Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1976-07-09
1979-05-08
Hoag, W. E.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
264293, 264296, 264347, B29C 500, B29C 2400
Patent
active
041536622
ABSTRACT:
A method of and apparatus for replicating nest members, each of which has a precisely formed nest cavity for the snug yet removable receipt of an article of jewelry or the like. The method comprises impressing a master pattern having a configuration conforming to the jewelry article to be ultimately held by the nest member into a body of a curable material to form a cavity having a contour which corresponds to the nest cavity of the nest member. The body is cured to a hardened state and then placed on an unvulcanized first rubber mold member so that the impression is directed toward the mold member. The mold member is vulcanized so that a surface thereof takes a configuration which is complementary to that of the impression in the body. Thereafter, a jewelry nest member is cast in a mold comprised of the mold member and a second cooperating mold member, also of rubber. The finished jewelry nest member, therefore, will have a surface cavity whose configuration is precisely that of the nest cavity desired to be formed. The apparatus provides for the precise formation of the impression in the body.
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Cecere Anthony F.
Descovich Theodore
Donadio Louis F.
Avon Products Inc.
Hoag W. E.
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