B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
B22C 7/02 (2006.01) B22C 9/04 (2006.01)
Patent
CA 2205957
Producing master patterns for the jewelry, sculpture and other related fine arts fields and duplicated cast metal reproductions of them, consisting of the following steps. Using a flexible steel blade with an attached handle and placing upon it's surface a section of a rigid thermoplastic polystyrene sheeting, heating the sheeting to bring it to a soft state that can be maneuvered, using a 1/8" diameter copper rod, to produce an acceptable original master pattern, plunging the metal blade into a chilling container, in order to return the polystyrene created master pattern to it's original rigid state, thus preserving the form and details of the created master pattern, flexing the steel blade into an arc, in order to dislodge the master pattern. Using conventional hand tools, such as scalpels, files, drills, routers, etc. to improve the details of the created pattern and eliminate any unwanted details. Using the improved master pattern in conjunction with a room temperature, air hardening, silicone based compound to produce a flexible mold capable of producing duplicates of the created pattern in an expendable wax or plastic based compound, for use in conjunction with the well documented 'lost wax process' in the production of cast metal duplicates of the created master pattern.
Newton Ernest John
Newton Nancy Blyth
Na
Newton Ernest John
Newton Nancy Blyth
LandOfFree
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