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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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Class 137 | FLUID HANDLING |
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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 |
15.01 | Cleaning, repairing, or assembling |
15.02 | Repairing or assembling hydrant (e.g., fireplug, etc.) |
15.03 | Gas or water meter repairing or assembling |
15.04 | Fluid cleaning or flushing |
15.07 | Mechanical cleaning (e.g., pig, etc.) |
15.08 | Repairing, securing, replacing, or servicing pipe joint, valve, or tank |
15.09 | Including joint or coupling |
15.11 | Detecting or repairing leak |
15.12 | Tapping pipe, keg, or tank |
15.16 | With content loading or unloading (e.g., dispensing, discharge assistant, etc.) |
15.17 | Specific valve or valve element mounting or repairing |
15.18 | Valve or valve element assembling, disassembling, or replacing |
15.1 | HIGHSPEED FLUID INTAKE MEANS (E.G., JET ENGINE INTAKE) |
38 | CONTROL BY CHANGE OF POSITION OR INERTIA OF SYSTEM |
39 | With second control |
40 | Position relative body of water (e.g., marine governors) |
43 | Vent opening or closing on tipping container |
44 | By shifting of liquid level |
45 | By pendulum or swinging member |
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 |
53 | Centrifugal mass type (exclusive of liquid) |
59 | FREEZE CONDITION RESPONSIVE SAFETY SYSTEMS |
65 | COMBUSTION FAILURE RESPONSIVE FUEL SAFETY CUT-OFF FOR BURNERS |
67 | DESTRUCTIBLE OR DEFORMABLE ELEMENT CONTROLLED |
68.11 | Destructible element |
68.12 | Combined destructible and fusible element |
68.13 | Explosive actuation |
68.14 | Separable valve coupling or conduit |
68.16 | Tensile or sheer pin or bolt |
68.18 | With alarm or indicator |
68.19 | Rupture disc |
68.21 | Means for holding entire disc after rupture |
68.22 | Disc burst after destruction of additional element |
68.23 | Direct pressure causes disc to burst |
68.27 | Specific weakening point |
68.28 | Integral disc assembly |
68.29 | Knife or cutter causes disc to break |
69 | With counterbalancing element |
70 | Frangible element returns pressure responsive valve |
71 | Having pressure responsive valve |
72 | Heat destructible or fusible |
78.1 | AMBIENT CONDITION CHANGE RESPONSIVE |
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 |
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) |
814 | System comprising plural fluidic devices or stages |
822 | Plural power inputs to single device |
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) |
829 | By movable element |
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 |
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 |
87.01 | 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 |
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 |
101.31 | With measuring type discharge assistant |
102 | Supply and exhaust type |
103 | Vacuum or suction pulsator type (e.g., milking machine) |
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 |
115.01 | Bypass or relief controlled by main line fluid condition |
115.02 | Liquid level responsive |
115.03 | Flow rate responsive |
115.04 | Including controlling main line flow |
115.06 | Bypass or relief valve biased open |
115.07 | Pilot valve operated |
115.08 | Carried choke |
115.09 | Choke |
115.11 | Venturi |
115.12 | Flapper |
115.13 | Pressure responsive |
116.3 | With pressure reducing inlet valve |
115.14 | Common sensor for both bypass or relief valve and other branch valve |
115.16 | Bypass or relief valve biased open |
115.18 | Bypass or relief valve responsive to pressure downstream of outlet valve |
115.21 | Plural sensors for single bypass or relief valve |
115.23 | Pilot valve operated |
115.24 | Mechanical movement between sensor and valve |
115.25 | Electrical control |
115.26 | Sensor rigid with valve |
118.01 | Plural outflows |
118.02 | Single actuator operates plural outlets simultaneously |
118.03 | Biased open isolation valve |
118.04 | Flow rate responsive |
118.06 | Pressure responsive |
119.01 | Alternately or successively substituted outflow |
87.02 | Liquid level responsive |
87.03 | Flow rate responsive |
87.05 | Plural sensors |
123 | SIPHONS |
124 | Plural |
125 | Tank truck mounted |
126 | Sequentially discharging in parallel |
128 | Main siphon with auxiliary starting, stopping or resetting siphon |
130 | With discharge-controlling receiver |
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 |
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 |
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 |
159 | Gas pressure controlled by amount of liquid in trap |
169 | Gas pressure controlled by manual or cyclic means |
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 |
171 | Fluid separating traps or vents |
172 | Liquids separated from liquid |
173 | Plural discriminating outlets for diverse fluids |
177 | Discriminating outlet for liquid |
178 | With alternately operated inlet and outlet valves |
179 | With non-discriminating gas vent or liquid discharge |
182 | With auxiliary inlet or by-pass valve |
183 | With fluid responsive valve |
197 | Discriminating outlet for gas |
203 | With liquid emptying means |
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 |
211.5 | 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 |
215 | BACK FLOW PREVENTION BY VACUUM BREAKING (E.G., ANTI-SIPHON DEVICES) |
219 | LARNER-JOHNSON TYPE VALVES; I.E., TELESCOPING INTERNAL VALVE IN EXPANDED FLOW LINE SECTION |
223 | INFLATABLE ARTICLE (E.G., TIRE FILLING CHUCK AND/OR STEM) |
224 | With pressure-responsive pressure-control means |
227 | With gauge or indicator |
230 | Stem attached relief valve |
231 | With coupling means |
232 | With cap |
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 |
246 | Liquid supplied at valve interface |
247 | WITH LIQUID VALVES OR LIQUID TRAP SEALS |
247.11 | Liquid seal in liquid flow line; flow liquid forms seal |
247.13 | Valves |
247.25 | Seal replenishers |
247.27 | Plural inlet |
247.29 | Divided and recombined passages |
247.31 | Tangential inlet flow |
247.33 | Downward partition encircles projecting outlet |
247.35 | Submerged inlet pipe end |
247.41 | U-seals |
248 | Seal for relatively movable valving parts |
251.1 | Liquid valves |
255 | PLURAL TANKS OR COMPARTMENTS WITH PARALLEL FLOW |
256 | Sequentially filled and emptied (e.g., holding type) |
259 | With housings, supports or stacking arrangements |
260 | Battery or electrolytic cell replenishment |
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 |
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 |
271 | Units interchangeable between alternate locations |
272 | HYDRANT TYPE |
273 | Water crane type |
280 | Plural riser |
281 | Expansible chamber operated by valve actuator for draining riser |
282 | With pump or ejector |
283 | Removable valve and valve seat |
285 | Removable valve with supplemental check valve |
286 | Movable riser actuated valve |
289 | Balanced valve |
290 | Valve actuator extends laterally from bottom of riser |
291 | Valve actuator outside riser |
294 | With casing |
298 | With actuator lubricating means |
299 | With valve at outlet |
300 | With supplemental valve |
301 | Protection against freezing |
309 | REVERSING VALVES - REGENERATIVE FURNACE TYPE |
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 |
315.01 | WITH REPAIR, TAPPING, ASSEMBLY, OR DISASSEMBLY MEANS |
315.02 | Blow out preventer or choke valve device (e.g., oil well flow controlling device, etc.) |
315.03 | Solenoid or electromagnetically operated valve |
315.04 | Pressure regulating type valve |
315.06 | Gas or water meter replacing |
315.07 | Assembling or disassembling flexible tube or sleeve type valve |
315.08 | Assembling or disassembling float or float valve |
315.09 | Assembling or disassembling multi way valve |
315.11 | Assembling, disassembling, or removing cartridge type valve (e.g., insertable and removable as a unit, etc.) |
315.16 | Assembling or disassembling pivoted valve |
315.17 | Assembling or disassembling rotary valve |
315.27 | Assembling or disassembling reciprocating valve |
315.33 | Assembling or disassembling check valve |
315.35 | With mechanical movement between actuator and valve |
315.41 | Tool for applying or removing valve or valve member |
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 |
326 | Foot valve extraction from top of enclosure |
327 | With disassembly tool engaging feature |
329 | With provision of alternate wear parts |
329.1 | Removable valve with normally disabled supplemental check valve |
330 | NON-VALVING MOTION OF THE VALVE OR VALVE SEAT |
334 | WITH HEATING OR COOLING OF THE SYSTEM |
335 | With burner |
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 |
347 | Railway car |
351 | Automotive |
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 |
355.2 | With retrieval means |
355.26 | Reel with support therefor |
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 |
362 | Floor installation |
363 | Ground supporting enclosure |
364 | Valve and meter wells |
365 | With means to center well on valve |
368 | Combined with actuator |
370 | Telescopic well casing |
371 | Covers |
372 | Pipe line transport |
373 | Tapering or tower type |
374 | Furniture and housing furnishings |
375 | Jacketed |
376 | Tank supports |
377 | Guards and shields |
383 | WITH LOCK OR SEAL |
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 |
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 |
400 | With supplemental or safety closing means or bias |
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 |
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 |
416 | Quick acting |
423 | Plural floats |
424 | With counter-balance |
426 | Level adjustment or selection means |
427 | With float leakage disposal |
428 | In separate communicating float chamber |
429 | Rectilinearly traveling float |
434 | Float arm operated valve |
435 | With valve retarder or cushion means |
436 | With flow guide or restrictor |
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 coaxial with inlet pipe |
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 |
454.2 | REMOVABLE VALVE HEAD AND SEAT UNIT |
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 |
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 |
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 |
474 | Lost motion between pop pressure reactor and valve |
475 | Adjustable choke |
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 |
485 | Pilot or servo controlled |
486 | Responsive to change in rate of fluid flow |
487.5 | Electrically actuated valve |
488 | Fluid pressure type |
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 |
493.6 | 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 |
505.18 | Balanced valve |
505.19 | Liquid level responsive gas flow control |
505.2 | With protective separator |
505.21 | Main flow through isolated reactor chamber |
505.22 | Through external pipe |
505.25 | Apertured reactor surface surrounds flow line |
505.26 | Reactor surface separated by apertured partition |
505.27 | In valve stem |
505.29 | Valve stem passes through the aperture |
505.3 | Plural reactor surfaces |
505.31 | Reactor is an inverted cup having liquid seal |
505.34 | Valve head in inlet chamber |
505.36 | Reactor surface is diaphragm |
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 |
505.44 | Valve head on yoke |
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 |
511 | Direct response valves (i.e., check valve type) |
512 | Plural |
512.1 | Dividing and recombining in a single flow path |
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 |
514 | With retarder or dashpot |
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 |
516.25 | Plural seating |
517 | Biased open |
522 | With external means for opposing bias |
524 | With bias adjustment indicator |
843 | Resilient material valve |
844 | Having expansible port |
851 | Center flexing strip |
852 | With valve member flexing about securement |
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 |
535 | Spring biased |
536 | With means to protect spring from fluid |
537 | Spring under tension |
538 | Piston-type valves |
539 | Ball valves |
540 | Spring coaxial with valve |
540.11 | Broken valve parts retainer |
541 | Spring in inlet |
542 | Valve stem extends through fixed spring abutment |
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 |
552.7 | 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 |
557 | Fluid pressure responsive indicator, recorder or alarm |
558 | Liquid level responsive indicator, recorder or alarm |
559 | Inspection means |
560 | COMBINED |
561R | SYSTEMS |
561A | Non-valved flow dividers |
562 | Faucet connected, sink drained |
563 | Closed circulating system |
564.5 | Main line as motive fluid for follower-type feeder |
565.01 | With pump |
565.11 | Pumped fluid control |
565.17 | Combined with fluid receiver |
565.34 | Reserve or surge receiver |
565.18 | Compressed air supply unit |
565.19 | Hydraulic power unit |
565.37 | Fluid sump |
565.22 | And jet-aspiration type pump |
565.23 | Vacuum pump |
565.24 | Resiliently mounted pump |
565.25 | Hand pump |
565.26 | Multiple inlet with multiple outlet |
565.27 | Downstream cyclic distributor |
565.29 | Plural |
565.35 | With pump bypass |
565.36 | 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 or compartments |
577 | Tank with movable or adjustable outlet or overflow pipe |
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 |
587 | Tank with gas vent and inlet or outlet |
589 | With vented outlet |
590 | Tank with internally extending flow guide, pipe or conduit |
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 |
624.18 | Plural, sequential, valve actuations |
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 |
625.17 | Selective reciprocation or rotation |
625.18 | Plural noncommunicating flow paths |
625.2 | Supply and exhaust |
625.6 | Pilot-actuated |
625.65 | Motor-operated |
625.21 | Rotary valve |
625.25 | Reciprocating valve |
625.28 | Dividing into parallel flow paths with recombining |
625.4 | Multiple inlet with single outlet |
625.42 | Selective opening of plural ports |
625.43 | Four port reversing valves |
625.44 | Pivoted valve unit |
625.46 | Rotary valve unit |
625.48 | Reciprocating valve unit |
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 |
630.16 | With subsequent closing of first opened port |
630.18 | Screw-actuated differential valves |
630.19 | Lost motion |
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 |
594 | Plural noncommunicating flow paths |
596 | Supply and exhaust |
597 | Multiple inlet with multiple outlet |
598 | Hydraulic brake line (e.g., hill holders) |
599.01 | Dividing into parallel flow paths with recombining |
599.02 | With fluid coupling (e.g., railway car hose coupling, truck-trailer oil system coupling, etc.) |
599.03 | System having plural inlets |
599.05 | Having digital flow controller |
599.08 | With multi way valve having serial valve in at least one branch |
599.09 | Fluid pressure regulator in at least one branch |
599.11 | Flow passage with bypass |
599.12 | Including mixing feature |
599.13 | Including flowmeter |
599.14 | Including cleaning, treating, or heat transfer feature |
599.16 | Second valve assembly carried by first valve head |
599.17 | With rotary plug having variable restrictor |
599.18 | Carried valve is direct response valve (e.g., check valve, etc.) |
600 | With foam controlling means (e.g., beer, soda faucets) |
601.01 | With common operator |
601.02 | Balanced valve |
601.03 | Single resilient member actuates or forms plural passages |
601.04 | Valves deform to close passage |
601.05 | Rotary valve |
601.06 | Including rigid plate with flexible or resilient seal |
601.07 | Axes of rotation of valves intersect at point |
601.08 | Axes of rotation parallel |
601.12 | Mechanical movement between actuator and non-rotary valve |
601.13 | Fluid actuated or retarded |
601.14 | Electrical actuator |
601.15 | Mechanical movement between actuator and valve |
601.16 | Rotary valve |
601.18 | Having guide or restrictor |
601.2 | Having direct response valve (e.g., check valve, etc.) |
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 |
895 | With condition responsive valve |
896 | With means to promote mixing or combining of plural fluids |
605 | With flow control |
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 |
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 deflector |
876 | Rotary valve or deflector |
877 | Biased valve |
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 |
614.05 | Valve- or closure-operated by coupling motion |
614.06 | Coupling interlocked with valve, or closure or actuator |
614.11 | Common actuator |
614.16 | One valve head provides seat for other head |
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 |
797 | FRANGIBLE |
798 | WITH COUPLING |
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 VALVE |
910 | DESTRUCTIBLE OR DEFORMABLE ELEMENT CONSTRUCTED OF SPECIFIC MATERIAL |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
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