Dentistry – Orthodontics – Bracket
Patent
1977-02-28
1979-12-18
Kinsey, Russell R.
Dentistry
Orthodontics
Bracket
339244B, 339249B, 24136B, 151 2A, 85 1L, A61C 700
Patent
active
041786874
ABSTRACT:
A clamp, particularly suitable for orthodontia, comprises a threaded screw member and a threaded nut member which is threadably engageable therewith. The screw member has a notch thereacross to receive a wire therethrough, the notch being directed generally towards one end of the thread on the screw. The notch opens on a surface of the screw for accepting a wire and has a first portion adjacent the opening which is defined by substantially parallel opposing walls, and has a second bottom portion which is adjacent the first portion and remote from the opening, the second bottom portion being generally V- or U-shaped and defined by inclined walls which are directed toward each other and toward the bottom of the notch. The screw member has a resilient quality so that when one of the screw and nut members is turned relative to each other so that the nut member intercepts a wire positioned through the slot, the wire is forced deeper into the second inclined portion of the notch so that the angle of inclination of the notch walls is increased, the wire is clamped by the members and the nut member is locked on the screw member.
REFERENCES:
patent: 2027415 (1936-01-01), Blackburn
patent: 2546395 (1951-03-01), Hubbard
patent: 3028671 (1962-04-01), Berger
patent: 3164900 (1965-01-01), Wallshein
patent: 3210818 (1965-10-01), Wallshein
patent: 3266364 (1966-08-01), Becker
Kinsey Russell R.
Wilson John J.
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