Tube pump with retractable rollers

Details Tube pump with retractable rollers Tube pump with retractable rollers

1995-05-22

1996-12-24

Korytnyk, Peter

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

F04B 4308

Patent

active

055868738

ABSTRACT:
A tube pump is disclosed for conveying liquid or viscous media, with a pump head on which at least two pump rollers are arranged, which rollers can be brought into engagement in succession with a tube wherein the medium to be conveyed is contained, in such a way that the medium is transported by squeezing the tube tightly. The tube pump according to this invention is distinguished in that the pump rollers can be shifted between two end positions, one of which positions (pumping position) permits the pumping operation and the other position (park position) permits a tube change without manual twisting of the pump head and without displacement of the tube bed.

REFERENCES:
patent: 1848024 (1932-03-01), Owen
patent: 2696173 (1954-12-01), Jensen
patent: 3463092 (1969-08-01), Meyer
patent: 4043712 (1977-08-01), Azzolini
patent: 4142845 (1979-03-01), Lepp et al.
patent: 4548553 (1985-03-01), Ferster
patent: 4568255 (1986-02-01), Lavender et al.
patent: 4720249 (1988-01-01), Krebs et al.

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