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Title: Earthquake relief valve

Abstract

A shock actuated shut-off valve is described, comprising: a valve, having an open position and a closed position, rotatably mounted within a valve body; a valve stem connected to the valve; an elongated handle having a valve stem engagement end and a ball detent engagement end, the valve stem engagement end connected to the valve stem; means for urging the valve to rotate into the closed position; means for stopping further rotation of the valve when the valve is in the closed position; a ball detent; and a pendulum having a ball detent engagement end and a plumb end, the ball detent engagement end supporting the second ball, the pendulum responding to a shock by freeing the second ball, thereby freeing the elongate handle and allowing the valve to move to the closed position.

Inventors:
Publication Date:
OSTI Identifier:
6128837
Patent Number(s):
US 4821759
Assignee:
NOV; NOV-89-063073; EDB-89-107519
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 12 Feb 1988
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; PIPELINES; SEISMIC EFFECTS; RELIEF VALVES; DESIGN; EQUIPMENT PROTECTION DEVICES; NATURAL GAS; NATURAL GAS DISTRIBUTION SYSTEMS; OPERATION; PETROLEUM; SAFETY; TRANSPORT; CONTROL EQUIPMENT; ENERGY SOURCES; ENERGY SYSTEMS; EQUIPMENT; FLOW REGULATORS; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASES; VALVES; 022000* - Petroleum- Transport, Handling, & Storage; 032000 - Natural Gas- Transport, Handling, & Storage

Citation Formats

Diamond, H E. Earthquake relief valve. United States: N. p., 1989. Web.
Diamond, H E. Earthquake relief valve. United States.
Diamond, H E. 1989. "Earthquake relief valve". United States.
@article{osti_6128837,
title = {Earthquake relief valve},
author = {Diamond, H E},
abstractNote = {A shock actuated shut-off valve is described, comprising: a valve, having an open position and a closed position, rotatably mounted within a valve body; a valve stem connected to the valve; an elongated handle having a valve stem engagement end and a ball detent engagement end, the valve stem engagement end connected to the valve stem; means for urging the valve to rotate into the closed position; means for stopping further rotation of the valve when the valve is in the closed position; a ball detent; and a pendulum having a ball detent engagement end and a plumb end, the ball detent engagement end supporting the second ball, the pendulum responding to a shock by freeing the second ball, thereby freeing the elongate handle and allowing the valve to move to the closed position.},
doi = {},
url = {https://www.osti.gov/biblio/6128837}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 18 00:00:00 EDT 1989},
month = {Tue Apr 18 00:00:00 EDT 1989}
}