Methods and means for making dental castings and the like

Details Methods and means for making dental castings and the like Methods and means for making dental castings and the like

1975-06-09

1977-01-18

Hinson, Harrison L.

Metal founding

Process

Shaping a forming surface

164241, 164244, 164246, 164DIG4, B22C 902, B22C 704, B22C 700

Patent

active

040034232

ABSTRACT:
A pattern set-up especially useful for making prosthetic dental appliances is assembled by attaching a plurality of refractory casts to a support member so that adjacent casts along the length of the support member are circumferentially offset with respect to one another. The casts carry expendable patterns that are connected to the support member by gating systems laid down on faces of the casts. The support member has outward protrusions supporting the weight of the casts and may be formed by a plurality of segments fitted together in end-to-end relation.

REFERENCES:
patent: 3424227 (1969-01-01), Watts et al.
patent: 3648760 (1972-03-01), Cooper
patent: 3669177 (1972-06-01), Ingalls et al.
patent: 3756553 (1973-09-01), Ranz
patent: 3868986 (1975-03-01), Olsen

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