Fluid handling – Processes
Patent
1996-11-05
1997-12-09
Chambers, A. Michael
Fluid handling
Processes
137 785, 137 79, 251248, 251292, 251294, F16K 1738
Patent
active
056949600
ABSTRACT:
The present invention relates to an automatic valve actuating system that is responsive to various externally detected stimuli. The system is comprised of a monitoring and alarm components that close a valve upon the detection of a fault occurring from the undesirable presence of carbon monoxide or combustible gases. Combustible gases, such as, propane, methane, hydrogen and the like can create a hazardous explosive environment, especially when these gases are mixed with the oxygen in the air. The valve actuating apparatus mounts directly to an existing valve, such as one that opens and closes within a quarter of a turn. An audible alarm is given when a hazardous condition is detected. For those who are hearing impaired, an optional visual alarm is also given. A CO.sub.2 cylinder provides a pressure source to operate a pneumatic linear actuator. A low pressure switch sounds a secondary alarm to alert the maintenance personnel to replace the carbon dioxide tank.
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Morgan Douglas A.
Turk Edward J.
Chambers A. Michael
Taddeo Joseph H.
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