Press for pressing potlike articles from ceramic powder

Details Press for pressing potlike articles from ceramic powder Press for pressing potlike articles from ceramic powder

1977-08-15

1979-01-09

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Means to create a vacuum or apply fluid pressure within a...

425417, 249 65, B30B 502, B28B 300

Patent

active

041336267

ABSTRACT:
A press is disclosed for forming and shaping from ceramic powder articles ving a perimetrical leg-like portion. The press has an upper die and a lower mold, the latter having a central cavity closed at the top by a flexible membrane for receiving ceramic powder thereon. When the upper die closes on the mold, the membrane flexes to fit against the inside of the mold chamber. The mold chamber has flexible membrane walls which are forced inwardly by fluid pressure to shape and compress the perimetrical portions of the blank and upon release of the fluid pressure withdraw to permit removal of the finished blank.

REFERENCES:
patent: 2290910 (1942-07-01), Jeffery
patent: 2449407 (1948-09-01), Mulholland
patent: 3034191 (1962-05-01), Schaefer et al.
patent: 3239591 (1966-03-01), Wendt
patent: 3588080 (1971-06-01), Wallick
patent: 3594877 (1969-10-01), Suda et al.
patent: 3618179 (1971-11-01), Anderson et al.
patent: 3664799 (1972-05-01), Wallick et al.
patent: 4043724 (1977-08-01), Schubart
patent: 4057383 (1977-11-01), Bettonica

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