Flow control means for use in an adaptor assembly

Fluid handling – Line condition change responsive valves – Direct response valves

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Details

137550, 13753311, 285342, 285353, F16K 1504

Patent

active

042816793

ABSTRACT:
An adaptor assembly for connecting a tubing with either a male or female fitting is disclosed. Flow control means within the adaptor assembly comprise an important feature of the disclosed and preferred embodiment wherein the flow control means comprises a filter. The filter is a disk of filtrant material such as a nonwoven fiber formed into a pad of specified thickness and cut in a circle. It is placed adjacent to a shoulder in the adaptor and is supported by a surrounding ring.
An alternate embodiment which is one of the preferred embodiments hereof includes a check valve serving as the flow control means. The check valve is constructed with a circular valve seat having a chamfered shoulder, a spherical valve element which closes against the seat to block flow, a surrounding sleeve which permits the check valve element to move toward and away from the chamfered seat and a transversely extending disk to block the passage. The disk blocks the valve element from escape. The disk is perforated with a number of holes which, in the aggregate, provide a suitable cross-sectional flow area through the adaptor.

REFERENCES:
patent: 1652765 (1927-12-01), Cowles
patent: 1665346 (1928-04-01), Clarke
patent: 1726804 (1929-09-01), Byers
patent: 1764186 (1930-06-01), Teesdale
patent: 1797277 (1931-03-01), Thomas
patent: 1883273 (1932-10-01), Zerk
patent: 1993732 (1935-03-01), Bijur
patent: 3367362 (1968-02-01), Hoffman
patent: 4173363 (1979-11-01), Stearns

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