Gas pressure driven fluid pump having an electronic cycle...

Details Gas pressure driven fluid pump having an electronic cycle... Gas pressure driven fluid pump having an electronic cycle...

2006-02-28

2006-02-28

Freay, Charles G. (Department: 3746)

Pumps

With signal, indicator, or inspection means

C417S133000, C417S137000

Reexamination Certificate

active

07004728

ABSTRACT:
A gas pressure driven fluid pump having an electronic cycle counter. The pump has a pump tank with a liquid inlet and a liquid outlet. A switching mechanism is operative within the pump tank for switching to exhaust porting when the fluid level within the pump tank falls to a low level position and switching to motive porting when the fluid level within the pump tank rises to a high level position. An electrical counter circuit is operatively connected to the pump tank for incrementing a stored count in response to the fluid level within the pump tank rising to a predetermined level.

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International Search Report in relation to Applicant's corresponding PCT application serial No. PCT/US2005/011571 filed Apr. 4, 2005.

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