Hose pump with friction drive of hollow, resilient roller means

Details Hose pump with friction drive of hollow, resilient roller means Hose pump with friction drive of hollow, resilient roller means

1977-01-31

1978-09-12

Croyle, Carlton R.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

F04B 4308, F04B 4312, F04B 4506

Patent

active

041134095

ABSTRACT:
A hose pump comprising a housing having a cylindrical rolling surface then and an annular groove which extends in the center of the rolling surface and is adapted to receive an elastic hose therein. A cylindrical drive member is arranged concentric with respect to the rolling surface and is connected to the housing through a fixed bearing. Pinch rollers are provided which roll along planetary-gearlike on the rolling surface and on a hose in the groove and are driven by the drive member sun-gearlike through frictional resistance. The pinch rollers are constructed as resilient and hollow cylinders.

REFERENCES:
patent: 2899904 (1959-08-01), Becher
patent: 3216362 (1965-11-01), Hewko
patent: 3358609 (1967-12-01), Worth et al.
patent: 3366071 (1968-01-01), Dutler
patent: 3816035 (1974-06-01), Malbec

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