Measuring and testing – With fluid pressure – Dimension – shape – or size
Patent
1974-10-10
1976-05-25
Queisser, Richard C.
Measuring and testing
With fluid pressure
Dimension, shape, or size
73 492, 73 52, G01M 302
Patent
active
039584488
ABSTRACT:
A pressure testing apparatus for sealed containers including a container receiving enclosure defined by a base wall, a side wall and a top wall. A container supporting pedestal having a needle projecting upwardly therefrom is positioned within the container receiving enclosure. A pressurized fluid supply means is in communication with the needle. An adjustable container retaining member is disposed within the container receiving enclosure in spaced overlying relationship with respect to the container supporting pedestal. Pressure control means are interposed between the pressurized fluid supply means and the needle.
A method of testing a sealed container which includes placing the sealed container within the container receiving enclosure, piercing the container by means of a generally upward projecting needle to establish sealed contact between the needle and the interior of the container. The container is secured in test position by means of an adjustable container retaining member which limits upward movement of the container to an amount insufficient to lift the container entirely off the needle. Pressurized fluid is subsequently supplied to the interior container and such delivery of pressurized fluid is terminated when the internal pressure reaches a predetermined level or when container failure occurs.
REFERENCES:
patent: 983962 (1911-02-01), Werner
patent: 1211942 (1917-01-01), Hoff
patent: 2697935 (1954-12-01), Gordon
patent: 2912852 (1959-11-01), Trinneer
patent: 3251218 (1966-05-01), Russell
patent: 3418845 (1968-12-01), Helms
patent: 3462996 (1969-08-01), Frank
patent: 3712112 (1973-01-01), Widmer et al.
patent: 3771649 (1973-11-01), Strauss
Clements Joseph A.
Denhart William L.
Kelly Frank M.
Willis Wilburn C.
Aluminum Company of America
Appleman John S.
Queisser Richard C.
Silverman Arnold B.
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