Deformable tube material dispenser

Details Deformable tube material dispenser Deformable tube material dispenser

1975-04-14

1976-09-28

Knowles, Allen N.

Valves and valve actuation

Tube compressors

Perpendicularly reciprocating tube contacting element

222 43, 222 46, 222504, 222511, F16K 706

Patent

active

039827240

ABSTRACT:
A material dispenser using a deformable tube through which the flow of material is controlled is described. The deformable tube is selectively mounted to expose a pinch region to a pressure element having a predetermined shape. The deformable tube is selectively supported to enable precise control over tube constriction for accurate material flow control. A micrometer stop is conveniently mounted to regulate the size of the tube restriction. Automatic and repeated actuation of the dispenser is obtained by locating the pressure element as a piston in a cylinder. Various deformable tube embodiments are described to reduce tube wall stresses for longer operating life and enable both positive closure and opening of the deformable tube.

REFERENCES:
patent: 2305840 (1942-12-01), Brown et al.
patent: 2786608 (1957-03-01), Brown
patent: 3012701 (1961-12-01), Weber
patent: 3075551 (1963-01-01), Smith et al.
patent: 3134508 (1964-05-01), Bayer et al.
patent: 3236419 (1966-02-01), Remer et al.
patent: 3292824 (1966-12-01), Arp et al.
patent: 3461805 (1969-08-01), Karkow

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