Measuring and testing – With fluid pressure – Leakage
Patent
1993-06-02
1996-03-19
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
G01M 320
Patent
active
054995299
ABSTRACT:
A package containing a tracer gas, and a method for determining the presence of a hole in the package by sensing the presence of the gas outside the package. The preferred tracer gas, especially for food packaging, is sulfur hexafluoride. A quantity of the gas is added to the package and the package is closed. The concentration of the gas in the atmosphere outside the package is measured and compared to a predetermined value of the concentration of the gas in the absence of the package. A measured concentration greater than the predetermined value indicates the presence of a hole in the package. Measuring may be done in a chamber having a lower pressure than that in the package.
REFERENCES:
patent: 3027753 (1962-04-01), Harder, Jr.
patent: 3091114 (1963-05-01), Webster
patent: 3585845 (1971-06-01), Cornell et al.
patent: 3591944 (1971-07-01), Wilcox
patent: 3592049 (1971-07-01), Johanski, Jr.
patent: 3708949 (1973-01-01), Wilcox
patent: 3744210 (1973-07-01), O'Lenick et al.
patent: 4226113 (1980-10-01), Pelletier et al.
patent: 4328700 (1982-05-01), Fries
patent: 4722219 (1988-02-01), Batcher et al.
patent: 5029463 (1991-07-01), Schvester et al.
patent: 5163315 (1992-11-01), Asai et al.
patent: 5369983 (1994-12-01), Grenfell
patent: 5373729 (1994-12-01), Seigeot
patent: 5388446 (1995-02-01), Kronberg
Concentration and Ultrasensitive Chromatographic Determination of Sulfur Hexafluoride for Application to Metcorological Tracing, by C. A. Clemsons, A. I. Coleman, and B. E. Saltzman, published in Environmental Science and Technology, vol. 2, No. 7, Jul. 1966.
Pimenov, V. V. An Electron Capture Leak Tester. in Sov. J. Non-Dest. Test (USA) vol. 14, No. 6, pp. 532-536 Jun. 1978.
Cadieux James R.
Kronberg James W.
Brock Michael J.
Dixon Harold M.
Moser William R.
The United States of America as represented by the United States
Tumm Brian
LandOfFree
Detecting small holes in packages does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Detecting small holes in packages, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting small holes in packages will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1953219