Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1987-05-07
1989-08-15
Chiesa, Richard L.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
264319, 425267, 425459, B28B 102
Patent
active
048572560
ABSTRACT:
Jiggering for ceramic ware is effected while providing a jiggering surface of a jiggering profile tool with a gas to produce a thin gas film between the jiggering surface and plastic clay. The gas film is formed by a gas fed from the outside of the jiggering surface and the jiggering profile tool is heated to 50.degree.-60.degree. C. High-temperature heating of the tool is dispensed with.
REFERENCES:
patent: 1430363 (1922-09-01), Dolley
patent: 1769529 (1930-07-01), Miller
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patent: 1850939 (1932-03-01), Miller
patent: 2384845 (1945-09-01), Miller
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patent: 2480062 (1949-08-01), Wahl et al.
patent: 2485159 (1949-10-01), Malarkey
patent: 2726433 (1955-12-01), Skunda
patent: 2876522 (1959-03-01), Johnson
References Checked Cited in Parent Case SN 785355.
Fujii Shigemi
Kumazaki Eisuke
Shigematsu Kazutoshi
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