Leak detection in vacuum bags

Details Leak detection in vacuum bags Leak detection in vacuum bags

2007-07-28

2010-12-14

Williams, Hezron (Department: 2856)

Measuring and testing

With fluid pressure

Leakage

C264S571000, C264S040100, C436S003000

Reexamination Certificate

active

07849729

ABSTRACT:
Air leaks in a vacuum bag are detected using a leak detection film covering the inside face of the bag. The film includes a gas permeable binder carrying oxygen sensitive material that changes in physical appearance at the location of an air leak. The film may be adhered to the inside face of the bag or may form a separate membrane that is placed over a layup being molded in the bag. The film may be illuminated with light having a wavelength selected to cause the film to luminesce.

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patent: PCT/US2007/023455 (2006-12-01), None

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