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Class Information
Number: 417/902
Name: Pumps > Hermetically sealed motor pump unit
Description: Pumps comprising a motor driving the pump, the motor and pump being disposed within a sealed casing such that no part of the motor-pump unit projects through the casing so as to require a running seal.










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8678794 Refrigerant compressor arrangement having a telescopic tube in suction opening Mar. 25, 2014
8636480 Compressor Jan. 28, 2014
8628305 Fluid intake and exhaust fittings for a compressor or pump Jan. 14, 2014
8618419 Electric compressor Dec. 31, 2013
8585373 Hermetic compressor Nov. 19, 2013
8578603 Compressor and manufacturing method thereof Nov. 12, 2013
8529224 Hermetic compressor having auxiliary communication tube Sep. 10, 2013
8517697 Sealed compressor and refrigeration device Aug. 27, 2013
8469679 Sealed type rotary compressor Jun. 25, 2013
8459964 Noise reducing device for hermetic type compressor Jun. 11, 2013
8435017 Hermetic compressor and refrigeration system May. 7, 2013
8419394 Hermetic compressor including a backflow preventing portion and refrigeration cycle device having the same Apr. 16, 2013
8388318 Hermetic crankcase heater Mar. 5, 2013
8328534 Deformed shell for holding motor stator in a compressor shell Dec. 11, 2012
8303278 Scroll compressor utilizing liquid or vapor injection Nov. 6, 2012
8257061 Hermetic compressor with internal thermal insulation Sep. 4, 2012
8251682 Multi stage rotary expander and refrigeration cycle apparatus with the same Aug. 28, 2012
8210832 Hermetic compressor Jul. 3, 2012
8192174 Refrigerant compressor having a connecting rod with a force application point at crank pin which is displaced in a direction of the bearing in relation to the axial center of the crank pin Jun. 5, 2012
8177529 Reciprocating compressor May. 15, 2012
8152497 Compressor Apr. 10, 2012
8141679 Absorptive muffler suspension Mar. 27, 2012
8113797 Hermetically enclosed refrigerant compressor arrangement Feb. 14, 2012
8105054 Oil return tube aligned over motor protector in scroll compressor Jan. 31, 2012
8011900 Hermetic compressor with a heat dissipation system Sep. 6, 2011
8002528 Compressor assembly having vibration attenuating structure Aug. 23, 2011
7959418 Mounting structure and motor compressor having the same Jun. 14, 2011
7946831 Compressor for refrigerant May. 24, 2011
7946834 Balance shaft module equipped with oil pump May. 24, 2011
7887306 Linear compressor Feb. 15, 2011
7850436 Fixing structure and method for fixing upper cup muffler Dec. 14, 2010
7832994 Hermetic-type compressor Nov. 16, 2010
7806230 Absorptive muffler suspension Oct. 5, 2010
7789202 Orientation and gravity insensitive in-casing oil management system for fluid displacement devices, and methods related thereto Sep. 7, 2010
7780421 Refrigerant compressor Aug. 24, 2010
7762792 Compressor Jul. 27, 2010
7726020 Method of manufacturing a compressor Jun. 1, 2010
7721757 Discharge check valve assembly for use with hermetic scroll compressor May. 25, 2010
7686594 Refrigerant compressor arrangement Mar. 30, 2010
7654804 Fluid displacement apparatus having pressure sensing device Feb. 2, 2010
7651322 Oil balance system and method for compressors connected in series Jan. 26, 2010
7648342 Compressor protection and diagnostic system Jan. 19, 2010
7631729 Reciprocating electric compressor Dec. 15, 2009
7621722 Rotor of compressor Nov. 24, 2009
7618242 Hermetic sealed compressor Nov. 17, 2009
7585160 Hermetic compressor Sep. 8, 2009
7568894 Hermetic compressor Aug. 4, 2009
7540718 Hermetic compressor Jun. 2, 2009
7540723 Reciprocating compressor Jun. 2, 2009
7537438 Reciprocating compressor May. 26, 2009

1 2 3 4 5 6 7 8 9










 
 
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