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Class Information
Number: 417/510
Name: Pumps > Expansible chamber type > Mechanically actuated distributor
Description: Apparatus in which the means for controlling flow of pump fluid into or out of the pump chamber comprises a distributor which is interconnected with or adapted to be abutted by the pumping member or a drive transmission element associated therewith in a manner which causes said distributor to be mechanically shifted upon movement of the pumping member or transmission element through a pumping operation cycle.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7559753 |
Double disc pump with fixed housing block |
Jul. 14, 2009 |
| 7381035 |
Piston pump with check shaft |
Jun. 3, 2008 |
| 7097569 |
Restorable sand or pellet pile device |
Aug. 29, 2006 |
| 6971861 |
High speed unloader for gas compressor |
Dec. 6, 2005 |
| 6808086 |
Paste ejection apparatus |
Oct. 26, 2004 |
| 6733254 |
Air pumping/extracting duplex pump |
May. 11, 2004 |
| 6669453 |
Pump assembly useful in internal combustion engines |
Dec. 30, 2003 |
| 6666656 |
Compressor apparatus |
Dec. 23, 2003 |
| 6634871 |
Suction-discharge device for fluids comprising a piston within a rotating inner tube and a plurality of suction and discharge holes |
Oct. 21, 2003 |
| 6585495 |
Reversible volume oil impeller pump with mechanical governor |
Jul. 1, 2003 |
| 6579079 |
Rotary valve and piston pump assembly and tank dispenser therefor |
Jun. 17, 2003 |
| 6443717 |
Variable timing valves for gas compressors and expanders |
Sep. 3, 2002 |
| 6415956 |
Hand holdable pump spray apparatus |
Jul. 9, 2002 |
| 6318644 |
Fluid transfer pump wash-out apparatus and method |
Nov. 20, 2001 |
| 6315532 |
Dual disc pump |
Nov. 13, 2001 |
| 6170706 |
Hand holdable pump spray system |
Jan. 9, 2001 |
| 6168398 |
Piston pump having lifting valves with a convex surface |
Jan. 2, 2001 |
| 6082978 |
Valve device in a piston compressor |
Jul. 4, 2000 |
| 6062826 |
Pulsating vibration air generation means |
May. 16, 2000 |
| 5951265 |
Fluid driven reciprocating engine or pump having overcenter, snap-action mechanical valve control |
Sep. 14, 1999 |
| 5931648 |
Vacuum actuated tubular blood pumping device with active values and application of the same |
Aug. 3, 1999 |
| 5902094 |
Flow control valve for a pressure washer |
May. 11, 1999 |
| 5718569 |
Dual plunger cassette pump |
Feb. 17, 1998 |
| 5683234 |
Hand pump apparatus having two pumping strokes and having an attachment member for engaging with different tire valves |
Nov. 4, 1997 |
| 5558504 |
Magnetostrictive pump for applying pastes and adhesives |
Sep. 24, 1996 |
| 5542452 |
Valve assembly |
Aug. 6, 1996 |
| 5385456 |
Pump for hot chamber die casting of corrosive light alloys |
Jan. 31, 1995 |
| 5292236 |
Positive displacement pump with pivot piston valve |
Mar. 8, 1994 |
| 5252044 |
Parenteral fluid pump with disposable cassette |
Oct. 12, 1993 |
| 5203857 |
Gas compressor head and discharge valve construction |
Apr. 20, 1993 |
| 5009579 |
Fluid pump encasement |
Apr. 23, 1991 |
| 4850817 |
Mechanical drive system for a medication infusion system |
Jul. 25, 1989 |
| 4840205 |
Method and apparatus for dispensing liquids |
Jun. 20, 1989 |
| 4818186 |
Drive mechanism for disposable fluid infusion pumping cassette |
Apr. 4, 1989 |
| 4776775 |
Chemical injector pump |
Oct. 11, 1988 |
| 4735048 |
Hydraulic tool |
Apr. 5, 1988 |
| 4722675 |
Piston proportioning pump |
Feb. 2, 1988 |
| 4690310 |
Sleeve pump |
Sep. 1, 1987 |
| 4629400 |
Hydraulic pump with pistons and controlled suction valves |
Dec. 16, 1986 |
| 4620836 |
Oil pump with oscillating piston |
Nov. 4, 1986 |
| 4559038 |
Drug delivery system |
Dec. 17, 1985 |
| 4529106 |
Metering and/or feeding unit for fluid materials |
Jul. 16, 1985 |
| 4486152 |
Pump with spring loaded valve |
Dec. 4, 1984 |
| 4479760 |
Actuator apparatus for a prepackaged fluid processing module having pump and valve elements operable in response to applied pressures |
Oct. 30, 1984 |
| 4479761 |
Actuator apparatus for a prepackaged fluid processing module having pump and valve elements operable in response to externally applied pressures |
Oct. 30, 1984 |
| 4479797 |
Medication infusion device |
Oct. 30, 1984 |
| 4464099 |
Fuel injection pumping apparatus |
Aug. 7, 1984 |
| 4453931 |
Intravenous metering device |
Jun. 12, 1984 |
| 4382753 |
Nonpulsating IV pump and disposable pump chamber |
May. 10, 1983 |
| 4359205 |
Hydraulically operated lifting apparatus and pump therefor |
Nov. 16, 1982 |
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