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Class Information
Number: 417/536
Name: Pumps > Expansible chamber type > Plural pumping chambers > Chambers formed at opposite ends of rectilinearly moving pumping member > All discharge distributors positioned laterally of pumping member path > Inlet and discharge distributors positioned laterally of pumping member path
Description: Apparatus in which the inlet and discharge valves for the several chambers are located at a position radially spaced from the path of movement of the pumping member.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7074020 |
Sanitary pump and sanitary valve |
Jul. 11, 2006 |
| 6874999 |
Micropumps with passive check valves |
Apr. 5, 2005 |
| 6641232 |
Piston pump for brake system with piston pump |
Nov. 4, 2003 |
| 6607366 |
Variable clearance system for reciprocating compressors |
Aug. 19, 2003 |
| 6499968 |
Integral pump and control valve |
Dec. 31, 2002 |
| 6497560 |
High volume low pressure air pump |
Dec. 24, 2002 |
| 6422832 |
Air pump capable of inflating and deflating an inflatable object interchangeably |
Jul. 23, 2002 |
| 6318967 |
Gas compression kit and method with interchangeable compression cylinders |
Nov. 20, 2001 |
| 6220833 |
Elimination of inlet valve for ABS pump |
Apr. 24, 2001 |
| 6164376 |
Triple action pumping system and method |
Dec. 26, 2000 |
| 6126419 |
Caustic pumping apparatus |
Oct. 3, 2000 |
| 6079959 |
Reciprocating pump |
Jun. 27, 2000 |
| 6077053 |
Piston type gas compressor |
Jun. 20, 2000 |
| 6068448 |
Pressure hydraulic pump having first and second synchronously driven reciprocating pistons with a pressure control structure |
May. 30, 2000 |
| 6068764 |
Reverse osmosis pump and shut off valve |
May. 30, 2000 |
| 5848878 |
Pump with improved manifold |
Dec. 15, 1998 |
| 5833925 |
Automatic chemistry analyzer with improved ion selective electrode assembly |
Nov. 10, 1998 |
| 5649809 |
Crankshaft and piston rod connection for a double diaphragm pump |
Jul. 22, 1997 |
| 5622486 |
Radially-valve compressor with adjustable clearance |
Apr. 22, 1997 |
| 5403168 |
Double acting pump having inlet and outlet poppet valves |
Apr. 4, 1995 |
| 5368454 |
Quiet check valve |
Nov. 29, 1994 |
| 5364244 |
Pump arrangement including flag type inlet valves with spherical seating |
Nov. 15, 1994 |
| 5217324 |
Dynamic breakwater and pumping system |
Jun. 8, 1993 |
| 5156537 |
Multiphase fluid mass transfer pump |
Oct. 20, 1992 |
| 5154586 |
Multi-channel linear concentrate pump |
Oct. 13, 1992 |
| 5118265 |
Liquid pump assembly |
Jun. 2, 1992 |
| 5076769 |
Double acting pump |
Dec. 31, 1991 |
| 4970861 |
Geared rotary-to-linear motion converting system for bidirectional pump drive |
Nov. 20, 1990 |
| 4960369 |
Rotatably driven positive displacement pump |
Oct. 2, 1990 |
| 4936753 |
Diaphragm pump with interchangeable valves and manifolds |
Jun. 26, 1990 |
| 4895494 |
Interchangeable manifolds for diaphragm pumps |
Jan. 23, 1990 |
| 4838860 |
Infusion pump |
Jun. 13, 1989 |
| 4824335 |
Modular high pressure pump |
Apr. 25, 1989 |
| 4661050 |
High pressure gas transmission compressor |
Apr. 28, 1987 |
| 4615259 |
Reciprocating gas compressor |
Oct. 7, 1986 |
| 4569643 |
Compact diaphragm pump for artesian bores |
Feb. 11, 1986 |
| 4480969 |
Fluid operated double acting diaphragm pump housing and method |
Nov. 6, 1984 |
| 4449827 |
Mixing device |
May. 22, 1984 |
| 4334839 |
Hand operated, dual chambered, pneumatic pump |
Jun. 15, 1982 |
| 4247264 |
Air driven diaphragm pump |
Jan. 27, 1981 |
| 4242061 |
Double diaphragm pump |
Dec. 30, 1980 |
| 4242062 |
Dual piston pump with pressure seal lubrication feature |
Dec. 30, 1980 |
| 4120617 |
Pump device for supplying fuel to a combustion engine |
Oct. 17, 1978 |
| 4093404 |
Apparatus for preparation of matrices containing frangible particulate matter |
Jun. 6, 1978 |
| 3990816 |
Double acting piston pump for cryogenic medium |
Nov. 9, 1976 |
| 3934456 |
Solvent gradient generator for chromatography systems |
Jan. 27, 1976 |
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