Valves and valve actuation – Biased valve – Springs and spring retainers
Patent
1988-07-08
1989-09-19
Fox, John C.
Valves and valve actuation
Biased valve
Springs and spring retainers
251288, F16K 2500
Patent
active
048674150
ABSTRACT:
An improved valve apparatus and a method of operation thereof having a spring retainer member means suitable for accommodating a spring means therein for operably coupling thereabove a pipe coupling body means are disclosed. Inside the pipe coupling body means is a ball headed member means having an aperture passing therethrough for blocking off or allowing passage of medium through the pipe coupling body means. The spring retainer member means is turned in one direction in order to allow unimpeded passage or to control the amount of flow thereof of said medium and can be rapidly and efficiently sprung back to its original position in order to completely block off the passage of said medium through the pipe coupling body means for a rapid and efficient "on-off" control thereof.
REFERENCES:
patent: 2890017 (1959-06-01), Shafer
patent: 2930575 (1960-03-01), Britton
patent: 2973182 (1961-02-01), Gill
patent: 3533597 (1970-10-01), Bolling
patent: 4460157 (1984-07-01), Marchal
patent: 4779840 (1988-10-01), Andrea
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