Vacuum infusion port apparatus and method of use

Details Vacuum infusion port apparatus and method of use Vacuum infusion port apparatus and method of use

B - Operations, Transporting

29

C

B29C 70/44 (2006.01) B29C 70/54 (2006.01)

Patent

CA 2563129

Vacuum infusion molding is performed by inserting a flexible bag over dry goods disposed in an open mold space of a rigid mold, and over a plurality of bases disposed on the dry goods, attaching a periphery of the bag to the mold, making a slit in the bag over a through-passage of one of the bases, pushing a fitting through the slit and into the one base to communicate the mold space with an area outside of the mold space, and applying a vacuum to the mold space through that fitting to draw the bag tightly against a surface of the dry goods. Prior to the making of the slit, the bag is affixed to the one base without tearing the bag. During the subsequent application of the vacuum, the bag is unsecured relative to the other bases to be able to move freely relative to those other bases under the action of the vacuum.

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