Length-adjustable spectacle temple

Details Length-adjustable spectacle temple Length-adjustable spectacle temple

1989-04-12

1990-08-07

Dzierzynski, Paul M.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Temples

351119, G02C 520

Patent

active

049462687

ABSTRACT:
The invention relates to a spectacle temple adjustable in length and made of several parts. One of the temple parts has a sleeve-shaped section into which a second temple part is inserted so as to be adjustable in length. This second temple part has indexing recesses on its portion which is inserted into the sleeve. At least one of these recesses is accessible through a cutout in the sleeve for a spring element insertable into the sleeve. The spring element form-tightly engages with one portion into the accessible indexing recess and thereby latches the two spectacle parts to each other.

REFERENCES:
patent: 3544204 (1970-12-01), Bienenfeld
patent: 3545848 (1970-12-01), Sebastian
patent: 3584938 (1971-06-01), Lindblom
patent: 3649107 (1972-03-01), Hoffmaster et al.
patent: 3705761 (1972-12-01), Fujisawa
patent: 3873192 (1975-03-01), Anderson
patent: 4047809 (1977-09-01), Zuccatti
patent: 4153348 (1979-05-01), Walters et al.

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