Fluid leak detector

Details Fluid leak detector Fluid leak detector

1988-01-15

1989-07-11

Levy, Stewart J.

Communications: electrical

Condition responsive indicating system

Specific condition

73 405R, G01M 308

Patent

active

048475998

ABSTRACT:
A fluid leak detector has a body with a chamber provided with a fluid inlet and outlet. A valve is disposed between the inlet and outlet and the valve closure member is connected to a diaphragm. Fluid in the chamber applies pressure on the diaphragm and the detector includes means which allow the valve to be open at a pressure greater than a predetermined value and cause the valve to close at pressures below that value, which may be due to a fluid leak. The detector has a safety lock-off mechanism which locks the valve once it has closed and which must be reset to allow the valve to open when fluid pressure has been restored. The detector also provides a visual indication of fluid leaks. A fluid supply installation incorporating the fluid leak detector will shut down the fluid supply if a leak is detected.

REFERENCES:
patent: 1940346 (1933-12-01), Edwards
patent: 2230961 (1941-02-01), Lewis
patent: 2683261 (1954-07-01), Safford
patent: 3454195 (1969-07-01), Deters
patent: 4573343 (1986-03-01), Huiber
patent: 4679587 (1987-07-01), Jarr

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