Ferromagnetic-fluid pump for pumping biological liquid

Details Ferromagnetic-fluid pump for pumping biological liquid Ferromagnetic-fluid pump for pumping biological liquid

1987-11-19

1989-09-26

Apley, Richard J.

Pumps

Motor driven

Electric or magnetic motor

623 3, F04B 4300

Patent

active

048696560

ABSTRACT:
A ferromagnetic-fluid pump includes a hollow body having a substantially rigid structure and an internal diaphragm dividing said body in two cavities. Each cavity has an inlet and an outlet opening provided with one-way valve. One edge of said diaphragm is hinged on the body structure while its opposite edge is spaced from the adjacent inner surface of said body. Said cavities are partially filled with a ferromagnetic fluid which seals said diaphragm in respect of the inner surface of said body. At least one electric winding is provided onto both sides of said diaphragm and onto the two inner surfaces of said body facing said diaphragm. Said windings are operative to generate a variable magnetic fluid so that said diaphragm oscillates.

REFERENCES:
patent: 3511583 (1970-05-01), Brown
patent: 3633217 (1972-01-01), Lance
patent: 3720485 (1973-03-01), Hulman
patent: 3733616 (1973-05-01), Willis
patent: 3768931 (1973-10-01), Willis
patent: 3874002 (1975-04-01), Kurpanek
patent: 4058857 (1977-11-01), Runge
patent: 4063826 (1977-12-01), Riepe
patent: 4375941 (1983-03-01), Child
patent: 4650485 (1987-03-01), Della Sala

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