Clamp for regulating fluid flow through plastic tubing

Details Clamp for regulating fluid flow through plastic tubing Clamp for regulating fluid flow through plastic tubing

1989-03-02

1991-05-14

Rivell, John

Valves and valve actuation

Tube compressors

Roller tube contacting element

F16K 706

Patent

active

050149628

ABSTRACT:
Tubing through which fluid flow is to be regulated is placed in a regulating clamp wherein it is clamped between a roller wheel and a surface which is substantially parallel to the travel of the wheel. The surface has a variable cross-sectional area channel extending within or therealong. Flow rate through the tubing is changed by longitudinal adjustment of the position of the roller wheel, the ratio between the portion of the tubing which is clamped shut to that which is exposed to the channel, and consequently not being clamped, thereby being varied. A plurality of raised elements are formed in the surface and act to locally pinch or grip the tubing at discrete intervals thereby both improving the grip and lessening the creep of the tubing. The raised element which is most remote from the channel is substantially higher than the raised element closer to the channel to provide a more constant flow rate especially with thicker and harder walled tubing.

REFERENCES:
patent: 3477686 (1969-11-01), Engelsher et al.
patent: 3685787 (1972-08-01), Adelberg
patent: 3893468 (1975-07-01), McPhee
patent: 3918675 (1975-11-01), Forberg
patent: 4013263 (1977-03-01), Adelberg
patent: 4047694 (1977-09-01), Adelberg
patent: 4340201 (1982-07-01), Becker, Jr.
patent: 4475709 (1984-10-01), Becker, Jr.
patent: 4725037 (1988-02-01), Adelberg

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