Heated blades for wax melting

Details Heated blades for wax melting Heated blades for wax melting

2005-10-25

2005-10-25

Lin, Kuang Y. (Department: 1725)

Metal founding

Process

Shaping a forming surface

C164S035000, C164S412000, C219S229000, C228S051000

Reexamination Certificate

active

06957686

ABSTRACT:
A knife for heating the wax on the surface of a wax runner. The knife as a surface which is recessed in the center of the surface to permit melted wax to flow up into the recessed area and not flow away from the knife. Alternately, conformal heating surface which melts only that portion of the wax runner to which the pattern gate is affixed. Additionally an electrical circuit is provided which includes a heater and a temperature controller to limit the temperature at which wax is melted.

REFERENCES:
patent: 3084649 (1963-04-01), Parstorfer
patent: 3943323 (1976-03-01), Smith et al.
patent: 4081658 (1978-03-01), Ammann
patent: 4090656 (1978-05-01), Sato et al.
patent: 6039241 (2000-03-01), Tucker et al.
patent: 2002/0023909 (2002-02-01), Usui
patent: 2003/0098136 (2003-05-01), Ludwig et al.

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