Metal working – Method of mechanical manufacture – Jewelry or locket making
Patent
1995-04-04
1997-01-21
Echols, P. W.
Metal working
Method of mechanical manufacture
Jewelry or locket making
164 35, 427510, 430320, B21F 4300, B22C 902, C08J 704
Patent
active
055949894
ABSTRACT:
The instant invention contemplates a process for manufacturing jewelry including the steps of: (a) creating a photographic negative from a computer-generated image; (b) masking the negative over a photopolymerizable resin backed by a rigid substrate; (c) irradiating the unmasked resin with ultraviolet radiation; (d) removing the unpolymerized resin from the photopolymer, using a washing agent such as water, resulting in a positive three-dimensional likeness of the object to be cast; (e) placing the resulting etched resin plate into a container and pouring tooling resin into the container thereby creating a plug bearing the negative impression of the jewelry item to be created; (f) inserting the tooling resin plug into a jewelry item mold having an empty sleeve which receives the plug resulting in a completed jewelry mold; (g) filling the completed mold with plastic resulting in a plastic model of the jewelry item to be created; (h) using the plastic model in a "lost wax" casting process to create an individual jewelry item.
REFERENCES:
patent: 3659327 (1972-05-01), Beverick et al.
patent: 4844144 (1989-07-01), Murphy et al.
patent: 5152042 (1992-10-01), Mayers
patent: 5351378 (1994-10-01), Hsien-Chung
Aurafin Corporation
Echols P. W.
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