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Class Information
Number: 417/312
Name: Pumps > With muffler acting on pump fluid
Description: Apparatus including means to attenuate sound created by operation of the pump, said means acting upon the pump fluid to accomplish the attenuation.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7607897 |
Reciprocating compressor |
Oct. 27, 2009 |
| 7607900 |
Multi-cylinder reciprocating compressor |
Oct. 27, 2009 |
| 7607905 |
Fluid compressing system having oil-releasing port being between oil chamber and oil-adjusting tank for returning oil |
Oct. 27, 2009 |
| 7600985 |
Pump assembly, suppression apparatus for use with a pump, and method of controlling a pump assembly |
Oct. 13, 2009 |
| 7588424 |
Linear compressor unit |
Sep. 15, 2009 |
| 7585161 |
Compressor |
Sep. 8, 2009 |
| 7585158 |
Piston engine comprising a pulsation-reducing device |
Sep. 8, 2009 |
| 7578659 |
Compressor discharge muffler |
Aug. 25, 2009 |
| 7568898 |
Compressor sound suppression |
Aug. 4, 2009 |
| 7563077 |
Quiet fluid pump |
Jul. 21, 2009 |
| 7559406 |
Acoustic fluid machine |
Jul. 14, 2009 |
| 7540720 |
Heat-insulating mechanism for compressor |
Jun. 2, 2009 |
| 7540722 |
Blower |
Jun. 2, 2009 |
| 7528332 |
High speed actuating device and circuit breaker |
May. 5, 2009 |
| 7524172 |
Vibration reduction structure of reciprocating compressor |
Apr. 28, 2009 |
| 7494328 |
NVH and gas pulsation reduction in AC compressor |
Feb. 24, 2009 |
| 7491040 |
Compact compressor |
Feb. 17, 2009 |
| 7488377 |
Device for the intake and compression of at least one gas in fuel cell system |
Feb. 10, 2009 |
| 7478996 |
Reciprocating compressor having assembly structure of suction muffler |
Jan. 20, 2009 |
| 7438536 |
Compressors including a plurality of oil storage chambers which are in fluid communication with each other |
Oct. 21, 2008 |
| 7431571 |
Noise reduction muffler for hermetic rotary compressor |
Oct. 7, 2008 |
| 7398655 |
Vibration isolation apparatus for wine refrigerator |
Jul. 15, 2008 |
| 7396219 |
Discharge tube of hermetic compressor |
Jul. 8, 2008 |
| 7381032 |
Hermetic compressor and freezing air-conditioning system |
Jun. 3, 2008 |
| 7316291 |
Suction muffler for a hermetic refrigerant compressor |
Jan. 8, 2008 |
| 7306438 |
Suction gas guiding system for reciprocating compressor |
Dec. 11, 2007 |
| 7244108 |
Hermetic compressor with an improved cylinder head-suction muffler assembly |
Jul. 17, 2007 |
| 7229257 |
Horizontal type compressor |
Jun. 12, 2007 |
| 7210912 |
Reciprocating piston compressor having improved noise attenuation |
May. 1, 2007 |
| 7189068 |
Sound reduced rotary vane compressor |
Mar. 13, 2007 |
| 7181926 |
Oil separator and muffler structure |
Feb. 27, 2007 |
| 7156624 |
Compressor sound suppression |
Jan. 2, 2007 |
| 7153107 |
Compressor muffler assembly |
Dec. 26, 2006 |
| 7150603 |
Compressor |
Dec. 19, 2006 |
| 7150605 |
Reciprocating compressor |
Dec. 19, 2006 |
| 7147082 |
Suction muffler for a reciprocating hermetic compressor |
Dec. 12, 2006 |
| 7134847 |
Hermetic electric compressor having a suction muffler |
Nov. 14, 2006 |
| 7121814 |
Compressor sound suppression |
Oct. 17, 2006 |
| 7112038 |
Blower muffler and vibration isolation |
Sep. 26, 2006 |
| 7083395 |
Pump system for pumping liquefied gases |
Aug. 1, 2006 |
| 7075199 |
Reciprocating motor and reciprocating compressor having the same |
Jul. 11, 2006 |
| 7070397 |
Compressor suction gas feed assembly |
Jul. 4, 2006 |
| 7052247 |
Suction muffler for compressors, compressor with the suction muffler, and apparatus having refrigerant circulation circuit including the compressor |
May. 30, 2006 |
| 7052248 |
Closed compressor |
May. 30, 2006 |
| 7037068 |
Warm air blower for medical warming blankets |
May. 2, 2006 |
| 7032589 |
Portable ventilator |
Apr. 25, 2006 |
| 7029242 |
Hermetic compressor with one-quarter wavelength tuner |
Apr. 18, 2006 |
| 7014430 |
Cylinder assembly for compressors, compressor with the cylinder assembly, and apparatus having refrigerant circulation circuit including the compressor |
Mar. 21, 2006 |
| 7008180 |
Axial-flow fan and projector provided with the same |
Mar. 7, 2006 |
| 7000420 |
Compressor |
Feb. 21, 2006 |
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