Plastic article or earthenware shaping or treating: apparatus – Means forming a mold; or flask – per se – Three part flask
Patent
1978-10-19
1980-08-19
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Means forming a mold; or flask, per se
Three part flask
425179, 249165, B29D 3100, B29C 116, A61C 1308
Patent
active
042182050
ABSTRACT:
A dental flask for use in molding full dentures includes bottom, middle and cover sections capable of being sealed together, either by screws for holding the bottom and cover sections to the middle section by screwing into threaded means in the middle section, or by external compressing means. The flask is of such a structure as to promote even transfer of heat to a synthetic organic polymeric plastic material for gum and palate portions of the denture and to teeth to be held thereby, and internally threaded sealing means are so located at sides of the flask as to apply sealing forces effectively and evenly when cover and bottom screws are tightened and are so located as not to interfere with molding of the denture or heat transfer to the plastic portion thereof during molding.
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patent: 3988094 (1976-10-01), McGowan
patent: 4013259 (1977-03-01), Tryon
Flint, Jr. J. Howard
Kramer Raymond F.
Teledyne Hanau Division of Teledyne, Inc.
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