System and method for manufacturing and testing composite acoustic panels
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United States of America Patent
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Jun 13, 2017
Grant Date -
Feb 4, 2016
app pub date -
Aug 4, 2014
filing date -
Aug 4, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for temporarily sealing holes in a perforated material layer of a composite acoustic panel so as to reduce potential migration of a release agent through the holes during a curing process and to reduce ingression of water through the holes during a subsequent testing process. The release agent is applied to a tool, the barrier layer is arranged over the release agent, and a lay-up of elements, beginning with the perforated layer, are arranged over the barrier layer prior to heating the lay-up to form the panel. The barrier layer may be a substantially solid film, such as a plastic or nylon film, having a width of at least approximately twelve inches and a low vapor permeability with regard to the release agent. After the testing process is complete, the barrier layer may be peeled from the panel.
First Claim
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International Classification(s)
- F02K:JET-PROPULSION PLANTS
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- G10K:SOUND-PRODUCING DEVICES
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- F02C:GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION....
- B29L:INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RE....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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