Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1992-03-05
1994-01-04
Wilson, John J.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433172, A61C 1312, A61C 13225
Patent
active
052755606
ABSTRACT:
A friction element particularly for anchoring one removable telescopable part of a dental prosthesis on another. The one part has an opening through it in which the friction element is disposed. The friction element has a shank in the opening and has a friction head with a friction surface above the part and at one end of the opening. The friction element is of resilient plastic material. The friction head has a tapering, conical or convex bottom side and the opening in the one part is correspondingly shaped. The shank of the friction element has radial tabs which resiliently engage the inside of the opening. The shank may be of a length and the opening may be so shaped that one friction tab is behind the opening and engages the other side of the one part for preventing removal of the friction element. A detent recess in the other part receives the friction head on the telescoping of the parts together.
REFERENCES:
patent: 1719314 (1926-09-01), Stern
patent: 3380161 (1968-04-01), Weissman
patent: 3990150 (1976-11-01), Giovannini
patent: 4348181 (1982-09-01), Dawson
patent: 4488875 (1984-12-01), Niznick
patent: 4518357 (1985-05-01), Brinkmann et al.
patent: 4957438 (1990-09-01), Bax
Cherichetti Cindy A.
Wilson John J.
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