 480 ..Valve in auxiliary inlet to induction line 481 ..With manual modifier 482 ..With suction compensator 483 ..With separate reactor surface 484 ..Unbalanced pivoted valve (e.g., unbalanced butterfly type) 484.2 .Line flow effect assisted 484.4 ..Reactor surface normal to flow 484.6 ..Reactor surface separated from flow by apertured partition 484.8 ...Through separate aperture 485 .Pilot or servo controlled 486 ..Responsive to change in rate of fluid flow 487 ...Control by pressures across flow line valve 487.5 ..Electrically actuated valve 488 ..Fluid pressure type 489 ...Choked or throttled pressure type 490 ....Pilot valve within main valve head 491 ....Choked passage through main valve head 489.3 ....Loose fitting piston 489.5 ....Pilot controls supply to pressure chamber 492 ...Single acting fluid servo 492.5 ....Spring biased 493 .Bi-directional flow valves 493.1 ..One head and seat carried by head of another 493.2 ...Supporting valve only spring biased 493.3 ...Supporting valve spring carried by supporting valve 493.4 ....Spring stop on supported valve stem 493.5 ....Spring abuts guide for supported valve stem 493.6 ...Both valves spring biased 493.7 ..Axes of ports perpendicular 493.8 ..Axes of ports parallel 493.9 ..Axes of ports co-axial 494 .With separate connected fluid reactor surface 495 ..With manual or external control for line valve 496 ..Valve closes in responses to reverse flow 497 ..Responsive to change in rate of fluid flow 498 ...Valve closes in response to excessive flow 499 ...Turbine or swinging vane type reactor 500 ...Expansible chamber subject to differential pressures 501 ....Pressures across fixed choke 502 ....With Venturi tube having a connection to throat 503 ....Pressures across flow line valve 504 ...Movable deflector or choke 505 ..With opening bias (e.g., pressure regulator) 505.11 ...With relief valve 505.12 ...Multi-stage 505.13 ...Senses inlet pressure 505.14 ...Bias variable during operation 505.15 ....Ancillary reactor surface responds to inlet pressure 505.16 ....Liquid transfer 505.17 ....Weight 505.18 ...Balanced valve 505.19 ...Liquid level responsive gas flow control 505.2 ...With protective separator 505.21 ...Main flow through isolated reactor chamberr 505.22 ...Through external pipe 505.23 ....Modified valve casing 505.24 ....Adjustable external lever 505.25 ...Apertured reactor surface surrounds flow line 505.26 ...Reactor surface separated by apertured partition 505.27 ....In valve stem 505.28 .....Also through reactor surface 505.29 ....Valve stem passes through the aperture 505.3 .....Plural reactor surfaces 505.31 .....Reactor is an inverted cup having liquid seal 505.32 ......With movement dampener 505.33 ......Valve head in inlet chamber 505.34 .....Valve head in inlet chamber 505.35 ......Rectilinear valve stem rigid with reactor surface 505.36 ....Reactor surface is diaphragm 505.37 .....With valve closing bias 505.38 ...Reactor surface closes chamber 505.39 ....Valve head in inlet chamber 505.4 .....Reactor surface is inverted cup (float) 505.41 .....Rectilinear valve stem rigid with reactor surface 505.42 .....With valve closing bias 505.43 ......In reactor chamber 505.44 ....Valve head on yoke 505.45 .....Yoke has valve closing bias 505.46 ....Reactor operatively connected to valve by mechanical movement 505.47 ...With mechanical movement between actuator and valve 506 ..Plural valves biased closed 507 ..With means for mounting or connecting to system 508 ..Valve seat or external sleeve moves to open valve 509 ..Valve seating in direction of flow 510 ...Flexible diaphragm or bellows reactor 511 .Direct response valves (i.e., check valve type) 512 ..Plural 512.1 ...Dividing and recombining in a single flow path 512.15 ....Integral resilient member forms plural valves 512.2 ...One valve carries head and seat for second valve 512.3 ...Diverse types 512.4 ...Integral resilient member forms plural valves 512.5 ...With common biasing means 513 ...Mechanically interconnected 513.3 ..With leak passage 513.5 ...Permits flow at valve interface 513.7 ...Bypass in valve casing 514 ..With retarder or dashpot 514.3 ...End of valve forms dashpot chamber 514.5 ...End of valve moves inside dashpot chamber 514.7 ....Enlarged piston on end of valve stem 515 ..In couplings for coaxial conduits, e.g., drill pipe check valves 515.3 ...Valve seat threaded into a coupling element 515.5 ...Valve seat formed on or carried by a coupling element 515.7 ...Valve seat clamped between coupling elements 516 ..With means for selecting area of valve or seat 516.11 ..Single head, plural ports in parallel 516.13 ...Concentric ports 516.15 ...Annular head 516.17 ....Central post on seatt 516.19 .....Stop 516.21 ......With guide 516.23 .....Guide 516.25 ..Plural seating 516.27 ...Sequential 516.29 ....Resilient gasket 517 ..Biased open 518 ...Oppositely swinging vanes 519 ...Weight biased 519.5 ....Ball valves 520 ....Edge pivoted valve 521 ...Pivoted valves 522 ..With external means for opposing bias 523 ...With means for retaining external means in bias opposing position 524 ..With bias adjustment indicator 843 ..Resilient material valve 844 ...Having expansible port 845 ....Apertured plate 846 ....Having exit lip 847 .....With biasing means 848 .....Side vent 849 .....Multiple slit 850 .....Internally extending mount 851 ...Center flexing strip 852 ...With valve member flexing about securement 853 ....Sleeve 854 ....Central mount 855 ....Flap or reed 856 .....With stop 857 .....With spring 858 .....With weight 859 ....Peripherally secured diaphragm 860 ...Annulus 526 ..Vacuum relief type 527 ..Pivoted valves 527.2 ...Head retained by removable closure 527.4 ...Valve head movably connected for accommodation to seat 527.6 ...Valve mounted on end of pipe 527.8 ...Weight biased 528 ..Reciprocating valves 529 ...Plural biasing means 530 ...Cam means for adjusting and fixing bias 531 ...Varying effective lever arm 532 ...Weight biased 533 ....Valve body is the weight 533.11 .....Ball valves 533.13 ......Removable cage 533.15 ......Separable seat 533.17 .....Guided head 533.19 ......Cage 533.21 ......Guide stem 533.23 .......With closing stop 533.25 .......Oppositely disposed 533.27 .......Head slidable on guide rod 533.29 .......Guide and seat integral unit 533.31 .......Guide and closure integral unit 534 ....Weight coaxial with valvee 535 ...Spring biased 536 ....With means to protect spring from fluid 537 ....Spring under tension 538 ....Piston-type valves 539 ....Ball valves 539.5 .....With follower 540 ....Spring coaxial with valve 540.11 .....Broken valve parts retainer 541 .....Spring in inlet 542 .....Valve stem extends through fixed spring abutment 543 ......Yoke or cage-type support for valve stem 543.13 .....Spring abuts removable valve stem guide 543.15 .....Head slides on guide-rod concentric with spring 543.17 .....Spring guides valve head 543.19 .....Cage-type guide for stemless valves 543.21 .....Guide means integral and coplanar with valve disk 543.23 .....Head between spring and guide 544 WITH MEANS FOR SEPARATING SOLID MATERIAL FROM THE FLUID 545 .Plural separating elements 546 .Sediment chamber 547 .Movable strainer 549 .Hollow strainer, fluid inlet and outlet perpendicular to each other 550 .Planar strainer normal to flow path 551 WITH INDICATOR, REGISTER, RECORDER, ALARM OR INSPECTION MEANS 552 .Plural 552.5 ..Unobvious - "combination lock" type 552.7 .Time 553 .Position or extent of motion indicator 554 ..Electrical 555 ..Selection from plural branches 556 ..Indicator element rigidly carried by the movable element whose position is indicated 556.3 ...Movable indicator element is a pointer 556.6 ....Pointer integral with handle 557 .Fluid pressure responsive indicator, recorder or alarm 558 .Liquid level responsive indicator, recorder or alarm 559 .Inspection means 560 COMBINED 561 R SYSTEMS 562 .Faucet connected, sink drained 563 .Closed circulating system 564 ..With thermal circulating means (thermo-siphons) 564.5 .Main line as motive fluid for follower-type feeder 565 .With pump 565.1 ..Downstream cyclic distributor 565.2 ...Distributor part unitary with movable pump part 566 ..Plural 567 ...Parallel 568 ..With reserve or surge receiving means 569 ..With pump bypass 570 ..Drain valve actuator mounted on pump 571 .Plural tanks or compartments connected for serial flow 572 ..Separable with valved-connecting passage 573 ..Fluid progresses by zigzag flow 574 ..Plural compartments formed by baffles 575 ..Plural top-to-bottom connected tanks 576 ..With communicating opening in common walls of tanks orr compartments 577 .Tank with movable or adjustable outlet or overflow pipe 577.5 ..Horizontally traversing outlet 578 ..Float-supported outlet 579 ..Swinging outlet pipe or spout 580 .With running joint between movable parts of system 581 .Movable tank 582 .With antisplash means not in flow passage 583 .System with plural openings, one a gas vent or access opening 584 ..Access and outlet 585 ...Tank access opening and bottom outlet 586 ....Access opening interlock or telltale on outlet valve actuator 587 ..Tank with gas vent and inlet or outlet 588 ...Vent and inlet or outlet in unitary mounting 589 ..With vented outlet 590 .Tank with internally extending flow guide, pipe or conduit 590.5 ..Nondraining overflow type 591 ..Inverted "U" passage 592 ..Inlet internally extending 593 .Head-establishing standpipe or expansion chamber (e.g., surge tanks) 624.11 .Programmer or timer 624.12 ..With independent valve controller 624.13 ..Repeating cycle 624.14 ...Self-cycling 624.15 ...Variable 624.16 ....Attachable and removable element 624.17 ....Adjustable cam 624.18 ..Plural, sequential, valve actuations 624.19 ...Plural trips or trip actuations 624.2 ...Variable cycle 624.21 ..Clock alarm mechanism controlled 624.22 ..Biased latch, cam operated 624.27 .Line condition change responsive release of valve 625 .Multi-way valve unit 625.11 ..Sequential distributor or collector type 625.12 ..Sequentially progressive opening or closing of plural ports 625.13 ...With subsequent closing of first port 625.14 ....Flow combining with flow dividing 625.15 ....Rotary 625.16 .....Plug 625.17 ..Selective reciprocation or rotation 625.18 ..Plural noncommunicating flow paths 625.19 ...Rotary plug 625.2 ..Supply and exhaust 625.6 ...Pilot-actuated 625.61 ....Variable orifice-type modulator 625.62 .....Opposed orifices; interposed modulator 625.63 ....Common to plural valve motor chambers 625.64 ....Electric 625.65 ...Motor-operated 625.66 ....Fluid motor 625.21 ...Rotary valve 625.22 ....Plug type 625.23 .....For plural lines 625.24 .....Axial and radial floww 625.25 ...Reciprocating valve 625.26 ....Combined disk or plug and gate or piston 625.27 ....Plural disk or plug 625.67 ....Piston valve 625.68 .....With internal flow passage 625.69 .....With annular passage (e.g., spool) 625.28 ..Dividing into parallel flow paths with recombining 625.29 ...Valve with bypass connections 625.3 ...With metering feature 625.31 ...Rotary 625.32 ....Plug 625.33 ...Reciprocating 625.34 ....Spool 625.35 .....With internal passage 625.36 .....Unequal heads 625.37 ....Piston 625.38 .....With internal flow passage 625.39 ......Sequential opening or closing of serial ports in single flow line 625.4 ..Multiple inlet with single outlet 625.41 ...Rotary valve 625.42 ..Selective opening of plural ports 625.43 ..Four port reversing valves 625.44 ..Pivoted valve unit 625.45 ...Gate 625.46 ..Rotary valve unit 625.47 ...Plug 625.48 ..Reciprocating valve unit 625.49 ...Combined disk or plug and gate or piston 625.5 ...Plural disk or plug 626 .Plural petcocks 627 .Sequential distributor or collector type 627.5 .Sequentially closing and opening alternately seating flow controllers 628 .Sequentially progressive opening or closing of plural valves 629 ..Pressure equalizing or auxiliary shunt flow 630 ...One valve seats against other valve (e.g., concentric valves) 630.11 ....Locomotive throttle 630.12 ....Gate 630.13 ....With balancing chamber 630.14 ....First valve moves second valve 630.15 ....Actuator moves both valves 630.16 ..With subsequent closing of first opened port 630.17 ...Simultaneously moved port controllers 630.18 ..Screw-actuated differential valves 630.19 ..Lost motion 630.2 ...Cam determines sequence 630.21 ...Rotary concentric valves 630.22 ...First valve actuates second valve 635 .With preselecting means for plural valve actuator 636 .With selective motion for plural valve actuator 636.1 ..Oppositely movable cam surfaces 636.2 ..Rotation about either of two pivotal axes 636.3 ..Rotation of actuator arm about its pivot and its axis 636.4 ..Reciprocation along and rotation about same axis 637 .Valves with separate, correlated, actuators 637.05 ..Correlated across separable flow path jointt 637.1 ..Interlocked 637.2 ..Coaxial stems 637.3 ...Rotary 637.4 ....And reciprocating 637.5 ....Concentric, central valve removable 594 .Plural noncommunicating flow paths 595 ..With common valve operator 596 .Supply and exhaust 596.12 ..With bypass 596.13 ...Controlled by supply or exhaust valve 596.14 ..Pilot-actuated 596.15 ...Common to plural valve motor chambers 596.16 ...Electric 596.17 ..Motor 596.18 ...Fluid motor 596.1 ..Biased exhaust valve 596.2 ...Biased closed 597 .Multiple inlet with multiple outlet 598 .Hydraulic brake line (e.g., hill holders) 599 .Dividing into parallel flow paths with recombining 599.1 ..Flow passage with bypass connections 599.2 ..Second valve assembly carried by first valve head 600 ..With foam controlling means (e.g., beer, soda faucets) 601 ..With common operator for valve in each path 602 .Multiple inlet with single outlet 603 ..Faucet attachment 888 ..Combining by aspiration 889 ...Combining of three or more diverse fluids 890 ...Plural motivating fluid jets 891 ...Flow control by varying position of a fluid inlet relative to entrainment chamber 892 ...With selectively operated flow control means in inlet 893 ....Flow control means is located in aspirated fluid inlet 894 .....Single actuator operates flow control means located in both motivating fluid and aspirated fluid inlets 895 ...With condition responsive valve 896 ..With means to promote mixing or combining of plural fluids 897 ...With selectively operated flow control means 898 ....Single actuator operates plural flow control means 605 ..With flow control 606 ...Valve in each inlet 607 ....With common valve operator 861 .With flow control means for branched passages 862 ..With common valve operator 863 ...For valve having a flexible diaphragm valving member 864 ...For valve having a ball head 865 ...With gearing 866 ...Threaded actuator 867 ...Pivoted or rotary motion converted to reciprocating valve head motion 868 ....Spring biased 869 ...Having fluid actuator 870 ...With electrical actuation 871 ...Spring biased 872 ..With valve or movable deflector at junction 873 ...Movable deflector spout in lateral port 874 ...Valve or deflector is tubular passageway 875 ...Pivoted valve or deflectorr 876 ...Rotary valve or deflector 877 ..Biased valved 878 ...Spring bias 879 ....For valve having a ball head 880 ....With threaded actuator 881 ....Spring coaxial with valve 882 .....Biased open 883 ..Single inlet with multiple distinctly valved outlets 884 ..Sectional block structure 885 ..With fluid actuator 886 ..With threaded actuator 887 ..Containing rotary valve 613 .Flow path with serial valves and/or closures 614 ..Separable flow path section, valve or closure in each 614.01 ...Common joint and valve seat faces, or sections joined by closing members 614.02 ...Each valve and/or closure operated by coupling motion 614.03 ....Linear motion of flow path sections operates both 614.04 .....Valves actuate each other 614.05 ...Valve- or closure-operated by coupling motion 614.06 ...Coupling interlocked with valve, or closure or actuator 614.11 ..Common actuator 614.12 ...Delivery cock with terminal valve 614.13 ...Alternately seating 614.14 ....Biased valve 614.15 ...Opposed screw 614.16 ..One valve head provides seat for other head 614.17 ...Also carries head of other valve 614.18 ..One valve head carries other valve head 614.19 ..Biased valve with external operator 614.2 ..Direct response normally closed valve limits direction of flow 614.21 ..Coaxial oppositely directed seats 615 .Articulated or swinging flow conduit 616 ..Actuates valve 616.3 ...Plural motions of valve 616.5 ...Reciprocating valve 616.7 ...Rotary valve 561 A .Non-valved flow dividers 797 FRANGIBLE 798 WITH COUPLING 799 .Flexible 800 WITH CLOSURE 801 FAUCETS AND SPOUTS 802 MISCELLANEOUS * ****************************** * CROSS-REFERENCE ART COLLECTIONS * ****************************** 900 BUMPLESS MANUAL TO AUTOMATIC RELAYS 901 BIASED BALL VALVES WITH OPERATORS 902 SLUSH PUMP CHECK VALVES 903 RUBBER VALVE SPRINGS 904 CUSHION CHECK VALVES 905 ROTARY VALVES FOR MULTIPLE GAS BURNERS 906 VALVES BIASED BY FLUID "SPRINGS" 907 VACUUM-ACTUATED VALVES 908 RESPIRATOR CONTROL 909 MAGNETIC FLUID VALVEE