Fluid handling – Ambient condition change responsive – Underwater
Patent
1978-03-30
1980-10-07
Weakley, Harold W.
Fluid handling
Ambient condition change responsive
Underwater
137DIG9, 13750525, 1375147, F16K 1736
Patent
active
042262577
ABSTRACT:
This invention relates to pressure regulators used in scuba diving wherein a pressure sensing means is employed to actuate an associated valve member for controlling pressure in the regulator. Specifically, the instant invention relates to that portion of the regulator housing including biasing means operably connected to said pressure sensing means wherein a pressure relief opening is provided in the regulator housing so as to expose the biasing means to ambient pressure conditions. The instant invention teaches the provision of a pressure bleed means for transmitting pressurized air through the regulator housing portion including the biasing means and outwardly through said relief opening. By this arrangement ambient water may not pass into the regulator housing through said relief opening which could otherwise result in potentially adverse effects on the operation of the biasing means.
REFERENCES:
patent: 2270304 (1942-01-01), Jacobsson
patent: 2721576 (1955-10-01), Grove
patent: 2855950 (1958-10-01), Phillips
patent: 2982294 (1961-05-01), Koutnik
patent: 3004686 (1961-10-01), McKee
patent: 3212516 (1965-10-01), Natho
patent: 3618690 (1971-11-01), Johnson
patent: 3685533 (1972-08-01), Krechel
Sherwood-Selpac Corporation
Weakley Harold W.
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