Gas supply safety valve for earthquake protection

Details Gas supply safety valve for earthquake protection Gas supply safety valve for earthquake protection

1986-09-19

1987-12-29

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

F16K 1736

Patent

active

047153946

ABSTRACT:
A normally open gas supply safety valve sensitive to earthquake accelerations on x, y and z axes to displace a ball valve restrained by an arcuate groove with edges over which the ball valve rolls onto a seat for positive shut-off, including an abutment to ensure ball movement onto the seat, and including a leveler for installation.

REFERENCES:
patent: 2585316 (1952-02-01), Hobson
patent: 3747616 (1973-07-01), Lloyd
patent: 4111220 (1978-09-01), Winters
patent: 4485832 (1984-12-01), Plemmons

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