Eyeglass frame having removable lens

Details Eyeglass frame having removable lens Eyeglass frame having removable lens

1981-08-14

1982-11-23

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Split rim mounting

351 90, G02C 108

Patent

active

043602525

ABSTRACT:
An eyeglass frame having removable lenses comprising of lens rings which are split into an upper and lower ring portion. Interposed between the upper and lower ring portions, and forming an integral part of the frame are positive actuating means to force open or draw closed the split lens rings to facilitate insertion and removal of lens. Several species of eyeglass frame are visualized. The preferred species utilizes a turnbuckle arrangement or a coupling post. Other species visualized are torsional spring action closure, helical spring action, and double loop retention.

REFERENCES:
patent: 2380281 (1945-07-01), Whipple
patent: 2652746 (1953-09-01), Shanks
patent: 2738709 (1956-03-01), Matthews et al.
patent: 3427098 (1969-02-01), Johnson
patent: 4176921 (1979-12-01), Matthias

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