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Class Information
Number: 417/462
Name: Pumps > Expansible chamber type > Moving cylinder > Unidirectionally rotating cylinder
Description: Apparatus in which the cylinder is mounted on a fixed supporting structure for movement relative thereto, during operation of the pump, in a circular path of more than 360° in a single direction about an axis other than the longitudinal axis of the cylinder (i.e., other than the axis of reciprocation of a piston therein), said cylinder and the piston therein being mechanically interconnected in a manner which causes reciprocation of the piston relative to said cylinder upon rotation thereof.










Sub-classes under this class:

Class Number Class Name Patents
417/463 Having second cylinder unitary with piston of first 6


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8523536 Axial piston pump, and power transmission device with axial piston pump Sep. 3, 2013
7753664 Rotary pump Jul. 13, 2010
7544051 Cam-driven fluid pump Jun. 9, 2009
7029241 Circumferential piston compressor/pump/engine (CPC/CPP/CPE); circumferential piston machines Apr. 18, 2006
6929064 Downhole pump Aug. 16, 2005
6805538 Fuel tank mounted, motorized high pressure gasoline pump Oct. 19, 2004
6733256 Device for producing consumables May. 11, 2004
6692237 Rotary piston cylinder device with radially extending cylinder chambers intersecting at a rotary axis Feb. 17, 2004
6672848 Cruciform pump Jan. 6, 2004
6637383 Pivoting piston rotary power device Oct. 28, 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
6619243 Pivoting piston rotary power device Sep. 16, 2003
6568923 Fluid suction and discharge apparatus May. 27, 2003
6511304 Radial plunger machine Jan. 28, 2003
6293757 Fluid pump control apparatus and method Sep. 25, 2001
6286485 Distributor arrangement Sep. 11, 2001
6280160 Distributor-type fuel injection pump Aug. 28, 2001
6231319 Hermetic compressor May. 15, 2001
6212994 Positive displacement rotary machine Apr. 10, 2001
6206661 Hermetic compressor Mar. 27, 2001
6183212 Snap-in connection for pumping plunger sliding shoes Feb. 6, 2001
6179583 Metered fluid delivery device Jan. 30, 2001
6058910 Rotary distributor for a high pressure fuel system May. 9, 2000
6027312 Hydraulic pressure supply pump with simultaneous directly actuated plungers Feb. 22, 2000
5947707 Fuel pump with a cam having first and second plunger displacement regions Sep. 7, 1999
5889733 Timer device for distributor type fuel injection apparatus Mar. 30, 1999
5857444 Inner cam system distributor type fuel injector Jan. 12, 1999
5810569 Pump having a variable instantaneous delivery rate Sep. 22, 1998
5782620 Fuel injection pump for internal combustion engines Jul. 21, 1998
5782619 Radial piston distributor fuel injection pump Jul. 21, 1998
5769611 Hydraulic pressure supply pump with multiple sequential plungers Jun. 23, 1998
5700139 Fuel injection pump of the distributor type with a magnetically actuated valve member of a switching valve connected to a low-pressure piston Dec. 23, 1997
5681153 Two rotor sliding vane compressor Oct. 28, 1997
5680844 Fuel pump Oct. 28, 1997
5666921 Fuel supply apparatus Sep. 16, 1997
5647323 Fuel injection system Jul. 15, 1997
5641274 Two stage fuel injection pump with second stage located in the first stage inlet line Jun. 24, 1997
5639226 Portable, battery operated air pump Jun. 17, 1997
5632191 Piston roller alignment configuration for a radial piston mechanism May. 27, 1997
5619971 Distributor-type fuel injection pump Apr. 15, 1997
5613839 Variable rate pump Mar. 25, 1997
5582090 Radial piston pump with rotary expansible chamber stage Dec. 10, 1996
5580223 Fuel injection pump for internal combustion engines Dec. 3, 1996
5540564 Rotary distributor type fuel injection pump Jul. 30, 1996
5513965 Distributor-type fuel injection pump May. 7, 1996
5503127 Fuel injection pump with auxiliary control system Apr. 2, 1996
5484268 Positive displacement centrifugal pump Jan. 16, 1996
5480293 Rotary distributor fuel injection apparatus Jan. 2, 1996
5478218 Rotating-cylinder compressor Dec. 26, 1995
5462029 Fuel pumping apparatus Oct. 31, 1995

1 2 3 4 5 6










 
 
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