Fluid handling – With leakage or drip collecting
Patent
1987-11-19
1989-06-20
Hepperle, Stephen
Fluid handling
With leakage or drip collecting
1375053, 13750542, 137557, G05D 1606
Patent
active
048401951
ABSTRACT:
A gas pressure regulator including a housing having a high pressure chamber into which the gas to be regulated is fed, a low pressure chamber, and an orifice between the high pressure chamber and the low pressure chamber. A bonnet is mounted on the housing across the low pressure chamber. A flexible diaphragm is mounted across the low pressure chamber and separates the low pressure chamber from the bonnet. A rod extends through the orifice and connects the flexible diaphragm to a valve plug in the high pressure chamber so that movement of the flexible diaphragm moves the valve plug toward and away from the orifice. A rigid piston is slidable mounted in the bonnet. A spacer connects the flexible diaphragm and the rigid piston in spaced relation to provide a chamber therebetween. An adjustment stem having a knob on its end is threaded through the bonnet and a spring is compressed between the adjustment stem and the piston. A pressure sensor is mounted on the bonnet at the chamber between the flexible diaphragm and the rigid piston to indicate any change in pressure in the chamber as a result of leakage across the flexible diaphragm.
REFERENCES:
patent: 1042745 (1912-10-01), Zahm
patent: 2035151 (1936-03-01), Eches
patent: 2147850 (1939-02-01), MacLean
patent: 2691773 (1954-10-01), Lichtenberger
patent: 3131638 (1954-05-01), Ellison et al.
patent: 3661060 (1972-05-01), Bowen
patent: 3952691 (1976-04-01), Peltz et al.
patent: 4010769 (1977-03-01), DeLorenzo et al.
patent: 4272959 (1981-06-01), Yamane
Air Products and Chemicals Inc.
Hepperle Stephen
Marsh William F.
Simmons James C.
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