Pressure pump having jaws and end-slots

Details Pressure pump having jaws and end-slots Pressure pump having jaws and end-slots

1985-06-27

1986-12-23

Vrablik, John J.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

604153, F04B 4312, A61M 100, A61M 2500

Patent

active

046310070

ABSTRACT:
A pressure pump for fluids having a pressure member 12, 12a of generally circular periphery, means 14, 14a for moving the pressure member in an orbital motion about an axis of rotation, and a sleeve member 16, 16a made of a pair of hinged jaws 22, 22a positionable about the pressure member and spaced for receiving and retaining flexible tubing 18, 18a in an annular space between the pressure member and the sleeve member with the tubing surrounding the pressure member for pumping of fluids through the tubing. In accordance with this invention the jaws define end surfaces which abut together in the closed position having slots 34, 34a defined through the end surfaces communicating between the annular space and the outside to receive lengths of the flexible tubing occupying the annular space and extending into and out of the annular space through the slots.

REFERENCES:
patent: 2899904 (1959-08-01), Becher
patent: 4211519 (1980-07-01), Hogan
patent: 4416595 (1983-11-01), Cromie

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