Orbiting fluid pump

Details Orbiting fluid pump Orbiting fluid pump

1992-09-08

1995-05-02

Bertsch, Richard A.

Pumps

Motor driven

Including means for facilitating assembly or disassembly of...

417420, F04B 1700

Patent

active

054113784

ABSTRACT:
Pumping action is performed by a unitary, sealed, easily replaceable pumping element, comprising a housing with a longitudinal axis, a pumping chamber at one end of the housing, an outlet in a wall of the pumping chamber, an inlet in the housing, axially spaced from the pumping chamber, and a circulator in the pumping chamber, mounted on a support which is free of the rotating elements, and which provides freedom of motion for the circulator to revolve in an orbital path about the longitudinal axis. Magnetic means external to the housing drive the circulator in its orbital path by magnetic action through the walls of the housing. The orbital circulator contains a magnetic element and is driven in a circular path by an external rotating magnetic field.

REFERENCES:
patent: 2107090 (1938-02-01), Swennes
patent: 2773953 (1956-12-01), Gemeinhardt
patent: 3702938 (1972-11-01), Garnier
patent: 4487557 (1984-12-01), Ruyak et al.
patent: 4772660 (1988-02-01), Akamatsu
patent: 4927337 (1990-05-01), Lustwerk
patent: 5021048 (1991-06-01), Buckholtz
patent: 5044882 (1991-09-01), Akamatsu
patent: 5045026 (1991-09-01), Duse
patent: 5147186 (1992-09-01), Buckholtz
"Vibratory Orbiting Blood Pump (VOBP)", International Workshop On Rotary Blood Pumps, Sep. 9-11, 1991.

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