Flow control device

Valves and valve actuation – Tube compressors – Roller tube contacting element

Patent

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Details

24115L, F16K 706

Patent

active

042381088

ABSTRACT:
An improved flow control device for regulating the flow of fluid through flexible tubing wherein the flow control device utilizes a rotatable member with trunnions positioned to be captively guided and rotated along guide surfaces. The rotatable member is easily inserted into the clamp body yet once it is placed therein it is difficult to remove without excessive force. The clamp body affords a rigid structure with the opposing walls being fixed at their ends yet are flexible enough to afford entry of the rotatable member into the clamp body for placement of the trunnions in the guide surfaces. In one embodiment, a ramp means is provided through an infeed section wherein the ridge portions forming the ramp merge with the guide surfaces so that when the trunnions of the roller move up the ramp and onto the guide surfaces, an outward flexing of the clamp wall is effected with a retention of the trunnions on the guide surfaces. In another embodiment, the walls defining an open slot at the top of the clamp body are weakened such as by beveling so as to permit the trunnions of the roller to enter into the clamp cavity and be retained on the guide means.

REFERENCES:
patent: 3099429 (1963-07-01), Broman
patent: 3135259 (1964-06-01), Evans
patent: 3189038 (1965-06-01), Von Pechmann
patent: 3685787 (1972-08-01), Adelberg
patent: 3802463 (1974-04-01), Dabney
patent: 3893468 (1975-07-01), McPhee
patent: 3918675 (1975-11-01), Forberg

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