The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1976
Filed:
Oct. 10, 1974
Wilburn C Willis, Hagerstown, IN (US);
William L Denhart, Hagerstown, IN (US);
Frank M Kelly, Richmond, IN (US);
Joseph A Clements, Richmond, IN (US);
Aluminum Company of America, Pittsburgh, PA (US);
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.