Check valve

Details Check valve Check valve

1993-09-24

1994-10-11

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

13754319, F16K 1504

Patent

active

053538340

ABSTRACT:
The invention relates to a check valve, for use as an insert check valve, with a valve seat and a valve element that is resiliently prestressed against the valve seat by a valve spring. According to the invention, a retaining element embodied as a retaining bracket is provided, which supports the end of the valve spring remote from the valve element and the retaining element can be locked resiliently to a recess, particularly an annular groove, of the valve housing. This enables fast, simple assembly of the check valve from its individual parts.

REFERENCES:
patent: 833559 (1906-10-01), Stebbins
patent: 2649277 (1953-08-01), Blackford
patent: 2904065 (1959-09-01), Butlin
patent: 3053270 (1962-09-01), Campbell
patent: 3830255 (1974-08-01), Freiheit
patent: 3913615 (1975-10-01), Cooper
patent: 3932898 (1976-01-01), Wright
patent: 4310018 (1982-01-01), Parr et al.
patent: 4700741 (1987-10-01), Murphy
patent: 5193579 (1993-03-01), Bauer et al.

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