Measuring and testing – With fluid pressure – Leakage
Patent
1988-01-07
1989-03-07
Levy, Stewart J.
Measuring and testing
With fluid pressure
Leakage
73 497, 73 498, G01M 333
Patent
active
048095427
ABSTRACT:
A removable leak testing device for pressure vessels is disclosed. The leak testing device has a base member which overlies the open top of the inlet of the pressure vessel and has a pair of pivotally mounted latches which are mounted on opposite sides of the base member. Each of the latches has at least one finger engagement member which is designed to engage the underside of an out-turned peripheral rim of the inlet of the pressure vessel. A hollow stem is slideably disposed within a central aperture of the base member where the hollow stem has a resilient seal member on one of its ends for engaging an interior seat within the inlet of the pressure vessel. A compression spring is placed between the base member and the resilient seal and surrounds the stem while a nut is bottomed on the base member which enables compression of the spring by rotation of the latches causing the fingers to pull the base member toward the neck to compress the spring and load the seal on the seat of the inlet opening.
REFERENCES:
patent: 2847851 (1958-08-01), Enell
patent: 3014361 (1961-12-01), Black
patent: 3035436 (1962-05-01), Johnson
patent: 3680361 (1972-08-01), Taylor
patent: 4351446 (1982-09-01), Madden
patent: 4467936 (1984-08-01), Makhijani
Levy Stewart J.
Williams Hezron E.
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