Apparatus for metering fluids

Details Apparatus for metering fluids Apparatus for metering fluids

1978-06-22

1981-06-09

Schwadron, Martin P.

Valves and valve actuation

Tube compressors

Roller tube contacting element

251 9, F16K 706

Patent

active

042720516

ABSTRACT:
A clamp for providing a stable fluid flow rate through a flexible tubing has a channel having a bottom wall including an anvil for supporting the tubing and an opening along its entire length for readily receiving and supporting the tubing against the bottom wall and the anvil. The channel also includes a pair of slots adapted for receiving and retaining a tube-constricting means. The constricting means comprises a rotatable cam having a groove of varying depth along its surface which coacts with the anvil to define a reduced-flow passageway in the tubing. As the cam is rotated from an opened position, corresponding to a maximum fluid flow rate through the tubing, to a closed position, the groove presents to the tubing a plurality of similar triangles progressively reduced in size to reduce the flow passageway in the tubing.

REFERENCES:
patent: 3215394 (1965-11-01), Sherman
patent: 3625472 (1971-12-01), Rychlik
patent: 3685787 (1972-08-01), Adelberg
patent: 3893468 (1975-07-01), McPhee
patent: 4034773 (1977-07-01), Huggins

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