Force-adjustable and disconnectible connector for orthodontic he

Details Force-adjustable and disconnectible connector for orthodontic he Force-adjustable and disconnectible connector for orthodontic he

1984-05-01

1985-11-19

Peshock, Robert

Dentistry

Orthodontics

Including extra-oral force transmitting means

A61C 700

Patent

active

045539340

ABSTRACT:
A connector for orthodontic headgear includes a casing for a helical compression spring one end of which engages the head of a rod extending through the spring and through a sleeve which engages the other end of the spring. The sleeve is supported in an aperture in the end of the casing and is adjustable axially relative to the casing for adjusting the spring force. The connection is disconnectible by providing a metal clip securable to a headcap having legs engageable in grooves in the casing.

REFERENCES:
patent: 702805 (1902-06-01), Lindas
patent: 3526035 (1970-09-01), Armstrong
patent: 3772789 (1973-11-01), DeWoskin
patent: 4115921 (1978-09-01), Armstrong
patent: 4155161 (1979-05-01), Armstrong
patent: 4226589 (1980-10-01), Klein
patent: 4238188 (1980-12-01), Armstrong
patent: 4368039 (1983-01-01), Armstrong
patent: 4416625 (1983-11-01), Armstrong

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