Check valve

Details Check valve Check valve

1974-09-18

1976-02-10

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

251337, F16K 1506

Patent

active

039372499

ABSTRACT:
A check valve for fluid flow lines and for pump discharge lines in which the components are arranged to assist in the prevention of sand and foreign material holding the check valve element open, in which the assembly and disassembly of the several components is performed from one end of the housing which receives the check valve, and in which support means are employed on both sides of the check valve, with one of the support means acting to prevent check valve spin but free to accommodate lateral displacement of the check valve and the other support means having a minimum area to prohibit sand and abrasive material lodging in or adjacent the area relied upon to support the movement of the check valve.

REFERENCES:
patent: 731218 (1903-06-01), Perkins
patent: 1860004 (1932-05-01), Yardley
patent: 2233649 (1941-03-01), Stahl et al.
patent: 2594641 (1952-04-01), Griffith et al.
patent: 2949928 (1960-08-01), Hobson
patent: 3662761 (1972-05-01), Hoffman
patent: 3695577 (1972-10-01), Jespersen
patent: 3756273 (1973-09-01), Hengesbach

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