Pump apparatus

Details Pump apparatus Pump apparatus

1991-08-26

1992-07-14

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

417 53, 417321, 417322, F04B 1700

Patent

active

051297949

ABSTRACT:
A pump apparatus comprising an enclosure for holding a volume of fluid; an intake one-way valve for enabling intake of fluid into the enclosure; a discharge one-way valve for enabling discharge of fluid from the enclosure; a diaphragm for cyclically deflectably increasing and decreasing the volume of the enclosure whereby fluid is oscillatingly drawn into the enclosure and discharged therefrom; a heating assembly for selectively oscillatingly applying heat to the diaphragm and terminating application of heat thereto for selectively oscillatingly deflecting the diaphragm.

REFERENCES:
patent: 3606592 (1971-09-01), Madurski et al.
patent: 4411603 (1983-10-01), Kell
patent: 4636149 (1987-01-01), Brown
patent: 4821997 (1989-04-01), Zdeblick
patent: 4824073 (1989-04-01), Zdeblick
patent: 4895500 (1989-01-01), Hok et al.
patent: 4911616 (1990-03-01), Laumann, Jr.
patent: 4938742 (1990-07-01), Smits

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