Pumps – Motor driven – Fluid motor
Patent
1995-11-03
1997-09-09
Gluck, Richard E.
Pumps
Motor driven
Fluid motor
91347, F04B 4306
Patent
active
056649401
ABSTRACT:
A gas driven pump has a housing, first and second cylinders disposed within the housing, and first and second interconnected pistons having product intake and product exhaust positions disposed within the first and second cylinders, respectively. A slide valve has first and second positions for alternately pressurizing one of the first and second cylinders and venting the other of the first and second cylinders. A linkage moves the slide valve between the first and second positions thereof in response to movement of the first and second pistons. Over-center construction of the linkage prevents stalling of the slide valve, so as to assure reliable operation of the gas driven pump. The slide valve comprises a slide for placing an inlet port in fluid communication with an alternating one of two pressure/vent ports such that the slide valve scrapes frost build up from the pressure/vent ports as it moves thereover, thereby further enhancing reliability of the gas driven pump.
REFERENCES:
patent: 1881344 (1932-10-01), Apple
patent: 2452933 (1948-11-01), Joppich et al.
patent: 2485408 (1949-10-01), Pezzillo
patent: 2535695 (1950-12-01), Pezzillo
patent: 2671462 (1954-03-01), Grier
patent: 2761078 (1956-08-01), McAdam
patent: 2873684 (1959-02-01), Kaeding
patent: 2920575 (1960-01-01), White et al.
patent: 2981182 (1961-04-01), Dietrich
patent: 2993449 (1961-07-01), Harland
patent: 3207070 (1965-09-01), Klingler et al.
patent: 3268271 (1966-08-01), Yackle
patent: 3699846 (1972-10-01), Stomper
patent: 3719436 (1973-03-01), McFarlin
patent: 3753629 (1973-08-01), Jackson
patent: 3782863 (1974-01-01), Rupp
patent: 3808814 (1974-05-01), Macy, II
patent: 3813191 (1974-05-01), Foster
patent: 4436493 (1984-03-01), Credle
patent: 4540349 (1985-09-01), Du
patent: 4551076 (1985-11-01), DuBois
patent: 4681518 (1987-07-01), Credle, Jr.
patent: 4736873 (1988-04-01), Patriquin
patent: 4828465 (1989-05-01), Credle, Jr.
patent: 4923168 (1990-05-01), Murata et al.
patent: 5002469 (1991-03-01), Murata et al.
patent: 5470209 (1995-11-01), Hantley et al.
Flojet Corporation
Gluck Richard E.
LandOfFree
Gas driven pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas driven pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas driven pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-65231