Pressure tapping

Details Pressure tapping Pressure tapping

1979-04-19

1981-06-09

Schwadron, Martin P.

Fluid handling

With indicator, register, recorder, alarm or inspection means

Fluid pressure responsive indicator, recorder or alarm

1376142, 2511494, 2511496, F16L 3728, F16L 3710

Patent

active

042718635

ABSTRACT:
A pressure tapping comprises first valve means selectively operable to be in an open or a closed setting, and second valve means connected to an outlet from the first valve means, which second valve means tends to be closed when fluid pressure acts on it from the said outlet, so that accidental leakage of fluid from the pressure tapping, by failure to close the first valve means when the adapter is removed from the pressure tapping, is less likely.

REFERENCES:
patent: Re19087 (1934-02-01), Minor
patent: 1221258 (1917-04-01), Wilson
patent: 1317789 (1919-10-01), Hoar
patent: 1318674 (1919-10-01), Knoll
patent: 2385489 (1945-09-01), Benz
patent: 2386270 (1945-10-01), Samiron
patent: 3372902 (1968-03-01), Gotzenberger
patent: 3538950 (1970-11-01), Porteners
patent: 3760842 (1973-09-01), Mikiya

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