Dentistry – Apparatus – Having gauge or guide
Patent
1994-09-23
1996-10-29
O'Connor, Cary E.
Dentistry
Apparatus
Having gauge or guide
433213, A61C 1900, A61C 1100
Patent
active
055690335
ABSTRACT:
A dental model for use with or without articulating devices, wherein the model has a front face and a rear face, at least one dowel pin affixed to the model and having a free end positioned outwardly from the rear face, a recess form nut having a bore which frictionally receives the free end, a support of rigid material having a proximal surface and a distal surface and positioned with the rear face of the model and the proximal surface of the support juxtaposed, the dowel pin with the form nut thereon removably extending through the support to position the free end adjacent the distal surface of the support, at least an outer portion of the form nut being exposed to view from the distal side of the support, and a shoulder on the outer portion of the form nut adapted for contact with a removal tool for removing the form nut from the dowel pin to leave the free end exposed through the distal side of the support whereby the free end becomes readily accessible for contact with an extraction tool for forcing the dowel pin inwardly of the distal surface of the support for removing the dowel pin and the die model from the support.
REFERENCES:
patent: 2042200 (1936-05-01), Torp
patent: 3498580 (1970-03-01), Wilson
patent: 3521354 (1970-07-01), Stern et al.
patent: 3553839 (1969-09-01), Gores
patent: 3896548 (1975-07-01), Zahn
patent: 3932939 (1976-01-01), Weissman
patent: 4129281 (1978-12-01), Cooper
patent: 4840565 (1989-06-01), Poveromo
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