Earthquake triggered gas valve
Patent
·
OSTI ID:6312738
A gas valve automatically closed from a normally open position by a shock is described, the gas valve consisting of: a housing having a gas inlet chamber and outlet chamber, the chambers being separated by a partition, the outlet chamber having a floor; a valve seat in an opening in the partition; a valve member mounted on a valve rod passing through the center of the valve seat opening and having a first end terminating in the outlet chamber, the valve member positioned to engage the valve seat to seal the opening between the inlet and outlet chambers; and a hollow ball positioned between the floor of the outlet chamber and the first end of the valve rod for forcing the valve member out of the valve seat and to open the gas valve, the hollow ball containing a fluid having an inertia that will oppose a shock produced movement of the housing.
- Assignee:
- NOV; NOV-89-053134; EDB-89-076205
- Patent Number(s):
- US 4799505
- OSTI ID:
- 6312738
- Country of Publication:
- United States
- Language:
- English
Similar Records
Gas lift valve
CAM operated fuel valve
Emission control valve with gas flow shut-off
Patent
·
Mon Feb 01 23:00:00 EST 1971
·
OSTI ID:5865261
CAM operated fuel valve
Patent
·
Tue Sep 03 00:00:00 EDT 1991
·
OSTI ID:5661470
Emission control valve with gas flow shut-off
Patent
·
Mon Mar 05 23:00:00 EST 1990
·
OSTI ID:6838897