Method of making ornamental jewelry stones

Details Method of making ornamental jewelry stones Method of making ornamental jewelry stones

1979-05-21

1981-01-06

Lawrence, Evan K.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Punching article from sheet material

63DIG3, 264163, 264251, 428 13, 428 68, 428 76, 430 13, B29C 1300, B29C 2100

Patent

active

042436265

ABSTRACT:
A process of forming a decorative jewelry stone wherein a photographic film image, created by photographing positive artwork and being essentially transparent except for the image thereon, is utilized as the mold for receiving an uncured plastic resin in substantially liquid form. The resin is permitted to cure, the resultant partially formed article with the film portion attached thereto reversed in position such that a second amount of similar resin can be applied thereto to essentially embed the film portion therein. Since the film portion is essentially transparent except for the image thereon, the remaining portions of the film visually merges with the resin segments on either side thereof such that only the image is readily observable.

REFERENCES:
patent: 3613265 (1971-10-01), Stern et al.
patent: 3725112 (1973-04-01), Hansen
patent: 4092173 (1978-05-01), Novak et al.

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