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Class Information
Number: 137/565.31
Name: Fluid handling > Systems > With pump > Plural > Serial > With single motive input

Sub-classes under this class:

Class Number Class Name Patents
137/565.32 One pump driven by motive fluid from the other 4

Patents under this class:

Patent Number Title Of Patent Date Issued
8522913 Transmission for a work machine with attached hydraulic fluid pump Sep. 3, 2013
8485222 Systems and methods for preventing oil migration Jul. 16, 2013
8418760 Sampling system and method Apr. 16, 2013
6854481 Power steering fluid refilling and draining device Feb. 15, 2005
6805538 Fuel tank mounted, motorized high pressure gasoline pump Oct. 19, 2004
6524084 Motor pump unit Feb. 25, 2003
6206036 Recreational water recirculation system with double-shaft pump motor Mar. 27, 2001
5221194 Apparatus for electrostatically isolating and pumping conductive coating materials Jun. 22, 1993
5058557 Apparatus for delivery of fuel from a storage tank to an internal combustion engine of a vehicle Oct. 22, 1991
4848471 Method and apparatus for transporting unprocessed well streams Jul. 18, 1989
4714931 Ink jet printing system Dec. 22, 1987
4658583 Double staged, internal rotary pump with flow control Apr. 21, 1987
4547128 Proportional mixing means Oct. 15, 1985
4097680 Spinning disk electrical isolator for a flowing seawater stream Jun. 27, 1978
4015628 Dilution device Apr. 5, 1977

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