Accession Number : AD0164863

Title :   Gross Leak Vacuum and Pressure Chamber Assembly.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Farrell,John P. ; O'Connell,Edward P.

Report Date : 12 JUN 1973

Pagination or Media Count : 6

Abstract : The patent describes a chamber assembly for subjecting a hermetically sealed package to a vacuum, to changes in pressure and to other procedures to precondition the package prior to testing it to determine its degree of hermeticity. The assembly includes a test chamber, a receptacle which fits into the test chamber and houses the hermetically sealed package which is to be preconditioned, a source of gas under high pressure connected to the test chamber, a source of fluorocarbon liquid also connected to the test chamber, a vacuum pump likewise connected to the test chamber, and cooperative interconnected components, such as a pressure regulator, a vacuum gauge, a safety valve, and a plurality of pressure shutoff valves and of vacuum shutoff valves. (Modified author abstract)

Descriptors :   *Test facilities, *Patents, Chambers, Hermetic seals, Packaging, Vacuum chambers, Pressure vessels

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE