Method for making a container of composite material

Details Method for making a container of composite material Method for making a container of composite material

1975-06-30

1977-08-09

Silbaugh, Jan H.

Metal working

Method of mechanical manufacture

Utilizing transitory attached element or associated separate...

29463, 156630, 156642, 156656, 156665, 156173, 220 3, 264 37, 264221, 264317, 264DIG44, B21D 3900, B23P 1700, C23F 102

Patent

active

040401634

ABSTRACT:
Very light weight containers are made of synthetic resin reinforced by fiber material, such as glass fibers or carbon fibers, by first manufacturing a hollow dimensionally precise core having the shape of the container and including access openings at each end of the container. The composite material is then applied to the prefabricated core and after the setting of the composite material the core is either completely or partially removed by chemical means, which are pumped through the inside of the container to etch away the core, which is, for example, made of aluminum. A very controlled and precise core removal may be accomplished in this manner.

REFERENCES:
patent: 2744043 (1956-05-01), Ramberg
patent: 3133659 (1964-05-01), Dobell et al.
patent: 3312575 (1967-04-01), Corbin, Jr.
patent: 3366522 (1968-01-01), Underwood
patent: 3411999 (1968-11-01), Weinberg
patent: 3654009 (1972-04-01), Judd et al.
patent: 3692892 (1972-09-01), Lemelson
patent: 3815773 (1974-06-01), Duvall et al.

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