Apparatus and technique for measuring permeability and...

Details Apparatus and technique for measuring permeability and... Apparatus and technique for measuring permeability and...

2005-11-15

2005-11-15

Chapman, John E. (Department: 2856)

Measuring and testing

With fluid pressure

Porosity or permeability

C073S040700, C073S049300

Reexamination Certificate

active

06964191

ABSTRACT:
The invention is concerned with apparatus and methods for measuring package permeability and/or permeant sorption. The apparatus includes a housing defining an inner sealed chamber that is substantially impervious to a permeant of interest. The chamber has an inlet for introducing an inert medium substantially free of the permeant and an outlet for removing the inert medium. A sensor is positioned within the chamber and to provide signals indicative of permeant concentrations. A sealable opening is provided in the housing for introducing, within the chamber, packages to be measured for permeability and/or permeant sorption. In the method, testing of permeant concentrations is cycled to determine the slope of a time line between a low and a high concentration of the permeant. Humidity and temperature are preferably maintained constant within the chamber during testing.

REFERENCES:
patent: 3850040 (1974-11-01), Orr et al.
patent: 4047422 (1977-09-01), Lyssy
patent: 4944180 (1990-07-01), Tou et al.
patent: 5002399 (1991-03-01), Akinc et al.
patent: 5138871 (1992-08-01), Retta et al.
patent: 5239482 (1993-08-01), Ajot et al.
patent: 5345814 (1994-09-01), Cur et al.
patent: 5580925 (1996-12-01), Iwahara et al.
patent: 6327892 (2001-12-01), Koiso et al.
patent: 6450012 (2002-09-01), Mayer et al.
patent: 6460405 (2002-10-01), Mayer et al.
patent: 6477888 (2002-11-01), Mizobe
patent: 6598463 (2003-07-01), Sharp et al.
patent: 2002/0194899 (2002-12-01), Gebele et al.

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