Peristaltic diaphragm pump with conically shaped nutating member

Details Peristaltic diaphragm pump with conically shaped nutating member Peristaltic diaphragm pump with conically shaped nutating member

1986-12-08

1987-07-07

Croyle, Carlton R.

Rotary expansible chamber devices

Collapsible progressively deformed working chamber wall

418153, F01C 500

Patent

active

046784144

ABSTRACT:
A peristaltic diaphragm pump comprises a drive shaft, two nutating members having inner surfaces and a flexible tubular member wound at least 360.degree. around the axis of rotation defined by the drive shaft such that the nutating members nutate to peristaltically compress the tubular member between the inner surfaces and to provide a continuous linear sealing as the drive shaft is rotated. Each of the inner surfaces is shaped like a truncated cone with the slope in the radial direction linearly changing around its axis and a shaft therethrough is affixed obliquely so as to wobble with respect to the drive shaft.

REFERENCES:
patent: 2249806 (1941-07-01), Bogoslowsky
patent: 3058428 (1962-10-01), Gemeinhardt
patent: 4371321 (1983-02-01), Koblo et al.

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