Flow restrictor

Details Flow restrictor Flow restrictor

2006-06-27

2006-06-27

Bastianelli, John (Department: 3754)

Valves and valve actuation

Tube compressors

Perpendicularly reciprocating tube contacting element

C137S553000, C251S090000

Reexamination Certificate

active

07066441

ABSTRACT:
A device for controllably restricting flow through a resilient tube including a block and a pair of generally J-shaped leg members pivotally mounted to the block. The leg members, when pivoted together, together provide a tube support surface. The block is formed with a bore in which there is a rotatable internally threaded sleeve. A jaw member having a threaded shaft is threadedly mated to the sleeve and a knob is fixedly secured to the sleeve for rotation therewith. Accordingly, rotation of the knob moves the jaw member toward and away from the tube support surface to provide desired compression to a length of resilient tubing captured between the jaw and the tube support surface. By pivoting the leg members away from each other, space is provided for installation of the flow restriction device at any desired point along the length of the tubing.

REFERENCES:
patent: 2838949 (1958-06-01), Grigsby
patent: 2994337 (1961-08-01), Freeman
patent: 3042067 (1962-07-01), Hidding
patent: 3332439 (1967-07-01), Burke
patent: 3948477 (1976-04-01), Lample
patent: 4257446 (1981-03-01), Ray
patent: 4569502 (1986-02-01), Elliott
patent: 4575041 (1986-03-01), Hu
patent: 4978100 (1990-12-01), Peurifoy
patent: 5197708 (1993-03-01), Campau
patent: 6082702 (2000-07-01), Campau

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