Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2006-12-12
2006-12-12
Tran, Len (Department: 1725)
Metal founding
Process
Shaping a forming surface
C164S035000, C164S045000
Reexamination Certificate
active
07147032
ABSTRACT:
In a process for the assembly of wax trees, a wax runner is placed in a flat position, and a wax pattern is located adjacent to the wax runner. Both the wax pattern and the wax runner are heated and then placed in contact with one another where heated. Then the wax pattern and the wax runner are separated slightly to form a fillet weld between the wax pattern and the wax runner. An apparatus is also provided which, by robotics, brings a multiplicity of wax patterns to a wax runner and which automatically heats both the wax patterns and the wax runner before simultaneously pressing both the wax patterns and the wax runner together. Once a wax tree assembly is completed, a new wax runner replaces the wax runner that has been formed into a wax tree, and additional wax patterns are affixed in the same manner.
REFERENCES:
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patent: 4651799 (1987-03-01), Chandley
patent: 4673023 (1987-06-01), Winston
patent: 6505672 (2003-01-01), Mertins
patent: 11244995 (1999-09-01), None
V. A. Serov—Assembly Unit for Wax Pattern Blocks 1987—2 Pages.
Hitchiner's Foundry of the Future Foundry—Feb. 2000 John R. Wright—Editor—4-Pages.
Fred Ellin—Escast Inc. -Sarasofn, Florida Automatic Pattern Casting Machine 33rd Annual Meeting of the Investment Cast. 1985.
Adept Technologying Four Pages Adept Smart Modules Nov. 18, 2002.
Advertisement—Fansteel Patented Automated Wax Pattern Assembly Machine.
Derby Stephen
Ludwig Richard
Phipps Bruce S.
Puffer, Jr. Raymond H.
Heslin Rothenberg Farley & & Mesiti P.C.
MPI Incorporated
Tran Len
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