Attachment for safety valves

Details Attachment for safety valves Attachment for safety valves

1981-10-15

1984-02-21

Chambers, A. Michael

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

251 67, 251116, F16K 1740

Patent

active

044323832

ABSTRACT:
A restraining block engages the valve stem of a safety valve, holding the valve open. The block is selectively rotatable within an auxiliary housing from a locked to a released position wherein both block and stem are free to move along the stem axis, permitting the valve to close.

REFERENCES:
patent: 2295486 (1942-09-01), Lebus
patent: 2526363 (1950-10-01), Jones
patent: 2950022 (1960-08-01), Boyer
patent: 3015337 (1962-01-01), Hookway
patent: 3180524 (1965-04-01), Shepard et al.
patent: 3842853 (1974-10-01), Kelly et al.

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