Class 417: PUMPS ( Manual of U.S. Patent Classification )

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Manual of U.S. Patent Classification
as of June 30, 2000


Class
417
PUMPS


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Subclass Title
ClassTitle ===> PUMPS
1[Patents]CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR
2[Patents] . Plural pumps having separate drive motors, supply sources, or delivery destinations
3[Patents] . . Pumps in parallel flow paths with common inflow or outflow
4[Patents] . . . Having means sensing condition in common inflow or outflow line
5[Patents] . . . . With control of plural pump drive motors
6[Patents] . . . . . With additional means sensing condition of one pump or path
7[Patents] . . . . . Sequential starting or stopping of pumps
8[Patents] . . . . . . Alternating sequences
9[Patents] . By stopping pump in response to leakage into or from system
10[Patents] . By controlling starter motor for internal combustion engine
11[Patents] . By controlling free piston internal combustion engine
12[Patents] . Having timer or delay means
13[Patents] . Responsive to pump lubricant, sealant, or coolant condition
14[Patents] . Having ambient condition responsive means
15[Patents] . With control of pump drive transmission
16[Patents] . With plural separate drive motors for single pump unit
17[Patents] . With plural separate drive motor controlling elements
18[Patents] . Single motor control element responsive to means sensing diverse conditions
19[Patents] . . Sensing both inlet and outlet conditions
20[Patents] . . One condition is rate of flow to or from pump
21[Patents] . . One is motive fluid condition of fluid drive motor
22[Patents] . . One condition is speed of pump
23[Patents] . . . With common element sensing diverse condition to control motor and pump fluid valve
24[Patents] . . . Speed sensor comprises auxiliary pump or electric generator
25[Patents] . Relatively movable elements sensing same system pressure for single control element
26[Patents] . With condition responsive control of pump fluid valve
27[Patents] . . Having independent means for delaying valve actuation
28[Patents] . . Fluid and motor controls have common sensing element
29[Patents] . . Fluid and motor controls separately responsive to diverse conditions
30[Patents] . . . Liquid accumulation controlled discharge valve downstream of motor controller sensing means
31[Patents] . . . . Motor controller responsive to liquid pressure
32[Patents] . Responsive to pump or pump fluid temperature
33[Patents] . Pump stop control means requiring manual reset
34[Patents] . By controlling internal combustion drive engine
35[Patents] . By controlling wind motor in response to liquid accumulation
36[Patents] . Responsive to accumulation of pumped liquid in receiver
37[Patents] . . By movable liquid receptacle
38[Patents] . . By liquid pressure sensor
39[Patents] . . With motive fluid supply communicating with liquid receiver
40[Patents] . . By float
41[Patents] . . . Controlling motive fluid or drive motor
42[Patents] . In response to pump speed
43[Patents] . Responsive to change in rate of pump fluid flow
44.1[Patents] . By control of electric or magnetic drive motor
45[Patents] . . By changing electrical characteristic of motor or motor circuit
44.2[Patents] . . Responsive to pump fluid pressure
44.4[Patents] . . . Low pressure stops motor from turning on pump
44.5[Patents] . . . Mercury switch
44.6[Patents] . . . Dial-type sensor
44.7[Patents] . . . Bellow-type sensor
44.8[Patents] . . . Piston-type sensor
44.9[Patents] . . . Diaphragm
44.3[Patents] . . . Inlet pressure
44.11[Patents] . . Responsive to change in electrical operating characteristic
46[Patents] . By controlling drive motor motive fluid
47[Patents] . . Rotary nonexpansible chamber-type motor
48[Patents]ELECTRICAL OR GETTER TYPE
49[Patents] . Ionic with gettering
50[Patents] . Electromagnetic
51[Patents] . Getter heating, vaporizing, or regeneration
52[Patents]EXPANSION AND CONTRACTION OF PUMP FLUID
53[Patents]PROCESSES
54[Patents] . Of pumping one fluid by contact or entrainment with another
55[Patents] . . Specific motive fluid
56[Patents]DRILLED WELL FREE PISTON-TYPE PUMP
57[Patents] . Having condition or position responsive control of pump discharge flow path
58[Patents] . Having condition or position responsive control of motive fluid supply
59[Patents] . Radially expansible piston portion controls pump and motor chamber intercommunication
60[Patents] . Mechanically actuated valve carried by piston
61[Patents]BUOYANTLY SUPPORTED
62[Patents]ALTERNATE SERIES OR PARALLEL OPERATION OF PLURAL PUMPS
63[Patents]WITH SIGNAL, INDICATOR, OR INSPECTION MEANS
64[Patents]GAS PRESSURE EXCHANGE USING ROTARY CELLULAR CONVEYOR
65[Patents]ONE FLUID PUMPED BY CONTACT OR ENTRAINMENT WITH ANOTHER
66[Patents] . Contact or entrainment within rotary impeller
67[Patents] . . Passage in impeller shaft for pumped or motive fluid
68[Patents] . . Liquid ring
69[Patents] . . . With diverse pump
70[Patents] . . Peripheral motive fluid inlet
71[Patents] . . Axial inlet for pumped fluid
72[Patents] . . . Peripheral pumped fluid outlet
73[Patents] . By ignition of motive fluid
74[Patents] . . With pumped fluid condition responsive ignition means
75[Patents] . . With fluid momentum utilizing means
76[Patents] . Jet pump with motive fluid generating pump
77[Patents] . . Recirculation of separated motive fluid
78[Patents] . . Entrainment at exit of impeller
79[Patents] . . Jet delivers back to generating pump
80[Patents] . . . Rotary nonexpansible chamber-type generating pump
81[Patents] . . . . Multiple-stage rotary pump
82[Patents] . . . . Changeable jet location (e.g., deep or shallow well)
83[Patents] . . . . Jet within rotary pump casing
84[Patents] . . Rotary nonexpansible chamber-type generating pump
85[Patents] . Diverse pumps
86[Patents] . . Including pneumatic displacement
87[Patents] . . Including jet pump
88[Patents] . . . Diverse pump motor exhaust is jet motive fluid
89[Patents] . . . With rotary nonexpansible chamber type
90[Patents] . . Including aerated column
91[Patents] . . . Diverse pump motor exhaust is aeration fluid
92[Patents] . Liquid piston
93[Patents] . . Moving contracting chamber
94[Patents] . . . Helical chamber
95[Patents] . . . Movement of chamber cyclically controls flow of liquid into chamber for cyclic operation
96[Patents] . . . Liquid supporting chambers move liquid to pump fluid
97[Patents] . . . Relatively movable chambers
98[Patents] . . . Reciprocating
99[Patents] . . Mercury piston
100[Patents] . . Tide or wave
101[Patents] . . Piston level responsive control for cyclic operation
102[Patents] . . . Plural chambers
103[Patents] . . Plural chambers
104[Patents] . . Momentum piston
105[Patents] . By condensation of motive fluid
106[Patents] . . Plural alternating pumps
107[Patents] . . With condition responsive control means
108[Patents] . Aerated column
109[Patents] . . Valved gas inlet
110[Patents] . . . With pumped fluid velocity or flow responsive valve operating means
111[Patents] . . . Plural serially actuated valves
112[Patents] . . . With flexible pressure responsive sensing element (i.e., bellows, diaphragm, etc.)
113[Patents] . . . . Sensing element controls pilot valve
114[Patents] . . . With pilot valve
115[Patents] . . . Valve member actuated responsive to absolute gaseous motive fluid pressure or flow rate
116[Patents] . . . Controlled by means responsive to liquid level accumulation in column
117[Patents] . . . Valve biased open by static pressure of pumped fluid
118[Patents] . Liquid pumped by supplying or exhausting gaseous motive fluid to or from pumping chamber
119[Patents] . . Motive fluid pumped by contact with a liquid
120[Patents] . . With condition responsive control of motive fluid vacuum or pressure generating means
121[Patents] . . Serially connected pumping chambers
122[Patents] . . Alternate pumping from plural pumping chambers
123[Patents] . . . Motive fluid in one chamber controlled by condition in second chamber
124[Patents] . . . . Responsive to weight of pumped fluid
125[Patents] . . . . Responsive to liquid level of pumped fluid
126[Patents] . . With float actuated control means
127[Patents] . . . Plural floats in single pumping chamber
128[Patents] . . . With intermediate pilot valve
129[Patents] . . . With intermediate electrical actuating means
130[Patents] . . . Control of motive fluid inlet (e.g., atmosphere, etc.)
131[Patents] . . . . With control of motive fluid outlet
132[Patents] . . . . . With control of pumped fluid outlet
133[Patents] . . . . . With overcenter valve actuator means
134[Patents] . . . Control of motive fluid outlet
135[Patents] . . . . With control of pumped fluid outlet
136[Patents] . . . . With control of pumped fluid inlet
137[Patents] . . Cyclic pumping
138[Patents] . . . Control by liquid level sensing means
139[Patents] . . . Control by condition of pumped fluid
140[Patents] . . . . Movable pumping chamber
141[Patents] . . . . Responsive to flow of pumped fluid
142[Patents] . . . . Responsive to pumped fluid pressure
143[Patents] . . . Motive fluid supply or exhaust valve responsive to motive fluid pressure
144[Patents] . . . Correlated motive fluid valve and pressure or vacuum generating means
145[Patents] . . . Correlated supply - exhaust of motive fluid or vacuum generating means
146[Patents] . . . . With pilot valve
147[Patents] . . . . Unitary supply - exhaust valve
148[Patents] . . With vacuum generator
149[Patents] . . . With pressure generator
150[Patents] . Gravity flow motive fluid
151[Patents] . Jet
152[Patents] . . Vapor condensation vacuum diffusion type
153[Patents] . . . With cooling or heat insulation means
154[Patents] . . . Vertical stack from generator with reverse flow nozzle
155[Patents] . . Flue type
156[Patents] . . . With spark arrester
157[Patents] . . . Regulation
158[Patents] . . With motive fluid generator
159[Patents] . . . Internal-combustion engine motive fluid source
160[Patents] . . Cleaning by separate fluid or diverted motive fluid
161[Patents] . . Radial disc-type motive fluid jet
162[Patents] . . Interrelated overflow and motive fluid valves
163[Patents] . . Successive introduction of motive fluid
164[Patents] . . . With interstage cooling
165[Patents] . . . Individually controlled motive fluid flows
166[Patents] . . . . Sequential
167[Patents] . . . Central and peripheral motive fluid supply
168[Patents] . . . One motive fluid flow surrounds nozzle tube of another
169[Patents] . . . Laterally spaced parallel motive fluid flows
170[Patents] . . . In-line motive fluid flows
171[Patents] . . Tangential motive fluid supply (i.e., vortex type)
172[Patents] . . Concentric reverse flow motive fluid and discharge conduits
173[Patents] . . With cooling
174[Patents] . . Successive entrainment of pumped fluid
175[Patents] . . With priming or overflow removal jet
176[Patents] . . Parallel entrainments with separate combining tubes
177[Patents] . . Annular motive fluid stream entrains pumped fluid outside and inside
178[Patents] . . Selectively usable flow confining members (e.g., nozzles, combining tubes, etc.)
179[Patents] . . Plural motive fluid jets or sources for single entrainment
180[Patents] . . . Individual or relative control
181[Patents] . . Faucet or flexible hose attached
182[Patents] . . Regulation
182.5[Patents] . . . Liquid level responsive
183[Patents] . . . By position of nozzle relative to combining tube
184[Patents] . . . . Pressure controlled
185[Patents] . . . With main line downstream control
186[Patents] . . . By bypassing motive fluid from nozzle
187[Patents] . . . By controlling motive fluid
188[Patents] . . . . Interrelated with pumped fluid control
189[Patents] . . . . Pressure controlled
190[Patents] . . . Pumped fluid inlet valve
191[Patents] . . . . Pressure controlled
192[Patents] . . . Pressure controlled overflow
193[Patents] . . . . By movable conduit or conduit wall (e.g., combining tube)
194[Patents] . . With means to whirl pumped fluid
195[Patents] . . Specific material
196[Patents] . . Expressed mathematically or dimensionally
197[Patents] . . Peripheral motive fluid supply
198[Patents] . . Specific motive fluid nozzle
199.1[Patents]DIVERSE PUMPS
199.2[Patents] . Priming and venting
200[Patents] . Priming with liquid level responsive control
201[Patents] . Including rotary nonexpansible chamber type
202[Patents] . . Diverse pump controlled by rotary pump condition
203[Patents] . . Preceding diverse pump
204[Patents] . Moving partition or cylinder of rotary pump forms or actuates reciprocating pump
205[Patents] . Series
206[Patents] . . Rotary expansible chamber type precedes reciprocating
207[Patents]BY HEATING OF PUMPED FLUID
208[Patents] . Vapor generator type
209[Patents] . . With inlet valve
210[Patents]PUMP FLUID BIASED OVERCENTER LOAD EQUALIZER
211[Patents]INERTIA-TYPE PUMPING MEMBER OR DRIVE MEANS
211.5[Patents]LIQUID LEVEL RESPONSIVE CONTROL OF DISPLACEMENT, VOLUMETRIC CAPACITY, OR DRIVE TRANSMISSION
212[Patents]CONDITION RESPONSIVE CONTROL OF DRIVE TRANSMISSION OR PUMP DISPLACEMENT
213[Patents] . Having condition responsive pumped fluid control
214[Patents] . Having means to hold or resist movement of pumping element
215[Patents] . By changing phasing of plural pistons in single chamber
216[Patents] . Plural pumps with individual or relative control
217[Patents] . Reversible flow pump
218[Patents] . Adjustable cam or linkage
219[Patents] . . Radially adjustable stator
220[Patents] . . . Rotary expansible chamber pump
221[Patents] . . Radial cam or eccentric
222.1[Patents] . . Axial cam
222.2[Patents] . . . With sump pressure actuation
223[Patents] . Disconnectable drive element (e.g., clutch, belt, shifter, etc.)
225[Patents]INTENSIFIER
226[Patents] . Ram type
227[Patents] . . Multiple drive pipe
228[Patents]WITH CONDITION RESPONSIVE CONTROL OF COOLANT OR LUBRICANT
229[Patents]OPERATED BY ART DEVICE
230[Patents] . Chair
231[Patents] . Vehicle mounted or attached
232[Patents] . . Scoop type
233[Patents] . . Wheel or axle
234[Patents]AMBULANT, BODY SUPPORTED, OR WITH CARRYING HANDLE
235[Patents] . Pump driven by traverse movement
236[Patents]CONVERTIBLE TO APPARATUS OF A DIFFERENT CLASS
237[Patents] . Motor and pump
238[Patents]CHANGEABLE BY ASSEMBLY OR DISASSEMBLY
239[Patents] . For reverse drive or flow
240[Patents]INERTIA LIQUID PISTON (E.G., MOMENTUM, ETC.)
241[Patents] . Movable confining means
242[Patents]POSITION RESPONSIVE BYPASS BETWEEN PLURAL PUMP CHAMBERS
243[Patents]WITH INTERCOOLER
244[Patents]SUCCESSIVE STAGES
245[Patents] . Fluid motor for one stage supplied from another stage
246[Patents] . Stages driven by relatively movable motor working members
247[Patents] . . Rotary
248[Patents] . Parallel stages to or from single stage
249[Patents] . Prior stage delivers to atmospheric chamber
250[Patents] . With interstage intake or additional inlet to latter stage
251[Patents] . With interstage discharge or additional discharge from former stage
252[Patents] . . Pressure responsive interstage discharge
253[Patents] . Condition responsive control of fluid
254[Patents] . Reciprocating rigid stages
255[Patents] . . Crankcase forms stage or interstage flow path
256[Patents] . . Stages comprise oppositely moving valved pumping members
257[Patents] . . . Aligned
258[Patents] . . Reciprocating cylinder and piston
259[Patents] . . Including valved piston
260[Patents] . . . Piston forms or carries inlet and outlet valve for one stage
261[Patents] . . . Serial interstage distributors in piston
262[Patents] . . . Valve in piston is first stage inlet valve
263[Patents] . . . With additional pumping member in parallel flow path
264[Patents] . . . Fluid motor driven
265[Patents] . . Relatively movable
266[Patents] . . Three or more
267[Patents] . . Series double acting
268[Patents] . . Unidirectionally acting rigidly connected pumping members
269[Patents]THREE OR MORE CYLINDERS ARRANGED IN PARALLEL, RADIAL, OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS
270[Patents] . Condition responsive fluid control
271[Patents] . Motor driven
272[Patents] . Continuous unidirectional fluid bias on reciprocating member
273[Patents] . Radial cylinders
274[Patents]CONDITION RESPONSIVE VARIABLE VOLUMETRIC CAPACITY EXPANSIBLE CHAMBER PUMP (I.E., CLEARANCE CONTROL)
275[Patents] . Valved clearance chamber
276[Patents] . . Connectable clearance chambers of opposed pump chambers
277[Patents] . . Plural chambers connected to single pump chamber
278[Patents]EXTERNAL CONDITION RESPONSIVE PUMPED FLUID CONTROL
279[Patents]WITH CONDITION RESPONSIVE PUMPED FLUID CONTROL
280[Patents] . Responsive to pump created drive motor condition
281[Patents] . Lubricant condition responsive
282[Patents] . Plural separate sensing means for a single fluid controller
283[Patents] . Bypass or relief valve controls venting by movable pump chamber part
284[Patents] . Bypass or relief valve carried by movable pumping member
285[Patents] . Valve passage directly connecting concurrently contracting and expanding nonrotary pump chambers
286[Patents] . Plural pump units with individual or relative control
287[Patents] . . Diverse capacity pumps
288[Patents] . . Sequentially operated separate relief or bypass passages
289[Patents] . Variable cutoff or pumping member controlled port
290[Patents] . Having timer or delay means for fluid controller
291[Patents] . Reversibly driven pump having bypass active in either flow direction
292[Patents] . Pumped fluid temperature responsive
293[Patents] . Driven pump part speed responsive
294[Patents] . . Centrifugally actuated
295[Patents] . Inlet throttle or stop valve
296[Patents] . Bypass or relief valve part carried by or carries distributor part
297[Patents] . Expansible chamber pump distributor operation modified
297.5[Patents] . . Liquid level responsive
298[Patents] . . Inlet valve
299[Patents] . Normally open bypass or relief passage closed by increased pressure or flow
300[Patents] . Fluid flow rate responsive
301[Patents] . Inlet pressure increase opens bypass from pump inlet to discharge
302[Patents] . Plural paths having individual condition responsive control means
303[Patents] . . Sequentially opened main line and bypass or relief paths
304[Patents] . . Plural bypass or relief paths
305[Patents] . Manual actuation of condition responsive valve
306[Patents] . Pump inlet or pump chamber vented to ambient (e.g., vacuum breaker)
307[Patents] . Pressure responsive relief or bypass valve
308[Patents] . . Having additional relief or bypass valve
309[Patents] . . Responsive to pump inlet condition
310[Patents] . . Rotary expansible chamber pump
311[Patents] . . Adjustable spring loaded valve
312[Patents]WITH MUFFLER ACTING ON PUMP FLUID
313[Patents]COMBINED
314[Patents]SINGLE ACTING CHANGEABLE TO OR FROM DOUBLE ACTING
315[Patents]REVERSE FLOW WITH UNIDIRECTIONAL DRIVE OR UNIDIRECTIONAL FLOW WITH REVERSE DRIVE
316[Patents]CORRELATED PUMP AND MOTOR OR CLUTCH CONTROL
317[Patents] . Pump distributor control
318[Patents] . . Mechanically interconnected pump and fluid motor distributors
319[Patents]INCLUDING DISENGAGEABLE ROTARY OR FRANGIBLE DRIVE CONNECTION
320[Patents]SERIALLY FORMED PUMPING CHAMBERS (E.G., ENDLESS)
321[Patents]MOTOR DRIVEN
322[Patents] . Magnetostrictive chamber
323[Patents] . Pump motor or starter driven by pump fluid
324[Patents] . Pump operated as motor to start prime mover drive
325[Patents] . Reversely rotated for starting
326[Patents] . Including means for selectively varying motor speed or rotary motor direction
327[Patents] . Reaction motor
328[Patents] . Spring or weight motor
329[Patents] . . Fluid weight (e.g., gravity vessel)
330[Patents] . Tide or wave motor
331[Patents] . . Float
332[Patents] . . . Pivoted
333[Patents] . . . Guided
334[Patents] . Fluid current motor
335[Patents] . . Including alternate drive
336[Patents] . . Rotary parallel axis type
337[Patents] . Buoyant motor
338[Patents] . Relatively movable pumping members driven by relatively movable working members
339[Patents] . . Nonrotary pumping and fluid motor working members
340[Patents] . . . Common expansible chamber for oppositely movable working members
341[Patents] . . . . Mechanically interconnected
342[Patents] . . . Including closed fluid interconnection between working members
343[Patents] . . . Including mechanical interconnection to cause relative motion
344[Patents] . . . Position of one working member controls motive fluid valve for another
345[Patents] . . . . Control by single member responsive to position of each of plural working members
346[Patents] . . . . Independently operated valve for each working member
347[Patents] . . . Single member controls motive fluid for each working member
348[Patents] . Common rotary pumping and fluid motor working member
349[Patents] . Common pump and motor chamber
350[Patents] . Motor rotor intermediate coaxial pump rotors
351[Patents] . Pump rotor intermediate coaxial motor rotors
352[Patents] . Motor within rotary pumping member
353[Patents] . . Armature within pumping member
354[Patents] . . . Stator within armature
355[Patents] . Pump within rotary working member
356[Patents] . . Pump within armature
357[Patents] . Pump fluid communicates with sealed chamber containing armature
358[Patents] . Pump - motor unit raised in vertical conduit by pressure fluid applied below unit
359[Patents] . Adjustable motor and pump rotor unit or relatively adjustable aligned pump and motor rotary shafts
360[Patents] . Including means for facilitating assembly or disassembly of pump to or from motor or fixed support
361[Patents] . Pump and motor unitarily adjustable relative to fixed support
362[Patents] . Pump and motor interconnected by endless flexible transmission element
363[Patents] . Resiliently mounted pump or motor
364[Patents] . Internal-combustion engine
365[Patents] . Axial thrust balancing means for rotary pump and motor
366[Patents] . Including means utilizing pump fluid for augmenting cooling, lubricating, sealing, or cleaning of motor
367[Patents] . . Heat exchange means between pump fluid and secondary motor contacting fluid
368[Patents] . . Including additional means for motivating fluid flow to or from motor (e.g., auxiliary pump, pump fluid induced flow path, etc.)
369[Patents] . . Pump fluid directed to motor via downstream branched flow path
370[Patents] . . . Recirculated through pump
371[Patents] . . Pump fluid flows serially from motor through pump
372[Patents] . Interrelated or common lubricating or cooling means for pump and motor
373[Patents] . With means to prevent heat transfer between pump and motor
374[Patents] . Including manual, mechanical, or diverse drive
375[Patents] . Fluid motor
376[Patents] . . Steam motor discharge into pump fluid
377[Patents] . . Serial flow fluid from pumping chamber through motor working chamber
378[Patents] . . . Pulsator type
379[Patents] . . With motive fluid generator
380[Patents] . . . Internal-combustion engine
381[Patents] . . . Combustion products generator for motor
382[Patents] . . . Plural pumping members; one additionally supplying motive fluid for second
383[Patents] . . . Pulsator or fluid link
384[Patents] . . . . Pneumatic
385[Patents] . . . . With means to supply or vent pulsator fluid
386[Patents] . . . . . Working member position responsive
387[Patents] . . . . . Pulse piston position responsive
388[Patents] . . . . . Pressure responsive
389[Patents] . . . . Plural collapsible walls
390[Patents] . . . Fluid pump
391[Patents] . . Motor discharge into or upstream of pumping chamber
392[Patents] . . Common pumping and motor working member
393[Patents] . . . With additional unitary common pumping and motor working member
394[Patents] . . . Collapsible common member
395[Patents] . . . . Diaphragm
396[Patents] . . Rectilinearly reciprocating motor working members coaxial with intermediate unitary pumping member
397[Patents] . . Rectilinearly reciprocating pumping members coaxial with intermediate unitary motor working member
398[Patents] . . Rectilinearly reciprocating cylinder and piston-type motor
399[Patents] . . . Rectilinearly reciprocating cylinder and piston-type pump
400[Patents] . . . . Interconnected moving cylinder and piston
401[Patents] . . . . Integral pump and motor pistons
402[Patents] . . . . . Constantly applied force in education stroke direction
403[Patents] . . . . . Double acting motor piston
404[Patents] . . . . . . Double acting pump piston
405[Patents] . . Rotary motor
406[Patents] . . . Unitary pump and motor rotors
407[Patents] . . . . Overhung from central support
408[Patents] . . . . Axial flow motor and pump
409[Patents] . . . . Axial flow motor and centrifugal pump
410.1[Patents] . Electric or magnetic motor
411[Patents] . . Including electric power generating or storage means
412[Patents] . . Collapsible wall pump
413.1[Patents] . . . Diaphragm type
413.2[Patents] . . . . Piezoelectric driven
413.3[Patents] . . . . Of semiconductor material (e.g., silicon, germanium, etc.)
414[Patents] . . Internal - external pressure balancer
415[Patents] . . Reciprocating rigid pumping member
416[Patents] . . . Reciprocating motor
417[Patents] . . . . Unitary pump and motor working member
418[Patents] . . . . . Opposed pumping member faces (e.g., double acting)
419[Patents] . . . Relatively movable pumping members
420[Patents] . . Pump magnetically coupled to rotary drive
421[Patents] . . Trapped air motor seal (i.e., diving bell type)
422[Patents] . . Sealed service conduit
423.1[Patents] . . Rotary motor and rotary nonexpansible chamber pump
423.2[Patents] . . . Vacuum cleaner
423.3[Patents] . . . Submersible type
423.4[Patents] . . . Turbomolecular pump
423.5[Patents] . . . Plural units
423.6[Patents] . . . Having nonflexible means to transmit power between motor shaft and pump shaft
423.7[Patents] . . . With specific motor details
423.8[Patents] . . . Having additional means to remove heat from pump or motor
423.9[Patents] . . . Having means to prevent debris from entering pump
423.15[Patents] . . . Having means to mount pump and motor in working position
423.11[Patents] . . . Having means to prevent fluid leaking between pump and motor
423.12[Patents] . . . Having bearing
423.13[Patents] . . . . With lubricator
423.14[Patents] . . . With specific housing details
424.1[Patents] . . . Supported for rotation on vertical axis
424.2[Patents] . . . . Motor mounted below pump
410.2[Patents] . . Having piezoelectric driven blade
410.3[Patents] . . Rotary expansible chamber pump
410.4[Patents] . . . Interengaging rotary pumping members
410.5[Patents] . . . Helical pumping member having planetary movement (e.g., scroll)
425[Patents]SEPARATE MANUAL AND POWER DRIVEN PUMPING MEMBERS
426[Patents]PLURAL PUMPS WITH INDIVIDUAL OR RELATIVE CONTROL
427[Patents] . Distributor adjustment
428[Patents] . Bypass control
429[Patents] . Adjustment with respect to common drive
430[Patents]INCLUDING MEANS TO (1) AGITATE PUMP FLUID, OR (2) PREVENT FOREIGN MATERIAL SETTLING FROM PUMP FLUID
431[Patents] . By application of separate fluid
432[Patents]INCLUDING APPLICATION OF SEPARATE FLUID TO PUMP VALVE
433[Patents] . Liquid pool seal for gas pump valve
434[Patents]INCLUDING SEPARATE PORT ON NONCYCLIC VALVE FOR DRAINING PUMP PORTION
435[Patents]INCLUDING SEPARATE PORT ON NONCYCLIC VALVE FOR VENTING OR FILLING PUMP PORTION
436[Patents]TRANSVERSELY MOVABLE IMPELLING MEMBER (E.G., PADDLE)
437[Patents]EXPANSIBLE CHAMBER TYPE
438[Patents] . Liquid coolant introduced into gas pump chamber or inlet
439[Patents] . Having additional chamber intake connection from nonpumping space
440[Patents] . Having separate noncyclic valve (e.g., bypass, etc.)
441[Patents] . . For serial control of pump fluid (e.g., throttle valve)
442[Patents] . Selectively usable plural inlet or outlet distributors for single chamber
443[Patents] . Pressure responsive distributor opened responsive to pumping member position
444[Patents] . . Distributor in piston
445[Patents] . . . Including means to open distributor in fixed chamber wall
446[Patents] . Having means for holding pressure responsive distributor open
447[Patents] . Pressure responsive distributor continuously biased open
448[Patents] . Pump mounted in vertical tubular flow conduit removable as unit by driving rod manipulation
449[Patents] . . Removable unit having piston normally fixed in conduit
450[Patents] . . With latching or anchoring means released by rod movement
451[Patents] . Valve element mounted in fixed chamber wall removable with pumping member
452[Patents] . . By separable engageable connecting elements
453[Patents] . . . Threaded connecting elements
454[Patents] . Including valve assembly, disassembly, or inspection facilitating means
455[Patents] . Having valve parts relatively moved for nonvalving function
456[Patents] . Relatively movable serial distributors
457[Patents] . . Including distributor formed by moving cylinder or liner
458[Patents] . . Plural pressure responsive distributors
459[Patents] . . . Located within piston (e.g., valved piston)
460[Patents] . Moving cylinder
461[Patents] . . Cylinder rotates or oscillates about longitudinal axis
462[Patents] . . Unidirectionally rotating cylinder
463[Patents] . . . Having second cylinder unitary with piston of first
464[Patents] . . Cylinder oscillates about axis transverse to longitudinal axis
465[Patents] . . . Inlet or discharge controlled by cooperating ports in cylinder or piston and fixed member
466[Patents] . . Inlet or discharge controlled by cooperating port in reciprocating cylinder and fixed member
467[Patents] . . Relatively movable cylinders
468[Patents] . . Having integral pump piston or external pumping face
469[Patents] . . Cylinder and piston reciprocate on common axis
470[Patents] . Biasing means effects induction stroke of abutment driven, vacuum producing pumping member
471[Patents] . Biasing means effects eduction stroke of abutment driven, pressure producing pumping member
472[Patents] . Bellows-type chamber
473[Patents] . . Plural bellows
474[Patents] . Elongated flexible chamber wall progressively deformed
475[Patents] . . Plural chambers
476[Patents] . . Deformation by rolling or sliding engagement member
477.1[Patents] . . . Plural spaced engagement members or member portions
477.2[Patents] . . . . Cassette
477.3[Patents] . . . . Specific rollers or slides structure
477.4[Patents] . . . . . Helical slide
477.5[Patents] . . . . . Roller axes or slide contact surfaces at significant angle with drive axis
477.7[Patents] . . . . . Biased rollers or slides
477.8[Patents] . . . . . Adjustable rollers or slides
477.6[Patents] . . . . . Positively driven rollers
477.9[Patents] . . . . Specific backing member for flexible wall
477.11[Patents] . . . . . Adjustable backing
477.12[Patents] . . . . Specific flexible wall or interposed flexible member
477.13[Patents] . . . . Flexible tube without backing member
477.14[Patents] . . . . Endless chain or belt
478[Patents] . Inlet and discharge distributors at opposite ends of tubular flexible wall pumping chamber
479[Patents] . Distributor formed from integral portion of flexible wall pumping member
480[Patents] . Valve in collapsible wall pumping member
481[Patents] . Oscillating pumping member
482[Patents] . . Inlet distributor in abutment wall for pumping member
483[Patents] . . . Having discharge distributor in pumping member
484[Patents] . . Distributor in pumping member
485[Patents] . Delivery to different ports on successive strokes
486[Patents] . Plural pumping members in single pump chamber
487[Patents] . . Coaxial reciprocating pumping members
488[Patents] . . . Form opposite chamber walls
489[Patents] . Control by withdrawal or tilting of pump piston relative to cylinder
490[Patents] . Pumping member position controlled port
491[Patents] . . Common pumping member controls inlet or discharge for plural chambers
492[Patents] . . . Control by movement of pumping member about axis
493[Patents] . . Including plural controlled inlet or outlet flow paths
494[Patents] . . . Having means to selectively effect control at different positions of pumping member stroke
495[Patents] . . . Pumping member comprises valved piston
496[Patents] . . Having serial control of inlet or discharge flow path
497[Patents] . . Pumping member controlled end wall port
498[Patents] . . Longitudinally spaced inlet and discharge sidewall ports
499[Patents] . . Having means to effect control at different positions of pumping member stroke
500[Patents] . . Control by movement of pumping member about axis
501[Patents] . . Having coextensive distributor opposite pumping member end face
502[Patents] . Multiple cyclic outlet paths
503[Patents] . Multiple cyclic inlet paths
504[Patents] . Plural outlet paths to single discharge line acting under different conditions
505[Patents] . Electrically or magnetically actuated distributor
506[Patents] . Distributor movement adjustable
507[Patents] . Distributor moved by separate fluid responsive surface
508[Patents] . . Including mechanical actuation
509[Patents] . Distributor part forms traversed movable pump chamber wall portion
510[Patents] . Mechanically actuated distributor
511[Patents] . . Piston carried distributor, one frictionally engages chamber wall, drive rod integral with other (e.g., piston driven by valve element through lost motion connection, etc.)
512[Patents] . . . Unitary distributor element controls inlet or discharge for plural chambers
513[Patents] . . . Conical engagement
514[Patents] . . Distributor in piston
515[Patents] . . Plural pumping chambers
516[Patents] . . . Common element forms inlet or discharge distributor for plural chambers
517[Patents] . . . . Element forms both inlet and discharge distributor
518[Patents] . . Common element forms inlet and discharge distributor
519[Patents] . . . Element moves about axis
520[Patents] . . Distributor abutted by or frictionally engaged with pumping member
521[Patents] . Plural pumping chambers
522[Patents] . . Discharge conduit for first chamber communicates with nonpumping portion or second pumping member
523[Patents] . . Including valved piston
524[Patents] . . . Unitary or interconnected elements form inlet or discharge distributors for plural chambers
525[Patents] . . . Common piston includes valves for plural axially aligned chambers
526[Patents] . . . . Common inlet or discharge conduit mounted on piston
527[Patents] . . . . Fluid conduit for one chamber extends through portion of another
528[Patents] . . . Fluid conduit for one chamber extends through portion of another
529[Patents] . . . Parallel laterally spaced relatively movable pistons
530[Patents] . . . Including nonvalved piston
531[Patents] . . Unitary or interconnected elements form inlet or discharge distributors for plural chambers
532[Patents] . . . Unitary element movable about an axis
533[Patents] . . Common discharge conduit interposed between spaced parallel chambers
534[Patents] . . Chambers formed at opposite ends of rectilinearly moving pumping member
535[Patents] . . . All discharge distributors positioned laterally of pumping member path
536[Patents] . . . . Inlet and discharge distributors positioned laterally of pumping member path
537[Patents] . . . . . All distributors positioned on same side of pumping chamber
538[Patents] . . Inlet and discharge distributors at adjacent end of aligned chambers
539[Patents] . . Parallel laterally spaced relatively movable pumping members
540[Patents] . Having pulsation dampening fluid receiving space
541[Patents] . . Space formed on pumping member
542[Patents] . . Inlet and discharge spaces
543[Patents] . . Direct contact with confined compressible fluid
544[Patents] . . . Manually operated pump
545[Patents] . Valved piston
546[Patents] . . Piston contains inlet and outlet valves
547[Patents] . . Fluid conduit fixed to piston
548[Patents] . . Having rigidly attached imperforate wall member
549[Patents] . . Having separate means biasing valve closed
550[Patents] . . Flexible
551[Patents] . . Hinged
552[Patents] . . Reciprocating
553[Patents] . . . Annular
554[Patents] . . . Ball type
555.1[Patents] . Fluid serially moved to opposite side of pumping member
555.2[Patents] . . Well swabs
556[Patents] . . Control by movable rigid piston side wall
557[Patents] . Pump chamber in constant communication with inlet or discharge conduit
558[Patents] . First distributor includes passage controlled by second distributor (i.e., inlet and outlet)
559[Patents] . Having pumping chamber pressure responsive distributor
560[Patents] . . Single unitary element forms inlet and discharge distributor
561[Patents] . . Pumping member position responsive stop for distributor
562[Patents] . . Having means on pumping member for accommodating distributor portion
563[Patents] . . Similar inlet and discharge distributors of different size or material
564[Patents] . . . Annular-type distributors
565[Patents] . . Hinged inlet and discharge distributors in aligned conduits
566[Patents] . . Nonmetallic inlet or discharge distributor
567[Patents] . . Inlet and discharge distributors in coaxial ports
568[Patents] . . . Transverse to axis of pumping member
569[Patents] . . Distributor positioned opposite pumping member end face
570[Patents] . . . Distributor coextensive with pumping member end face
571[Patents] . . . Inlet and discharge distributors
572[Patents]MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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900[Patents]SLURRY PUMPS (E.G., CONCRETE)
901[Patents]CRYOGENIC PUMPS
902[Patents]HERMETICALLY SEALED MOTOR PUMP UNIT
903[Patents]TREADLE OPERATED
904[Patents]WELL PUMP DRIVEN BY FLUID MOTOR MOUNTED ABOVE GROUND
******************************
DIGEST
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DIG 1[Patents]Materials digest


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Last Modified: 6 October 2000