Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se
Reexamination Certificate
2006-01-10
2006-01-10
Davis, Robert (Department: 1722)
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
C425S17480R, C425S17480E
Reexamination Certificate
active
06984352
ABSTRACT:
A mold for uniformly heating working material to form a workpiece using a microwave oven. Uniform heating of a workpiece of variable thickness may be obtainied in a microwave oven with a uniform electric field in its cavity if the mold material is selected to have a dielectric constant and a thermosensitivity equal to that of the working material. The thermosensitivity of a material is its dissipation factor divided by the product of its density and specific heat. Uniform heating of a uniformly thick workpiece can be obtained in a conventional microwave by selecting the mold material to have a relative thermosensitivity equal to that of the working material. The relative thermosensitivity of a material is its dissipation factor divided by the product of its dielectric constant, density, and specific heat.
REFERENCES:
patent: 2407833 (1946-09-01), Jablonsky et al.
patent: 2421096 (1947-05-01), Vogt
patent: 2421097 (1947-05-01), Lakso
patent: 2438952 (1948-04-01), Te Grotenhuis
patent: 2595502 (1952-05-01), Aicher et al.
patent: 2626426 (1953-01-01), Bosomworth
patent: 2754546 (1956-07-01), Mason et al.
patent: 3294879 (1966-12-01), Jacobs
patent: 3475522 (1969-10-01), Garibian et al.
patent: 3519517 (1970-07-01), Dench
patent: 3777099 (1973-12-01), Levinson
patent: 3851131 (1974-11-01), Johnston et al.
patent: 4110139 (1978-08-01), Mashida
patent: 4268238 (1981-05-01), Marc
patent: 4269581 (1981-05-01), Ury et al.
patent: 4307277 (1981-12-01), Maeda et al.
patent: 4323745 (1982-04-01), Berggren
patent: 4441876 (1984-04-01), Marc
patent: 4454403 (1984-06-01), Teich et al.
patent: 4456806 (1984-06-01), Arimatsu
patent: 4466938 (1984-08-01), Gigl et al.
patent: 4477707 (1984-10-01), Kim
patent: 4481159 (1984-11-01), Itoh
patent: 4524037 (1985-06-01), Marc
patent: 4558198 (1985-12-01), Levendusky et al.
patent: 4617439 (1986-10-01), Lespinats et al.
patent: 4810846 (1989-03-01), Holcombe et al.
patent: 4851167 (1989-07-01), Marc
patent: 4880578 (1989-11-01), Holcombe et al.
patent: 4939330 (1990-07-01), Berggren et al.
patent: 4963709 (1990-10-01), Kimrey, Jr.
patent: 5082436 (1992-01-01), Choi et al.
patent: 5139407 (1992-08-01), Kim et al.
patent: 5166484 (1992-11-01), Young et al.
patent: 5202541 (1993-04-01), Patterson et al.
patent: 5258596 (1993-11-01), Fabish et al.
patent: 5290490 (1994-03-01), Nied et al.
patent: 5321222 (1994-06-01), Bible et al.
patent: 5406058 (1995-04-01), Lipp
patent: 5420404 (1995-05-01), Goodman et al.
patent: 5466144 (1995-11-01), Adams et al.
patent: 5521360 (1996-05-01), Johnson et al.
patent: 5593610 (1997-01-01), Minerich et al.
patent: 5607612 (1997-03-01), Held et al.
patent: 5609891 (1997-03-01), Delaunay et al.
patent: 5639518 (1997-06-01), Ando et al.
patent: 5659972 (1997-08-01), Min et al.
patent: 5804801 (1998-09-01), Lauf et al.
patent: 5811769 (1998-09-01), Schiffmann et al.
patent: 5813134 (1998-09-01), Min et al.
patent: 5844217 (1998-12-01), Hawley et al.
patent: 5961871 (1999-10-01), Bible et al.
patent: 6034363 (2000-03-01), Barmatz et al.
patent: 6241929 (2001-06-01), Akopyan
patent: 6365885 (2002-04-01), Roy et al.
patent: 6486455 (2002-11-01), Merabet
Davis Robert
Erickson & Kleypas L.L.C.
Luk Emmanuel
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