Measuring and testing – With fluid pressure – Porosity or permeability
Reexamination Certificate
2006-04-11
2009-12-01
Williams, Hezron (Department: 2856)
Measuring and testing
With fluid pressure
Porosity or permeability
Reexamination Certificate
active
07624621
ABSTRACT:
The invention relates to a method for measuring gases permeation through a material (M), comprising the steps of:Forming a mixture of isotopic gases in a mixing enclosure (14), each isotopic gas corresponding to a target gas for which permeation through the material (M) is sought, the isotopic gas having a mass number different from that of the corresponding target gas;Filling with the mixture of isotopic gases a first chamber (11) of a permeation enclosure (10) comprising first (11) and second (12) chambers, the first chamber (11) being separated from the second chamber (12) by the material (M);Simultaneously analyzing the isotopic gases having permeated through the material (M) and being present in the second chamber (12), in order to simultaneously calculate permeation through the material (M) of each of the corresponding target gases.The invention further relates to a device for implementing such a method, and a method for using this device.
REFERENCES:
patent: 5131261 (1992-07-01), Tou et al.
patent: 5138870 (1992-08-01), Lyssy
patent: 5265463 (1993-11-01), Loebig
patent: 6804989 (2004-10-01), Bujas et al.
patent: 6964191 (2005-11-01), Tata
patent: 7094036 (2006-08-01), Mennie et al.
patent: 7121135 (2006-10-01), Moore
patent: 2003/0001086 (2003-01-01), Noerenberg et al.
patent: 2004/0083796 (2004-05-01), Bujas et al.
patent: 2004/0123646 (2004-07-01), Echigo et al.
patent: 63-061141 (1988-03-01), None
patent: 63061141 (1988-03-01), None
patent: WO-02/088657 (2002-11-01), None
Ranade et al.; “High sensitivity gas permeable measurement system for thin plastic films”, Review of Scientific Instruments, vol. 76, 013902, 2005 American Institute of Physics.
Mocon Brochure, “Modular Carbon Dioxide Transmission Rate Test System for Barrier Films, Packages, and Bottles”, Copyright 1997, Modern Controls, Inc.
Mocon Brochure, “Permatran-W Model 3/33, The Standard for Water Vapor Transmission Rate Testing of Flat Films & Finished Packages”, Copyright 2002, MOCON, Inc.
Mocon Brochure, “OX-TRAN Model 2/21, The Standard for Oxygen Transmission Rate Testing of Flat Films & Finished Packages”, 2002 MOCON Inc.
Cros Stéphane
Firon Muriel
Trouslard Philippe
Commissariat A l'Energie Atomique
Gissel Gunnar J
Lerner David Littenberg Krumholz & Mentlik LLP
Williams Hezron
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