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Class Information
Number: 417/569
Name: Pumps > Expansible chamber type > Having pumping chamber pressure responsive distributor > Distributor positioned opposite pumping member end face
Description: Apparatus in which the inlet or discharge valve is positioned in a fixed wall of the working chamber which is opposite the end face of the pumping member when in operative position in the pumping chamber.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7413421 |
Multi-cylinder reciprocating compressor |
Aug. 19, 2008 |
| 7390177 |
Piston compressor, particularly a hermetic refrigerant compressor |
Jun. 24, 2008 |
| 7390176 |
Multi-port suction reed valve with optimized tips |
Jun. 24, 2008 |
| 7390174 |
Piston pump |
Jun. 24, 2008 |
| 7390178 |
Compressor |
Jun. 24, 2008 |
| 7364413 |
Reciprocating compressor with enlarged valve seat area |
Apr. 29, 2008 |
| 7281911 |
Linear compressor |
Oct. 16, 2007 |
| 7278838 |
Inlet check valve with removable seat |
Oct. 9, 2007 |
| 7237474 |
Reciprocating pump |
Jul. 3, 2007 |
| 7232293 |
Manual hydraulic pump |
Jun. 19, 2007 |
| 7232294 |
Compressor having a discharge valve mechanism including a valve retainer having a specially-designed curved surface |
Jun. 19, 2007 |
| 7179065 |
Linear compressor |
Feb. 20, 2007 |
| 7059344 |
Discharge valve mechanism for variable displacement compressor |
Jun. 13, 2006 |
| 7048521 |
High pressure fuel supply pump with an intake valve member and a discharge valve member aligned along a plunger axis |
May. 23, 2006 |
| 7033150 |
Hermetic type compressor |
Apr. 25, 2006 |
| 7014433 |
Shaped valve seats in displacement compressors |
Mar. 21, 2006 |
| 7004734 |
Reciprocating refrigerant compressor |
Feb. 28, 2006 |
| 7001156 |
Structure of an air inflation device |
Feb. 21, 2006 |
| 6979184 |
Manual negative pressure pump device |
Dec. 27, 2005 |
| 6966760 |
Reciprocating fluid pump employing reversing polarity motor |
Nov. 22, 2005 |
| 6955531 |
Pump for inflating and deflating an inflatable object with a rotatable nozzle assembly |
Oct. 18, 2005 |
| 6953051 |
Valve plate structure |
Oct. 11, 2005 |
| 6948920 |
Toilet bowl and tank drainage device |
Sep. 27, 2005 |
| 6942472 |
Head pressure relief assembly |
Sep. 13, 2005 |
| 6932115 |
Valve apparatus for hermetic compressor |
Aug. 23, 2005 |
| 6929456 |
Valve assembly for reciprocating compressors |
Aug. 16, 2005 |
| 6921254 |
Pump |
Jul. 26, 2005 |
| 6896495 |
Cylinder head and valve plate assembly for reciprocating compressor |
May. 24, 2005 |
| 6893233 |
Noise reducing cylinder assembly for compressor |
May. 17, 2005 |
| 6866489 |
Piston pump |
Mar. 15, 2005 |
| 6851939 |
System for chemical vapor deposition at ambient temperature using electron cyclotron resonance and method for depositing metal composite film using the same |
Feb. 8, 2005 |
| 6843645 |
Cooling system for a magnetic pump |
Jan. 18, 2005 |
| 6837694 |
Hydraulic pump unit with orifice plate for vehicle brake control system |
Jan. 4, 2005 |
| 6837695 |
Inlet port for a reciprocating compressor |
Jan. 4, 2005 |
| 6835053 |
Check valve |
Dec. 28, 2004 |
| 6827561 |
Cylinder assembly and hermetic compressor having the same |
Dec. 7, 2004 |
| 6823891 |
Compressor suction reed valve |
Nov. 30, 2004 |
| 6820644 |
Delivery valve device for refrigerant fluid compressor |
Nov. 23, 2004 |
| 6821096 |
Multiple component metering and dispensing system |
Nov. 23, 2004 |
| 6796331 |
Delivery valve device for a fluid compressor |
Sep. 28, 2004 |
| 6767195 |
Valve for hermetic compressor |
Jul. 27, 2004 |
| 6739842 |
Pump |
May. 25, 2004 |
| 6712591 |
Discharge valve of a hermetic compressor using stopper and weight driven disc valve |
Mar. 30, 2004 |
| 6655935 |
Gas compressor comprising a double acting piston, an elongate chamber, multiple inlets mounted within heads on both sides of the chamber, and one central outlet |
Dec. 2, 2003 |
| 6638039 |
Device for removing water from a pipe |
Oct. 28, 2003 |
| 6634868 |
Compressor |
Oct. 21, 2003 |
| 6579075 |
Compressor |
Jun. 17, 2003 |
| 6575718 |
High pressure fuel supply apparatus |
Jun. 10, 2003 |
| 6568927 |
Piston pump for high-pressure fuel generation |
May. 27, 2003 |
| 6565336 |
Normally unseated suction valve |
May. 20, 2003 |
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