Pumping system with clutch and associated by-pass

Details Pumping system with clutch and associated by-pass Pumping system with clutch and associated by-pass

2006-04-25

2006-04-25

Freay, Charles G. (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Disconnectable drive element

C417S270000, C417S319000, C417S440000, C417S490000

Reexamination Certificate

active

07033143

ABSTRACT:
This invention relates to a pumping system. The design of the system is such that bi-directional operation can be achieved using a significantly smaller and hence lighter unit than those currently available. It uses the direction of rotation of the drive shaft to control the opening and closure of the by-pass means for controllably returning the fluid to the first reservoir.

REFERENCES:
patent: 6179574 (2001-01-01), Yie
patent: 924674 (1963-05-01), None
patent: WO 99/01338 (1999-01-01), None

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