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Classification Resources
 
Class   137FLUID HANDLING
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[List of Pre Grant Publications for class 137 subclass 1][List of Patents for class 137 subclass 1]1 PROCESSES
[List of Pre Grant Publications for class 137 subclass 2][List of Patents for class 137 subclass 2]2 Subclass 2 indent level is 1 With control of flow by a condition or characteristic of a fluid
 [List of Pre Grant Publications for class 137 subclass 12.5][List of Patents for class 137 subclass 12.5]12.5 Subclass 12.5 indent level is 1 Carbonated beverage handling processes
 [List of Pre Grant Publications for class 137 subclass 13][List of Patents for class 137 subclass 13]13 Subclass 13 indent level is 1 Affecting flow by the addition of material or energy
 [List of Pre Grant Publications for class 137 subclass 14][List of Patents for class 137 subclass 14]14 Subclass 14 indent level is 1 Involving pressure control
[List of Pre Grant Publications for class 137 subclass 15.01][List of Patents for class 137 subclass 15.01]15.01 Subclass 15.01 indent level is 1 Cleaning, repairing, or assembling
[List of Pre Grant Publications for class 137 subclass 15.1][List of Patents for class 137 subclass 15.1]15.1 HIGHSPEED FLUID INTAKE MEANS (E.G., JET ENGINE INTAKE)
[List of Pre Grant Publications for class 137 subclass 38][List of Patents for class 137 subclass 38]38 CONTROL BY CHANGE OF POSITION OR INERTIA OF SYSTEM
[List of Pre Grant Publications for class 137 subclass 47][List of Patents for class 137 subclass 47]47 SPEED RESPONSIVE VALVE CONTROL
[List of Pre Grant Publications for class 137 subclass 59][List of Patents for class 137 subclass 59]59 FREEZE CONDITION RESPONSIVE SAFETY SYSTEMS
[List of Pre Grant Publications for class 137 subclass 65][List of Patents for class 137 subclass 65]65 COMBUSTION FAILURE RESPONSIVE FUEL SAFETY CUT-OFF FOR BURNERS
[List of Pre Grant Publications for class 137 subclass 67][List of Patents for class 137 subclass 67]67 DESTRUCTIBLE OR DEFORMABLE ELEMENT CONTROLLED
[List of Pre Grant Publications for class 137 subclass 78.1][List of Patents for class 137 subclass 78.1]78.1 AMBIENT CONDITION CHANGE RESPONSIVE
[List of Pre Grant Publications for class 137 subclass 803][List of Patents for class 137 subclass 803]803 FLOW AFFECTED BY FLUID CONTACT, ENERGY FIELD OR COANDA EFFECT (E.G., PURE FLUID DEVICE OR SYSTEM)
[List of Pre Grant Publications for class 137 subclass 804][List of Patents for class 137 subclass 804]804 Subclass 804 indent level is 1 Responsive to condition external of system
 [List of Pre Grant Publications for class 137 subclass 806][List of Patents for class 137 subclass 806]806 Subclass 806 indent level is 1 Utilizing diverse fluids
 [List of Pre Grant Publications for class 137 subclass 807][List of Patents for class 137 subclass 807]807 Subclass 807 indent level is 1 Utilizing particular fluid
[List of Pre Grant Publications for class 137 subclass 808][List of Patents for class 137 subclass 808]808 Subclass 808 indent level is 1 Means to cause rotational flow of fluid (e.g., vortex generator)
[List of Pre Grant Publications for class 137 subclass 814][List of Patents for class 137 subclass 814]814 Subclass 814 indent level is 1 System comprising plural fluidic devices or stages
[List of Pre Grant Publications for class 137 subclass 822][List of Patents for class 137 subclass 822]822 Subclass 822 indent level is 1 Plural power inputs to single device
[List of Pre Grant Publications for class 137 subclass 825][List of Patents for class 137 subclass 825]825 Subclass 825 indent level is 1 Means to regulate or vary operation of device
 [List of Pre Grant Publications for class 137 subclass 833][List of Patents for class 137 subclass 833]833 Subclass 833 indent level is 1 Structure of body of device
[List of Pre Grant Publications for class 137 subclass 834][List of Patents for class 137 subclass 834]834 Subclass 834 indent level is 1 Device including passages having V over T configuration
 [List of Pre Grant Publications for class 137 subclass 841][List of Patents for class 137 subclass 841]841 Subclass 841 indent level is 1 Device including passages having V over gamma configuration
 [List of Pre Grant Publications for class 137 subclass 842][List of Patents for class 137 subclass 842]842 Subclass 842 indent level is 1 Device including linearly-aligned power stream emitter and power stream collector
[List of Pre Grant Publications for class 137 subclass 82][List of Patents for class 137 subclass 82]82 PRESSURE MODULATING RELAYS OR FOLLOWERS
[List of Pre Grant Publications for class 137 subclass 87.01][List of Patents for class 137 subclass 87.01]87.01 SELF-PROPORTIONING OR CORRELATING SYSTEMS
[List of Pre Grant Publications for class 137 subclass 88][List of Patents for class 137 subclass 88]88 Subclass 88 indent level is 1 Mixture condition maintaining or sensing
 [List of Pre Grant Publications for class 137 subclass 94][List of Patents for class 137 subclass 94]94 Subclass 94 indent level is 1 Fuel controlled by boiler or water system condition
[List of Pre Grant Publications for class 137 subclass 98][List of Patents for class 137 subclass 98]98 Subclass 98 indent level is 1 Self-proportioning flow systems
[List of Pre Grant Publications for class 137 subclass 102][List of Patents for class 137 subclass 102]102 Subclass 102 indent level is 1 Supply and exhaust type
[List of Pre Grant Publications for class 137 subclass 109][List of Patents for class 137 subclass 109]109 Subclass 109 indent level is 1 Self-controlled branched flow systems
 [List of Pre Grant Publications for class 137 subclass 110][List of Patents for class 137 subclass 110]110 Subclass 110 indent level is 2 Dividing and recombining
[List of Pre Grant Publications for class 137 subclass 111][List of Patents for class 137 subclass 111]111 Subclass 111 indent level is 2 Plural inflows
[List of Pre Grant Publications for class 137 subclass 115.01][List of Patents for class 137 subclass 115.01]115.01 Subclass 115.01 indent level is 2 Bypass or relief controlled by main line fluid condition
[List of Pre Grant Publications for class 137 subclass 118.01][List of Patents for class 137 subclass 118.01]118.01 Subclass 118.01 indent level is 2 Plural outflows
 [List of Pre Grant Publications for class 137 subclass 87.02][List of Patents for class 137 subclass 87.02]87.02 Subclass 87.02 indent level is 1 Liquid level responsive
[List of Pre Grant Publications for class 137 subclass 87.03][List of Patents for class 137 subclass 87.03]87.03 Subclass 87.03 indent level is 1 Flow rate responsive
[List of Pre Grant Publications for class 137 subclass 87.05][List of Patents for class 137 subclass 87.05]87.05 Subclass 87.05 indent level is 1 Plural sensors
[List of Pre Grant Publications for class 137 subclass 123][List of Patents for class 137 subclass 123]123 SIPHONS
[List of Pre Grant Publications for class 137 subclass 154][List of Patents for class 137 subclass 154]154 DIVERSE FLUID CONTAINING PRESSURE SYSTEMS
 [List of Pre Grant Publications for class 137 subclass 155][List of Patents for class 137 subclass 155]155 Subclass 155 indent level is 1 Gas lift valves for wells
[List of Pre Grant Publications for class 137 subclass 156][List of Patents for class 137 subclass 156]156 Subclass 156 indent level is 1 Gas pressure discharge of liquids feed traps (e.g., to boiler)
[List of Pre Grant Publications for class 137 subclass 170.1][List of Patents for class 137 subclass 170.1]170.1 Subclass 170.1 indent level is 1 Foam control in gas charged liquids
[List of Pre Grant Publications for class 137 subclass 171][List of Patents for class 137 subclass 171]171 Subclass 171 indent level is 1 Fluid separating traps or vents
 [List of Pre Grant Publications for class 137 subclass 205][List of Patents for class 137 subclass 205]205 Subclass 205 indent level is 1 Liquid filling by evacuating container
 [List of Pre Grant Publications for class 137 subclass 205.5][List of Patents for class 137 subclass 205.5]205.5 Subclass 205.5 indent level is 1 Main line flow displaces additive from shunt reservoir
[List of Pre Grant Publications for class 137 subclass 206][List of Patents for class 137 subclass 206]206 Subclass 206 indent level is 1 Gas pressure storage over or displacement of liquid
[List of Pre Grant Publications for class 137 subclass 215][List of Patents for class 137 subclass 215]215 BACK FLOW PREVENTION BY VACUUM BREAKING (E.G., ANTI-SIPHON DEVICES)
[List of Pre Grant Publications for class 137 subclass 219][List of Patents for class 137 subclass 219]219 LARNER-JOHNSON TYPE VALVES; I.E., TELESCOPING INTERNAL VALVE IN EXPANDED FLOW LINE SECTION
[List of Pre Grant Publications for class 137 subclass 223][List of Patents for class 137 subclass 223]223 INFLATABLE ARTICLE (E.G., TIRE FILLING CHUCK AND/OR STEM)
 [List of Pre Grant Publications for class 137 subclass 234.6][List of Patents for class 137 subclass 234.6]234.6 WITH VEHICLE GUIDE OR SUPPORT, E.G., SERVICE STATION
 [List of Pre Grant Publications for class 137 subclass 236.1][List of Patents for class 137 subclass 236.1]236.1 DISTRIBUTION SYSTEMS INVOLVING GEOGRAPHIC FEATURES
[List of Pre Grant Publications for class 137 subclass 237][List of Patents for class 137 subclass 237]237 WITH CLEANER, LUBRICATION ADDED TO FLUID OR LIQUID SEALING AT VALVE INTERFACE
[List of Pre Grant Publications for class 137 subclass 247][List of Patents for class 137 subclass 247]247 WITH LIQUID VALVES OR LIQUID TRAP SEALS
[List of Pre Grant Publications for class 137 subclass 255][List of Patents for class 137 subclass 255]255 PLURAL TANKS OR COMPARTMENTS WITH PARALLEL FLOW
 [List of Pre Grant Publications for class 137 subclass 268][List of Patents for class 137 subclass 268]268 WITH HOLDER FOR SOLID, FLAKY OR PULVERIZED MATERIAL TO BE DISSOLVED OR ENTRAINED
[List of Pre Grant Publications for class 137 subclass 269][List of Patents for class 137 subclass 269]269 CONVERTIBLE
[List of Pre Grant Publications for class 137 subclass 272][List of Patents for class 137 subclass 272]272 HYDRANT TYPE
[List of Pre Grant Publications for class 137 subclass 309][List of Patents for class 137 subclass 309]309 REVERSING VALVES - REGENERATIVE FURNACE TYPE
[List of Pre Grant Publications for class 137 subclass 312][List of Patents for class 137 subclass 312]312 WITH LEAKAGE OR DRIP COLLECTING
[List of Pre Grant Publications for class 137 subclass 315.01][List of Patents for class 137 subclass 315.01]315.01 WITH REPAIR, TAPPING, ASSEMBLY, OR DISASSEMBLY MEANS
 [List of Pre Grant Publications for class 137 subclass 315.02][List of Patents for class 137 subclass 315.02]315.02 Subclass 315.02 indent level is 1 Blow out preventer or choke valve device (e.g., oil well flow controlling device, etc.)
 [List of Pre Grant Publications for class 137 subclass 315.03][List of Patents for class 137 subclass 315.03]315.03 Subclass 315.03 indent level is 1 Solenoid or electromagnetically operated valve
[List of Pre Grant Publications for class 137 subclass 315.04][List of Patents for class 137 subclass 315.04]315.04 Subclass 315.04 indent level is 1 Pressure regulating type valve
 [List of Pre Grant Publications for class 137 subclass 315.06][List of Patents for class 137 subclass 315.06]315.06 Subclass 315.06 indent level is 1 Gas or water meter replacing
 [List of Pre Grant Publications for class 137 subclass 315.07][List of Patents for class 137 subclass 315.07]315.07 Subclass 315.07 indent level is 1 Assembling or disassembling flexible tube or sleeve type valve
 [List of Pre Grant Publications for class 137 subclass 315.08][List of Patents for class 137 subclass 315.08]315.08 Subclass 315.08 indent level is 1 Assembling or disassembling float or float valve
 [List of Pre Grant Publications for class 137 subclass 315.09][List of Patents for class 137 subclass 315.09]315.09 Subclass 315.09 indent level is 1 Assembling or disassembling multi way valve
[List of Pre Grant Publications for class 137 subclass 315.11][List of Patents for class 137 subclass 315.11]315.11 Subclass 315.11 indent level is 1 Assembling, disassembling, or removing cartridge type valve (e.g., insertable and removable as a unit, etc.)
 [List of Pre Grant Publications for class 137 subclass 315.16][List of Patents for class 137 subclass 315.16]315.16 Subclass 315.16 indent level is 1 Assembling or disassembling pivoted valve
[List of Pre Grant Publications for class 137 subclass 315.17][List of Patents for class 137 subclass 315.17]315.17 Subclass 315.17 indent level is 1 Assembling or disassembling rotary valve
[List of Pre Grant Publications for class 137 subclass 315.27][List of Patents for class 137 subclass 315.27]315.27 Subclass 315.27 indent level is 1 Assembling or disassembling reciprocating valve
 [List of Pre Grant Publications for class 137 subclass 315.33][List of Patents for class 137 subclass 315.33]315.33 Subclass 315.33 indent level is 1 Assembling or disassembling check valve
[List of Pre Grant Publications for class 137 subclass 315.35][List of Patents for class 137 subclass 315.35]315.35 Subclass 315.35 indent level is 1 With mechanical movement between actuator and valve
[List of Pre Grant Publications for class 137 subclass 315.41][List of Patents for class 137 subclass 315.41]315.41 Subclass 315.41 indent level is 1 Tool for applying or removing valve or valve member
 [List of Pre Grant Publications for class 137 subclass 316][List of Patents for class 137 subclass 316]316 Subclass 316 indent level is 1 With holding means functioning only during transportation assembly or disassembly
[List of Pre Grant Publications for class 137 subclass 317][List of Patents for class 137 subclass 317]317 Subclass 317 indent level is 1 Tapping a pipe, keg, or apertured tank under pressure
 [List of Pre Grant Publications for class 137 subclass 326][List of Patents for class 137 subclass 326]326 Subclass 326 indent level is 1 Foot valve extraction from top of enclosure
[List of Pre Grant Publications for class 137 subclass 327][List of Patents for class 137 subclass 327]327 Subclass 327 indent level is 1 With disassembly tool engaging feature
[List of Pre Grant Publications for class 137 subclass 329][List of Patents for class 137 subclass 329]329 Subclass 329 indent level is 1 With provision of alternate wear parts
[List of Pre Grant Publications for class 137 subclass 329.1][List of Patents for class 137 subclass 329.1]329.1 Subclass 329.1 indent level is 1 Removable valve with normally disabled supplemental check valve
[List of Pre Grant Publications for class 137 subclass 330][List of Patents for class 137 subclass 330]330 NON-VALVING MOTION OF THE VALVE OR VALVE SEAT
[List of Pre Grant Publications for class 137 subclass 334][List of Patents for class 137 subclass 334]334 WITH HEATING OR COOLING OF THE SYSTEM
 [List of Pre Grant Publications for class 137 subclass 342][List of Patents for class 137 subclass 342]342 WITH FLUID SYSTEM SUPPORT FOR WORKMAN OR NON-SYSTEM MATERIAL
[List of Pre Grant Publications for class 137 subclass 343][List of Patents for class 137 subclass 343]343 WITH CASING, SUPPORT, PROTECTOR OR STATIC CONSTRUCTIONAL INSTALLATIONS
[List of Pre Grant Publications for class 137 subclass 899][List of Patents for class 137 subclass 899]899 Subclass 899 indent level is 1 Vehicle
[List of Pre Grant Publications for class 137 subclass 355.16][List of Patents for class 137 subclass 355.16]355.16 Subclass 355.16 indent level is 1 With hose storage or retrieval means
[List of Pre Grant Publications for class 137 subclass 356][List of Patents for class 137 subclass 356]356 Subclass 356 indent level is 1 Static constructional installations
 [List of Pre Grant Publications for class 137 subclass 374][List of Patents for class 137 subclass 374]374 Subclass 374 indent level is 1 Furniture and housing furnishings
 [List of Pre Grant Publications for class 137 subclass 375][List of Patents for class 137 subclass 375]375 Subclass 375 indent level is 1 Jacketed
 [List of Pre Grant Publications for class 137 subclass 376][List of Patents for class 137 subclass 376]376 Subclass 376 indent level is 1 Tank supports
[List of Pre Grant Publications for class 137 subclass 377][List of Patents for class 137 subclass 377]377 Subclass 377 indent level is 1 Guards and shields
[List of Pre Grant Publications for class 137 subclass 383][List of Patents for class 137 subclass 383]383 WITH LOCK OR SEAL
[List of Pre Grant Publications for class 137 subclass 386][List of Patents for class 137 subclass 386]386 LIQUID LEVEL RESPONSIVE OR MAINTAINING SYSTEMS
 [List of Pre Grant Publications for class 137 subclass 387][List of Patents for class 137 subclass 387]387 Subclass 387 indent level is 1 Washing machine cycle control
 [List of Pre Grant Publications for class 137 subclass 388][List of Patents for class 137 subclass 388]388 Subclass 388 indent level is 1 Liquid excluding devices for gas inlet or outlets
[List of Pre Grant Publications for class 137 subclass 389][List of Patents for class 137 subclass 389]389 Subclass 389 indent level is 1 With second diverse control
 [List of Pre Grant Publications for class 137 subclass 391][List of Patents for class 137 subclass 391]391 Subclass 391 indent level is 1 Control of both inflow and outflow of tank
 [List of Pre Grant Publications for class 137 subclass 392][List of Patents for class 137 subclass 392]392 Subclass 392 indent level is 1 Electrical characteristic sensing
 [List of Pre Grant Publications for class 137 subclass 393][List of Patents for class 137 subclass 393]393 Subclass 393 indent level is 1 With control fluid connection at desired liquid level
[List of Pre Grant Publications for class 137 subclass 395][List of Patents for class 137 subclass 395]395 Subclass 395 indent level is 1 Control of outflow from tank
[List of Pre Grant Publications for class 137 subclass 400][List of Patents for class 137 subclass 400]400 Subclass 400 indent level is 1 With supplemental or safety closing means or bias
[List of Pre Grant Publications for class 137 subclass 403][List of Patents for class 137 subclass 403]403 Subclass 403 indent level is 1 By weight of accumulated fluid
[List of Pre Grant Publications for class 137 subclass 409][List of Patents for class 137 subclass 409]409 Subclass 409 indent level is 1 By float controlled valve
[List of Pre Grant Publications for class 137 subclass 453][List of Patents for class 137 subclass 453]453 Subclass 453 indent level is 1 Barometric
[List of Pre Grant Publications for class 137 subclass 454.2][List of Patents for class 137 subclass 454.2]454.2 REMOVABLE VALVE HEAD AND SEAT UNIT
[List of Pre Grant Publications for class 137 subclass 455][List of Patents for class 137 subclass 455]455 LINE CONDITION CHANGE RESPONSIVE VALVES
[List of Pre Grant Publications for class 137 subclass 456][List of Patents for class 137 subclass 456]456 Subclass 456 indent level is 1 Safety cut-off requiring reset
 [List of Pre Grant Publications for class 137 subclass 467][List of Patents for class 137 subclass 467]467 Subclass 467 indent level is 1 Fluid opened valve requiring reset
 [List of Pre Grant Publications for class 137 subclass 467.5][List of Patents for class 137 subclass 467.5]467.5 Subclass 467.5 indent level is 1 Consistency responsive
 [List of Pre Grant Publications for class 137 subclass 468][List of Patents for class 137 subclass 468]468 Subclass 468 indent level is 1 Thermal responsive
[List of Pre Grant Publications for class 137 subclass 469][List of Patents for class 137 subclass 469]469 Subclass 469 indent level is 1 Pop valves
[List of Pre Grant Publications for class 137 subclass 479][List of Patents for class 137 subclass 479]479 Subclass 479 indent level is 1 Combustion engine induction type
[List of Pre Grant Publications for class 137 subclass 484.2][List of Patents for class 137 subclass 484.2]484.2 Subclass 484.2 indent level is 1 Line flow effect assisted
[List of Pre Grant Publications for class 137 subclass 485][List of Patents for class 137 subclass 485]485 Subclass 485 indent level is 1 Pilot or servo controlled
[List of Pre Grant Publications for class 137 subclass 493][List of Patents for class 137 subclass 493]493 Subclass 493 indent level is 1 Bi-directional flow valves
[List of Pre Grant Publications for class 137 subclass 494][List of Patents for class 137 subclass 494]494 Subclass 494 indent level is 1 With separate connected fluid reactor surface
 [List of Pre Grant Publications for class 137 subclass 495][List of Patents for class 137 subclass 495]495 Subclass 495 indent level is 2 With manual or external control for line valve
 [List of Pre Grant Publications for class 137 subclass 496][List of Patents for class 137 subclass 496]496 Subclass 496 indent level is 2 Valve closes in responses to reverse flow
[List of Pre Grant Publications for class 137 subclass 497][List of Patents for class 137 subclass 497]497 Subclass 497 indent level is 2 Responsive to change in rate of fluid flow
[List of Pre Grant Publications for class 137 subclass 505][List of Patents for class 137 subclass 505]505 Subclass 505 indent level is 2 With opening bias (e.g., pressure regulator)
 [List of Pre Grant Publications for class 137 subclass 506][List of Patents for class 137 subclass 506]506 Subclass 506 indent level is 2 Plural valves biased closed
 [List of Pre Grant Publications for class 137 subclass 507][List of Patents for class 137 subclass 507]507 Subclass 507 indent level is 2 With means for mounting or connecting to system
 [List of Pre Grant Publications for class 137 subclass 508][List of Patents for class 137 subclass 508]508 Subclass 508 indent level is 2 Valve seat or external sleeve moves to open valve
[List of Pre Grant Publications for class 137 subclass 509][List of Patents for class 137 subclass 509]509 Subclass 509 indent level is 2 Valve seating in direction of flow
[List of Pre Grant Publications for class 137 subclass 511][List of Patents for class 137 subclass 511]511 Subclass 511 indent level is 1 Direct response valves (i.e., check valve type)
[List of Pre Grant Publications for class 137 subclass 512][List of Patents for class 137 subclass 512]512 Subclass 512 indent level is 2 Plural
[List of Pre Grant Publications for class 137 subclass 513.3][List of Patents for class 137 subclass 513.3]513.3 Subclass 513.3 indent level is 2 With leak passage
[List of Pre Grant Publications for class 137 subclass 514][List of Patents for class 137 subclass 514]514 Subclass 514 indent level is 2 With retarder or dashpot
[List of Pre Grant Publications for class 137 subclass 515][List of Patents for class 137 subclass 515]515 Subclass 515 indent level is 2 In couplings for coaxial conduits, e.g., drill pipe check valves
 [List of Pre Grant Publications for class 137 subclass 516][List of Patents for class 137 subclass 516]516 Subclass 516 indent level is 2 With means for selecting area of valve or seat
[List of Pre Grant Publications for class 137 subclass 516.11][List of Patents for class 137 subclass 516.11]516.11 Subclass 516.11 indent level is 2 Single head, plural ports in parallel
[List of Pre Grant Publications for class 137 subclass 516.25][List of Patents for class 137 subclass 516.25]516.25 Subclass 516.25 indent level is 2 Plural seating
[List of Pre Grant Publications for class 137 subclass 517][List of Patents for class 137 subclass 517]517 Subclass 517 indent level is 2 Biased open
[List of Pre Grant Publications for class 137 subclass 522][List of Patents for class 137 subclass 522]522 Subclass 522 indent level is 2 With external means for opposing bias
 [List of Pre Grant Publications for class 137 subclass 524][List of Patents for class 137 subclass 524]524 Subclass 524 indent level is 2 With bias adjustment indicator
[List of Pre Grant Publications for class 137 subclass 843][List of Patents for class 137 subclass 843]843 Subclass 843 indent level is 2 Resilient material valve
 [List of Pre Grant Publications for class 137 subclass 526][List of Patents for class 137 subclass 526]526 Subclass 526 indent level is 2 Vacuum relief type
[List of Pre Grant Publications for class 137 subclass 527][List of Patents for class 137 subclass 527]527 Subclass 527 indent level is 2 Pivoted valves
[List of Pre Grant Publications for class 137 subclass 528][List of Patents for class 137 subclass 528]528 Subclass 528 indent level is 2 Reciprocating valves
[List of Pre Grant Publications for class 137 subclass 544][List of Patents for class 137 subclass 544]544 WITH MEANS FOR SEPARATING SOLID MATERIAL FROM THE FLUID
[List of Pre Grant Publications for class 137 subclass 551][List of Patents for class 137 subclass 551]551 WITH INDICATOR, REGISTER, RECORDER, ALARM OR INSPECTION MEANS
 [List of Pre Grant Publications for class 137 subclass 560][List of Patents for class 137 subclass 560]560 COMBINED
[List of Pre Grant Publications for class 137 subclass 561R][List of Patents for class 137 subclass 561R]  561R SYSTEMS
 [List of Pre Grant Publications for class 137 subclass 561A][List of Patents for class 137 subclass 561A]561A Subclass 561A indent level is 1 Non-valved flow dividers
 [List of Pre Grant Publications for class 137 subclass 562][List of Patents for class 137 subclass 562]562 Subclass 562 indent level is 1 Faucet connected, sink drained
[List of Pre Grant Publications for class 137 subclass 563][List of Patents for class 137 subclass 563]563 Subclass 563 indent level is 1 Closed circulating system
 [List of Pre Grant Publications for class 137 subclass 564.5][List of Patents for class 137 subclass 564.5]564.5 Subclass 564.5 indent level is 1 Main line as motive fluid for follower-type feeder
[List of Pre Grant Publications for class 137 subclass 565.01][List of Patents for class 137 subclass 565.01]565.01 Subclass 565.01 indent level is 1 With pump
[List of Pre Grant Publications for class 137 subclass 571][List of Patents for class 137 subclass 571]571 Subclass 571 indent level is 1 Plural tanks or compartments connected for serial flow
[List of Pre Grant Publications for class 137 subclass 577][List of Patents for class 137 subclass 577]577 Subclass 577 indent level is 1 Tank with movable or adjustable outlet or overflow pipe
 [List of Pre Grant Publications for class 137 subclass 580][List of Patents for class 137 subclass 580]580 Subclass 580 indent level is 1 With running joint between movable parts of system
 [List of Pre Grant Publications for class 137 subclass 581][List of Patents for class 137 subclass 581]581 Subclass 581 indent level is 1 Movable tank
 [List of Pre Grant Publications for class 137 subclass 582][List of Patents for class 137 subclass 582]582 Subclass 582 indent level is 1 With antisplash means not in flow passage
[List of Pre Grant Publications for class 137 subclass 583][List of Patents for class 137 subclass 583]583 Subclass 583 indent level is 1 System with plural openings, one a gas vent or access opening
[List of Pre Grant Publications for class 137 subclass 590][List of Patents for class 137 subclass 590]590 Subclass 590 indent level is 1 Tank with internally extending flow guide, pipe or conduit
 [List of Pre Grant Publications for class 137 subclass 593][List of Patents for class 137 subclass 593]593 Subclass 593 indent level is 1 Head-establishing standpipe or expansion chamber (e.g., surge tanks)
[List of Pre Grant Publications for class 137 subclass 624.11][List of Patents for class 137 subclass 624.11]624.11 Subclass 624.11 indent level is 1 Programmer or timer
 [List of Pre Grant Publications for class 137 subclass 624.27][List of Patents for class 137 subclass 624.27]624.27 Subclass 624.27 indent level is 1 Line condition change responsive release of valve
[List of Pre Grant Publications for class 137 subclass 625][List of Patents for class 137 subclass 625]625 Subclass 625 indent level is 1 Multi-way valve unit
 [List of Pre Grant Publications for class 137 subclass 625.11][List of Patents for class 137 subclass 625.11]625.11 Subclass 625.11 indent level is 2 Sequential distributor or collector type
[List of Pre Grant Publications for class 137 subclass 625.12][List of Patents for class 137 subclass 625.12]625.12 Subclass 625.12 indent level is 2 Sequentially progressive opening or closing of plural ports
 [List of Pre Grant Publications for class 137 subclass 625.17][List of Patents for class 137 subclass 625.17]625.17 Subclass 625.17 indent level is 2 Selective reciprocation or rotation
[List of Pre Grant Publications for class 137 subclass 625.18][List of Patents for class 137 subclass 625.18]625.18 Subclass 625.18 indent level is 2 Plural noncommunicating flow paths
[List of Pre Grant Publications for class 137 subclass 625.2][List of Patents for class 137 subclass 625.2]625.2 Subclass 625.2 indent level is 2 Supply and exhaust
[List of Pre Grant Publications for class 137 subclass 625.28][List of Patents for class 137 subclass 625.28]625.28 Subclass 625.28 indent level is 2 Dividing into parallel flow paths with recombining
[List of Pre Grant Publications for class 137 subclass 625.4][List of Patents for class 137 subclass 625.4]625.4 Subclass 625.4 indent level is 2 Multiple inlet with single outlet
 [List of Pre Grant Publications for class 137 subclass 625.42][List of Patents for class 137 subclass 625.42]625.42 Subclass 625.42 indent level is 2 Selective opening of plural ports
 [List of Pre Grant Publications for class 137 subclass 625.43][List of Patents for class 137 subclass 625.43]625.43 Subclass 625.43 indent level is 2 Four port reversing valves
[List of Pre Grant Publications for class 137 subclass 625.44][List of Patents for class 137 subclass 625.44]625.44 Subclass 625.44 indent level is 2 Pivoted valve unit
[List of Pre Grant Publications for class 137 subclass 625.46][List of Patents for class 137 subclass 625.46]625.46 Subclass 625.46 indent level is 2 Rotary valve unit
[List of Pre Grant Publications for class 137 subclass 625.48][List of Patents for class 137 subclass 625.48]625.48 Subclass 625.48 indent level is 2 Reciprocating valve unit
 [List of Pre Grant Publications for class 137 subclass 626][List of Patents for class 137 subclass 626]626 Subclass 626 indent level is 1 Plural petcocks
 [List of Pre Grant Publications for class 137 subclass 627][List of Patents for class 137 subclass 627]627 Subclass 627 indent level is 1 Sequential distributor or collector type
 [List of Pre Grant Publications for class 137 subclass 627.5][List of Patents for class 137 subclass 627.5]627.5 Subclass 627.5 indent level is 1 Sequentially closing and opening alternately seating flow controllers
[List of Pre Grant Publications for class 137 subclass 628][List of Patents for class 137 subclass 628]628 Subclass 628 indent level is 1 Sequentially progressive opening or closing of plural valves