Variable mold

Details Variable mold Variable mold

1992-05-22

1993-09-14

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

Female mold including tamping means or means utilizing mold...

249156, 425459, 425DIG119, B28B 129, B28B 120

Patent

active

052443760

ABSTRACT:
A mold for use in the production of ceramic vessels is disclosed herein having a rotatable potters wheel head supporting a mold including a porous surface base disc releasably held in coaxial and concentric relationship with respect to the wheel head and which detachably carries a mold ring thereon about the periphery of the basic disc to define an inner cavity in which the shaping process is performed. A top rim is detachably carried on the mold ring and includes a porous surface for supporting ceramic material which downwardly depends into the mold cavity where pressure is applied to the unsupported portion of the material by finger tips to form a desired shape.

REFERENCES:
patent: 86243 (1869-01-01), Newkumet
patent: 337632 (1886-03-01), Sheldon
patent: 578207 (1897-03-01), Burson
patent: 1377785 (1921-05-01), Odelberg
patent: 2080418 (1937-05-01), Gould
patent: 2503678 (1950-04-01), Moore
patent: 3965968 (1976-06-01), Alexandrov et al.
patent: 3980419 (1976-09-01), Franz
patent: 3994659 (1976-11-01), Takahashi

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