Plastic article or earthenware shaping or treating: apparatus – Means forming a mold; or flask – per se – Including ram type feed of molding material or means to...
Patent
1991-09-24
1992-12-29
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Means forming a mold; or flask, per se
Including ram type feed of molding material or means to...
249 54, 249 82, 249111, 425180, 425555, B29C 3924
Patent
active
051750082
ABSTRACT:
A device for supplying plastic material into a flask under pressure and a flask with the device, which are used for preparation of a denture. The device includes a cylinder having the inside end communicated to a cavity in the flask, a piston slidably inserted in the cylinder, a spring urging the piston toward inside of the flask, a stopper restricting the outside stroke end of the piston, and a device for adjusting elastic force of the spring. The adjusting device preferably includes a spring receiver abutting against the outside end of the spring, a screw-mechanism for moving the spring receiver in the axial direction of the cylinder, and a handle member for operating the screw-mechanism.
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"SR-IVOCAP System" (by Ivoclar of Liechtenstein), QDT Journal, advertising pages. No date.
Chugoku Shiken Kabushiki Kaisha
Davis Robert B.
Woo Jay H.
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