Flip-down sunglasses

Details Flip-down sunglasses Flip-down sunglasses

1978-07-26

1980-02-05

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With antiglare or shading

2 13, 351 57, 351154, G02C 1300

Patent

active

041870069

ABSTRACT:
Flip down sunglasses suitable for use in athletic competition are provided. A fixed part is attached to the wearer's forehead by means of ear pieces and an adjustable strap. A movable part is pivotally mounted to the fixed part and carries a sun visor. The sun visor may be locked into position both vertically and horizontally by means of grooves carried on flexible arms joined to the fixed part to engage ribs carried on the movable part.

REFERENCES:
patent: 1181291 (1916-05-01), Clarke
patent: 1879216 (1932-09-01), Hannan et al.
patent: 1980101 (1934-11-01), Schneider
patent: 2616082 (1952-11-01), Creighton

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