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

1975-12-24

1977-03-22

Schwadron, Martin P.

Valves and valve actuation

Tube compressors

Roller tube contacting element

251 7, F16K 706

Patent

active

040132633

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 having a variable cross-sectional area channel extending therealong. This surface is parallel to the travel path of the wheel, and thus there is a constant separation distance between these two elements for all wheel positions. Flow rate through the tubing is changed by longitudinal adjustment of the position of the roller wheel, the ratio of the portion of the tubing which is clamped between the wheel and the surface to that which is not clamped and over the channel, thereby being varied. A plurality of ridge elements are formed in the surface and act to locally pinch or grip the tubing at discrete intervals, thereby substantially lessening creep of the plastic tubing which, in turn, minimizes the flow rate change once the clamp has been set for the desired rate of flow.

REFERENCES:
patent: 3477686 (1969-11-01), Engelsher et al.
patent: 3685787 (1972-08-01), Adelberg

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