Automatic liquid pump with vapor flow prevention flow outlet val

Details Automatic liquid pump with vapor flow prevention flow outlet val Automatic liquid pump with vapor flow prevention flow outlet val

1993-06-25

1994-11-22

Bertsch, Richard A.

Pumps

One fluid pumped by contact or entrainment with another

Liquid pumped by supplying or exhausting gaseous motive...

417135, 137399, F04F 106, F04B 2102

Patent

active

053663497

ABSTRACT:
An automatic liquid pump contained within a sealed pressure vessel. The pressure vessel includes a liquid inlet opening, a liquid outlet opening, a gas inlet and a gas outlet. A preloaded float-operated over-center valve mechanism closes the gas inlet valve and opens the gas outlet valve to permit vapor to vent through the gas outlet valve. The over-center valve mechanism alternately closes the gas outlet valve and opens the gas inlet valve to admit compressed gas into the sealed vessel to evacuate the liquid within the sealed vessel through the liquid outlet opening. A float valve is coupled to the liquid outlet opening for closing the liquid outlet opening when the liquid in the vessel drops below a first predetermined level. As a result, vapors are prevented from escaping through the liquid outlet opening under all operating conditions.

REFERENCES:
patent: 1767452 (1930-06-01), Hewitt
patent: 2702045 (1955-02-01), Graefe
patent: 2832370 (1958-04-01), Hill
patent: 4025236 (1977-05-01), Fujiwara
patent: 4192341 (1980-03-01), Hilmer
patent: 4545397 (1985-10-01), Yumoto
patent: 4757837 (1988-07-01), Provost et al.
patent: 5141405 (1992-08-01), Francart, Jr.
Copy of four-page brochure describing and showing the specifications of Gestra Pump FPS 14 (four different installations), made public Jan. 1993.

Affiliated with

Also associated with

Rating

Automatic liquid pump with vapor flow prevention flow outlet val does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic liquid pump with vapor flow prevention flow outlet val, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic liquid pump with vapor flow prevention flow outlet val will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1987556