Vessel for duplicating dental models

Details Vessel for duplicating dental models Vessel for duplicating dental models

1992-04-24

1994-01-25

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Opposed registering coacting female molds

425120, 425192R, 425DIG11, 249 54, 249 93, 249 95, B29C 3312, A61C 1314

Patent

active

052811220

ABSTRACT:
A vessel for duplicating dental models has at least two mold halves which can be clamped together. The mold halves have elements for mutually centering and for securing the model to be duplicated, for example, a tooth stump or the like. The vessel further includes an intake funnel each for pouring in liquid silicone and refractory casting material. A foil insert is provided in the plane of separation of the two mold halves when the vessel is closed. The foil insert has a thickness which corresponds in size to the setting expansion of the refractory casting material. The model to be duplicated is located in the center axis of the vessel and extends approximately by half its length through the foil insert and is held in position by the foil insert.

REFERENCES:
patent: 2421698 (1947-06-01), Hordes
patent: 3074112 (1963-01-01), Bobrow
patent: 3137894 (1964-06-01), Butler et al.
patent: 4695254 (1987-09-01), Herrell
patent: 4904348 (1990-02-01), Domes et al.
patent: 5066213 (1991-11-01), Ferincz
patent: 5175008 (1992-12-01), Ueno

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