Spectacle frame having gear coupling

Details Spectacle frame having gear coupling Spectacle frame having gear coupling

1995-11-09

1997-01-07

Dang, Hung

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Connectors

351140, 16228, G02C 522, G02C 500

Patent

active

055922430

ABSTRACT:
A spectacle frame includes two side portions each having an extension. The extensions each includes two gears rotatably secured in the end portions and engaged with each other. Two legs each has end secured to the outer gears of the extensions as to allow the legs to be rotated in concert with the outer gears. The extensions each includes a curved notch formed in the free end and the legs each includes a projection slidably engaged with the curved notches for limiting the rotational movement of the legs.

REFERENCES:
patent: 3064530 (1962-11-01), Vigano
patent: 3422449 (1969-01-01), Rinnman
patent: 3574452 (1971-04-01), McLendon et al.
patent: 3582192 (1971-06-01), Gitlin et al.
patent: 3907410 (1975-09-01), Richmond et al.
patent: 4456346 (1984-06-01), Beyer
patent: 5321442 (1994-06-01), Albanese
patent: 5416537 (1995-05-01), Sadler

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