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Class Information
Number: 417/383
Name: Pumps > Motor driven > Fluid motor > With motive fluid generator > Pulsator or fluid link
Description: Apparatus in which the means for increasing the pressure of the motive fluid comprises an enclosed chamber containing the motive fluid (i.e., pulsator fluid) the boundaries of said chamber being formed in part by a movable driving member (e.g., pulse pump piston) and the fluid motor working member (e.g., piston), said fluid being in a state of total confinement within the boundaries of said chamber during at least a portion of driving member movement, whereby movement of the driving member in one direction causes displacement of said fluid so as to transmit energy from the driving member through the medium of said fluid to said fluid motor working member, and at least a portion of said fluid returning from whence it came upon movement of the driven member in the opposite direction.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7134489 |
System for controlling the discharge of drilling fluid |
Nov. 14, 2006 |
| 7004731 |
Diaphragm pump having a gas venting surface |
Feb. 28, 2006 |
| 6767189 |
Method for the control and regulation of the oil pressure-gas pressure relationship of diaphragm compressors |
Jul. 27, 2004 |
| 6733252 |
Fluid-handling systems and components comprising a bladder pump, a methods therefor |
May. 11, 2004 |
| 6663359 |
Pump chamber having at least one spacer for inhibiting the pumping of a gas |
Dec. 16, 2003 |
| 6644937 |
Water powered pumping system with fluid link |
Nov. 11, 2003 |
| 6607361 |
Pumping method and device |
Aug. 19, 2003 |
| 6604915 |
Compact, high efficiency, smart material actuated hydraulic pump |
Aug. 12, 2003 |
| 6588209 |
Method and apparatus for optimizing the oil flow inside of a diaphragm compressor |
Jul. 8, 2003 |
| 6582206 |
Diaphragm chucking with elasticity adjustment |
Jun. 24, 2003 |
| 6568922 |
Pump cylinder and method of collecting pasty materials, liquids, gases and/or mobile objects |
May. 27, 2003 |
| 6568912 |
Method and a device for measuring the pump operating parameters of a diaphragm delivery unit |
May. 27, 2003 |
| 6554582 |
High pressure pump with improved hub |
Apr. 29, 2003 |
| 6554578 |
Diaphragm pump and device for controlling same |
Apr. 29, 2003 |
| 6547537 |
Air operated radial piston and diaphragm pump system |
Apr. 15, 2003 |
| 6485263 |
Systems for determining the volume of a volumetric chamber and pumping a fluid with a pump chamber |
Nov. 26, 2002 |
| 6464474 |
Nonrespiratory diaphragm chucking |
Oct. 15, 2002 |
| 6422834 |
Reversing valve for a diaphragm pump |
Jul. 23, 2002 |
| 6419463 |
Reversing valve for a diaphragm pump |
Jul. 16, 2002 |
| 6302653 |
Methods and systems for detecting the presence of a gas in a pump and preventing a gas from being pumped from a pump |
Oct. 16, 2001 |
| 6302660 |
Tube pump with flexible tube diaphragm |
Oct. 16, 2001 |
| 6264437 |
High pressure pump for all liquids |
Jul. 24, 2001 |
| 6257844 |
Pump device for pumping liquid foodstuff |
Jul. 10, 2001 |
| 6251293 |
Fluid dispensing system having independently operated pumps |
Jun. 26, 2001 |
| 6250502 |
Precision dispensing pump and method of dispensing |
Jun. 26, 2001 |
| 6193476 |
11/2 Piston force pump |
Feb. 27, 2001 |
| 6174144 |
Diaphragm piston pump |
Jan. 16, 2001 |
| 6162027 |
Fluid driven pump and portioning check valve |
Dec. 19, 2000 |
| 6155803 |
Rodless pumping system |
Dec. 5, 2000 |
| 6146102 |
Fuel injection system |
Nov. 14, 2000 |
| 6113361 |
Intensified high-pressure common-rail supply pump |
Sep. 5, 2000 |
| 5863184 |
Diaphragm pump apparatus |
Jan. 26, 1999 |
| 5857335 |
Hydraulic impulse rotational motor |
Jan. 12, 1999 |
| 5775884 |
Modular pump assembly |
Jul. 7, 1998 |
| 5709536 |
Hydro mechanical packingless pump and liquid spray system |
Jan. 20, 1998 |
| 5667368 |
Diaphragm metering pump including improved leak detection diaphragm |
Sep. 16, 1997 |
| 5647733 |
Diaphragm metering pump having modular construction |
Jul. 15, 1997 |
| 5645407 |
Balanced single stage linear diaphragm compressor |
Jul. 8, 1997 |
| 5616012 |
Ammonia pump |
Apr. 1, 1997 |
| 5429681 |
Electronic condiment dispensing apparatus |
Jul. 4, 1995 |
| 5348451 |
Pump apparatus |
Sep. 20, 1994 |
| 5332372 |
Modular double-diaphragm pump |
Jul. 26, 1994 |
| 5306122 |
Diaphragm pump construction |
Apr. 26, 1994 |
| 5292235 |
Membranes and neighboring members in pumps, compressors and devices |
Mar. 8, 1994 |
| 5275014 |
Heat pump system |
Jan. 4, 1994 |
| 5263827 |
Polyphase fluid diaphragm pump |
Nov. 23, 1993 |
| 5244360 |
Hydraulically controlled diaphragm pump for high pressures |
Sep. 14, 1993 |
| 5205722 |
Metering pump |
Apr. 27, 1993 |
| 5192198 |
Diaphragm pump construction |
Mar. 9, 1993 |
| 5188517 |
Pumping system |
Feb. 23, 1993 |
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