Tube-pump

Details Tube-pump Tube-pump

1997-06-26

2000-02-15

Freay, Charles G.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

417478, 417479, F04B 4308, F04B 4300

Patent

active

06024545&

ABSTRACT:
A tube-pump of the invention comprising; an elastic-tube disposed in a ring-shaped form along the inner surface of a cylindrical chamber, a ring-shaped pressure member driven by an eccentric cam device disposed within said ring-shaped elastic tube which is pressed by the circular motion of said ring-shaped pressure member, and plural supporting means allowing a pressing motion to said elastic tube and preventing continuous rotating motions of said pressing member in a same direction holding said pressure member in said cylindrical chamber by said plural supporting means. By employing this pump construction, elongation of elastic tube and changes of its inner diameter possible by continuous rotations of ring-shaped pressure members into the same direction can be prevented, and at the same time, the pump output capacity can be kept at constant without damaging said elastic tube, remarkably improving the pump durability.

REFERENCES:
patent: 2414355 (1947-01-01), Bogoslowsky
patent: 3687580 (1972-08-01), Griffiths
patent: 4645434 (1987-02-01), Bogen
patent: 4906168 (1990-03-01), Thompson
patent: 4976593 (1990-12-01), Miyamoto
patent: 5215450 (1993-06-01), Tamari

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