Orthodontic headgear release assembly

Details Orthodontic headgear release assembly Orthodontic headgear release assembly

1977-08-25

1980-10-07

Mancene, Louis G.

Dentistry

Orthodontics

Including extra-oral force transmitting means

24201TR, A61C 700

Patent

active

042265894

ABSTRACT:
Safety-release tension-applying mechanism for use between an orthodontic facebow and a headstrap and the like therefor. The mechanism includes a pair of releaseably interengageable portions which, while engaged, are smoothly elastically shiftable relative to one another throughout a preselected tension range. These portions automatically release on the tension transmitted through the mechanism exceeding a predetermined maximum tension level.

REFERENCES:
patent: 1752619 (1930-04-01), Summerfeld
patent: 2452796 (1948-11-01), Skibsted
patent: 2518179 (1950-08-01), Quinby et al.
patent: 2940622 (1960-06-01), Kays
patent: 3439387 (1969-04-01), Churches
patent: 3686757 (1972-08-01), McVickers et al.
patent: 4115921 (1978-09-01), Armstrong

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