Selectively-flexible mold having a shell supported by a collapsi

Details Selectively-flexible mold having a shell supported by a collapsi Selectively-flexible mold having a shell supported by a collapsi

1993-12-22

1995-07-18

Woo, Jay H.

Static molds

Container-type molding device

Including means securing molding device to detachable,...

249179, 249183, 264313, 425389, 425403, 425438, 425440, 425470, B29C 3348

Patent

active

054334187

ABSTRACT:
A selectively-flexible, selectively-rigid, reusable, one-piece mold is used to fabricate a composite part having a complex shape on an outer surface of the mold. Disposed within the interior of the shell is a grid-type support truss structure having a plurality of individual support members attached at one end to headers that are attached by clips to the inside surface of the shell at predetermined locations. The support members are locked in place relative to each other by the use of pins placed in holes formed at various locations in the support members. When locked in place in this manner, the shell is stiffened, thereby facilitating the fabrication of the composite part on the mold. When the pins are removed, the shell is allowed to flex, thereby facilitating the removal of the cured composite part from the outer surface of the mold.

REFERENCES:
patent: 1568957 (1926-01-01), Camp
patent: 2356860 (1944-08-01), Lewis
patent: 2374386 (1945-04-01), Shakesby
patent: 3433451 (1969-03-01), Hittel
patent: 4695032 (1987-09-01), Desport
patent: 4882118 (1989-11-01), Megarry
patent: 5071338 (1991-12-01), Dublinski et al.
patent: 5152949 (1992-10-01), Leoni et al.

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