Metal founding – Process – Shaping a forming surface
Patent
1981-02-02
1983-08-02
Hampilos, Gus T.
Metal founding
Process
Shaping a forming surface
164 35, 164 45, 164249, 433213, B22C 702
Patent
active
043960545
ABSTRACT:
Process for making a multiple unit fixed prosthesis. A conventionally prepared wax bridge is separated into a plurality of segments, a plurality of brace members are partially interconnected between the segments, and an anchoring member having the general configuration of the wax bridge is prepared for attachment to the segmented bridge by first securing a different support member to each pontic and coping of the bridge and by temporarily securing the anchoring member to a preselected one of the pontics or copings. All of the support members are then permanently secured to the anchoring member by an adhesive that does not introduce distortion into the bridge as it hardens. The segments of the bridge are then re-integrated, the brace members are completely connected to the integrally-formed bridge, and a stabilizer bar is employed to interconnect the bracing members and the anchoring member so that the integrity of the wax bridge configuration is maintained throughout the otherwise conventional casting procedure that produces the multiple unit fixed prosthesis.
REFERENCES:
patent: 3695333 (1972-10-01), Costa et al.
patent: 3808687 (1974-05-01), Millet
patent: 4346750 (1982-08-01), Nemethy
Batten, Jr. J. Reed
Hampilos Gus T.
Smith Ronald E.
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