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Class Information
Number: 417/416
Name: Pumps > Motor driven > Electric or magnetic motor > Reciprocating rigid pumping member > Reciprocating motor
Description: Apparatus wherein the working member of the electric motor alternately moves to-and-fro (includes oscillatory movement).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617874 |
Flexible matrix composite actuator for use in subsurface wellbores |
Nov. 17, 2009 |
| 7604520 |
Electrical linear motor for marine propulsion |
Oct. 20, 2009 |
| 7591638 |
Structure for fixing motor stator of reciprocating compressor |
Sep. 22, 2009 |
| 7544048 |
Universal vibratory pump |
Jun. 9, 2009 |
| 7540723 |
Reciprocating compressor |
Jun. 2, 2009 |
| 7476990 |
Linear actuator |
Jan. 13, 2009 |
| 7419367 |
Magnetically actuated pump |
Sep. 2, 2008 |
| 7382067 |
Linear actuator |
Jun. 3, 2008 |
| 7322804 |
Metering pump device for a vehicle heater |
Jan. 29, 2008 |
| 7316270 |
Oil pumping unit using an electrical submersible pump driven by a circular linear synchronous three-phase motor with rare earth permanent magnet |
Jan. 8, 2008 |
| 7316547 |
Reciprocating compressor driven by a linear motor |
Jan. 8, 2008 |
| 7287966 |
Fuel injector driver circuit with energy storage apparatus |
Oct. 30, 2007 |
| 7284474 |
Piston-pumping system having o-ring seal properties |
Oct. 23, 2007 |
| 7267533 |
Plunger assembly for use in reciprocating fluid pump employing reversing polarity motor |
Sep. 11, 2007 |
| 7259533 |
Method of controlling motor drive speed |
Aug. 21, 2007 |
| 7163384 |
Reciprocating compressor with a linear motor |
Jan. 16, 2007 |
| 7157814 |
Stator for reciprocating motor and manufacturing method thereof |
Jan. 2, 2007 |
| 7001158 |
Digital fluid pump |
Feb. 21, 2006 |
| 6966760 |
Reciprocating fluid pump employing reversing polarity motor |
Nov. 22, 2005 |
| 6960068 |
Center valve sleeve retention system for an oscillating pump |
Nov. 1, 2005 |
| 6960067 |
Reciprocating compressor having an inner core with a scratch resistant intermediate member |
Nov. 1, 2005 |
| 6956306 |
Linear actuator, and pump device and compressor device using the same |
Oct. 18, 2005 |
| 6942470 |
Motor pump system with axial through flow utilizing an incorporated flowmeter and pressure controller |
Sep. 13, 2005 |
| 6932584 |
Infusion device and driving mechanism and process for same with actuator for multiple infusion uses |
Aug. 23, 2005 |
| 6916159 |
Device and method employing shape memory alloy |
Jul. 12, 2005 |
| 6889596 |
Compressor cooler and its assembly procedure |
May. 10, 2005 |
| 6881042 |
Reciprocating compressor having reduced vibration |
Apr. 19, 2005 |
| 6875000 |
Reciprocating compressor |
Apr. 5, 2005 |
| 6875001 |
Reciprocating compressor |
Apr. 5, 2005 |
| 6863506 |
Reciprocating compressor |
Mar. 8, 2005 |
| 6802700 |
Oil supplying apparatus for opposed type reciprocating compressor |
Oct. 12, 2004 |
| 6796777 |
Low power electromagnetic pump |
Sep. 28, 2004 |
| 6746217 |
Reciprocating compressor |
Jun. 8, 2004 |
| 6746211 |
Operation control method resonance frequency of reciprocating compressor |
Jun. 8, 2004 |
| 6742998 |
Linear compressor with vibration canceling spring arrangement |
Jun. 1, 2004 |
| 6733245 |
Piston support structure of reciprocating compressor |
May. 11, 2004 |
| 6727607 |
Oscillating reluctance motor and reciprocating gas compressor using the same |
Apr. 27, 2004 |
| 6722862 |
Metering pump with combined inlet/outlet valve element |
Apr. 20, 2004 |
| 6700233 |
Brushless electric motor |
Mar. 2, 2004 |
| 6644945 |
Valve arrangement for limiting piston stroke collisions in a reciprocating compressor with a linear motor |
Nov. 11, 2003 |
| 6641377 |
Linear compressor with a plurality of support springs and a dual compression unit |
Nov. 4, 2003 |
| 6638035 |
Resonant assembly for a reciprocating compressor with a linear motor |
Oct. 28, 2003 |
| 6626650 |
Cyclically operated fluid displacement machine |
Sep. 30, 2003 |
| 6623255 |
Fluid transfer apparatus |
Sep. 23, 2003 |
| 6565333 |
Fluid discharge apparatus and fluid discharge method |
May. 20, 2003 |
| 6554588 |
Composite piston for a vibration pump |
Apr. 29, 2003 |
| 6554800 |
Compact pump motor system and dispensing process |
Apr. 29, 2003 |
| 6540490 |
Reciprocating compressor driven by a linear motor |
Apr. 1, 2003 |
| 6540491 |
Electromagnetic reciprocating compressor |
Apr. 1, 2003 |
| 6506030 |
Reciprocating pumps with linear motor driver |
Jan. 14, 2003 |
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