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Class Information
Number: 417/53
Name: Pumps > Processes
Description: Processes of pumping .
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7442012 |
Speed control for compressors |
Oct. 28, 2008 |
| 7431569 |
Pump health monitoring |
Oct. 7, 2008 |
| 7421316 |
Method and device for regulating fluid pump pressures |
Sep. 2, 2008 |
| 7415829 |
Piston compressor |
Aug. 26, 2008 |
| 7413411 |
Electronically controlled vacuum pump |
Aug. 19, 2008 |
| 7413413 |
System and method to reduce acoustic noise in screw compressors |
Aug. 19, 2008 |
| 7413615 |
Method of transferring polymerizable liquid and apparatus for transfer |
Aug. 19, 2008 |
| 7409997 |
Electric submersible pump with specialized geometry for pumping viscous crude oil |
Aug. 12, 2008 |
| 7404702 |
Debris evacuation apparatus and method for an oil pump |
Jul. 29, 2008 |
| 7396216 |
Submersible pump assembly for removing a production inhibiting fluid from a well and method for use of same |
Jul. 8, 2008 |
| 7387498 |
System and method for noise attenuation of screw compressors |
Jun. 17, 2008 |
| 7387499 |
System and method for testing the operation of a cooling fan |
Jun. 17, 2008 |
| 7383967 |
Apparatus and methods for pumping high viscosity fluids |
Jun. 10, 2008 |
| 7384249 |
Fluid metering system |
Jun. 10, 2008 |
| 7374406 |
System and method for reducing noise in multi-capacity compressors |
May. 20, 2008 |
| 7371052 |
Embedded fluid mixing device using a homopolar motor |
May. 13, 2008 |
| 7367787 |
Pumping unit for a liquid medium |
May. 6, 2008 |
| 7360998 |
Method of cleaning out blockages which prevent operation of a reciprocating downhole tubing pump |
Apr. 22, 2008 |
| 7335001 |
Apparatus and method for controlling operation of a reciprocating compressor |
Feb. 26, 2008 |
| 7331767 |
Method of stepless capacity control of a reciprocating piston compressor and piston compressor with such control |
Feb. 19, 2008 |
| 7316542 |
Fluid level control system |
Jan. 8, 2008 |
| 7314349 |
Fluid level control system for progressive cavity pump |
Jan. 1, 2008 |
| 7309216 |
Pump control and management system |
Dec. 18, 2007 |
| 7300257 |
Prevention of unpowered reverse rotation in compressors |
Nov. 27, 2007 |
| 7300258 |
Electromagnetic pump |
Nov. 27, 2007 |
| 7290990 |
Short reverse rotation of compressor at startup |
Nov. 6, 2007 |
| 7287966 |
Fuel injector driver circuit with energy storage apparatus |
Oct. 30, 2007 |
| 7284963 |
Zero maintenance pump |
Oct. 23, 2007 |
| 7284962 |
Micropump |
Oct. 23, 2007 |
| 7284961 |
Pumping system, replacement kit including piston and/or cylinder, and method for pumping system maintenance |
Oct. 23, 2007 |
| 7284956 |
Methods and apparatus for controlling a continuous flow rotary blood pump |
Oct. 23, 2007 |
| 7275916 |
Integrated engine/compressor control for gas transmission compressors |
Oct. 2, 2007 |
| 7275917 |
Safety device for hydraulic pump |
Oct. 2, 2007 |
| 7273355 |
Compressor assembly with piston having multiple cross sections |
Sep. 25, 2007 |
| 7267531 |
Current monitoring system and method for metering peristaltic pump |
Sep. 11, 2007 |
| 7264450 |
Pump unit and method for operating a pump unit |
Sep. 4, 2007 |
| 7259533 |
Method of controlling motor drive speed |
Aug. 21, 2007 |
| 7255683 |
System for detecting the status of a vent associated with a fluid supply upstream of an infusion pump |
Aug. 14, 2007 |
| 7252483 |
Method of managing time, at which maintenance in a gas compressor multiple system should be carried out |
Aug. 7, 2007 |
| 7247006 |
Method and apparatus for sealing an ultrahigh-pressure fluid system |
Jul. 24, 2007 |
| 7241115 |
Methods and apparatus for determining the presence or absence of a fluid leak |
Jul. 10, 2007 |
| 7234922 |
Pump pressure limiting engine speed control and related engine and sprinkler system |
Jun. 26, 2007 |
| 7229255 |
Fan with driving gear |
Jun. 12, 2007 |
| 7226273 |
Method of generating compressed air, and compressor arrangement for implementing the method |
Jun. 5, 2007 |
| 7226278 |
Shape memory alloy wire driven positive displacement micropump with pulsatile output |
Jun. 5, 2007 |
| 7223080 |
Double-acting, high pressure cryogenic pump |
May. 29, 2007 |
| 7223079 |
Quick loading peristaltic pump |
May. 29, 2007 |
| 7210911 |
Controller for variable displacement compressor and control method for the same |
May. 1, 2007 |
| 7207780 |
Multiple port dual diameter pumps |
Apr. 24, 2007 |
| 7195462 |
Method for controlling several pumps |
Mar. 27, 2007 |
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