Pumps – Processes
Patent
1995-06-28
1996-08-06
Gluck, Richard E.
Pumps
Processes
417322, 4174132, F04B 4304
Patent
active
055428215
ABSTRACT:
A plate-type diaphragm pump is composed of an inlet valve member containing two inlet plate structures, an outlet valve member containing two outlet plate structures, and a diaphragm member preferably containing one or two plates, the plate structures being plates or plate sections. A first inlet plate structure has a first inlet channel section and a first valve-seat, a second inlet plate structure has a second inlet channel section and an inlet flexible element, a first outlet plate structure has a first outlet channel section and a second valve-seat, and a second outlet plate structure has a second outlet channel section and an outlet flexible element. The inlet and outlet flexible elements, respectively disposed between the inlet channel sections and the outlet channel sections, have free ends disposed for movement onto and off of the respective first and second valve-seats to respectively prevent or permit fluid flow between the respective inlet and outlet channel sections. The diaphragm member has a deflectable portion disposed for movement toward and away from a diaphragm-seat situated between the diaphragm member and the inlet and outlet channels to respectively prevent or permit fluid flow between the inlet and outlet channels. Movement of the free ends of the flexible elements and the deflectable portion of the diaphragm member may be magnetic-, pressure-, or temperature-induced.
REFERENCES:
patent: 4353243 (1982-10-01), Martin
patent: 4828219 (1989-05-01), Ohmi et al.
patent: 4869282 (1989-09-01), Sittler et al.
patent: 4895500 (1990-01-01), Hok et al.
patent: 5029805 (1991-07-01), Albarda et al.
patent: 5065978 (1991-11-01), Albarda et al.
patent: 5083742 (1992-01-01), Wylie et al.
patent: 5171132 (1992-12-01), Miyazaki et al.
patent: 5176358 (1993-01-01), Bonne et al.
BASF Corporation
Gluck Richard E.
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