System and method for vacuum bag fabrication

Details System and method for vacuum bag fabrication System and method for vacuum bag fabrication

2004-11-30

2008-10-21

Aftergut, Jeff H (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S285000, C156S382000, C264S511000, C264S571000

Reexamination Certificate

active

07438781

ABSTRACT:
A system and method for vacuum bag assembly fabrication via the vacuum bag method which reduces the amount of trapped air. The inventive system includes a chamber adapted to contain a vacuum bag and first and second evacuating mechanisms. The first evacuating mechanism serves to evacuate the bag and vent to atmosphere. The second evacuating mechanism serves to evacuate and vent the chamber to atmosphere. Thus, generally, the inventive method includes the steps of placing a vacuum bag lay up in an air tight chamber; and evacuating the vacuum bag lay up and the air tight chamber at the same time. In practice, the assembly would consist of at least two components and a heat curable composition. The components can be parts to be bonded together or layers of cloth to be made into a laminate. In this case, the heat curable composition would be a catalyzed adhesive or resin.

REFERENCES:
patent: 4016022 (1977-04-01), Browning et al.
patent: 4816106 (1989-03-01), Turris et al.
patent: 6827811 (2004-12-01), Andrews et al.
patent: EP0186787 (1986-09-01), None

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