Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – By fluid pressure actuated flexible diaphragm
Reexamination Certificate
2006-01-31
2006-01-31
Davis, Robert (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
By fluid pressure actuated flexible diaphragm
C425S405100, C425S504000, C156S382000, C156S286000
Reexamination Certificate
active
06991449
ABSTRACT:
The invention is an apparatus for de-bulking a composite material preform laid up in a mold. In detail, the apparatus includes a flexible cover adapted to fit over the mold and preform and attach to the sides of the mold. The cover includes an inlet port located in the cover such that when the cover is fit over the mold and preform, the inlet port positioned over the preform. A stretchable cord seals the peripheral portions of the cover to the sides of the mold forming a chamber over the preform. A hot air pump is coupled to the inlet port of the cover for pumping hot air into the chamber.
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Hurka Tom
Mead William T.
Potter John
Dachs Louis L.
Davis Robert
Northrop Grumman Corporation
Rao G. Nagesh
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