Safe high pressure instrument valve

Details Safe high pressure instrument valve Safe high pressure instrument valve

1984-05-15

1985-05-28

Scott, Samuel

Valves and valve actuation

Mechanical movement actuator

Plural motions of valve

137315, F16K 3144

Patent

active

045195803

ABSTRACT:
A safe high pressure instrument valve comprising a body, a bonnet and stem wherein the stem cannot be inadvertently removed from the bonnet and the bonnet cannot be inadvertently removed from the body. An expanded portion of the stem is removably captured in the bonnet to ensure that the stem remains in the bonnet during operation. A locking means comprising a lock nonrotatably attached to the bonnet, a locking element nonrotatably attached to the body and a means for releasable engaging the lock to the locking element ensures that the bonnet will not be inadvertently removed from the body during operation.

REFERENCES:
patent: 1391012 (1921-09-01), Schulder
patent: 1989083 (1935-01-01), Dahnken et al.
patent: 2796881 (1957-06-01), Scheiwer
patent: 2895495 (1959-07-01), Bryant
patent: 3204925 (1965-09-01), Montuori
patent: 4204558 (1980-05-01), Johnson et al.

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