Eyeglasses frame allowing replacement of lenses

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Continuous rim mounting

Reexamination Certificate

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Details

C351S083000

Reexamination Certificate

active

06224209

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a frame of a pair of eyeglasses that allows replacement of lenses.
2. Description of the Related Art
Eyeglasses are required for people suffering from myopia or hypermetropia. Sunglasses are popular as they may protect the eyes from being injured by strong sunlight and provide aesthetically pleasing effect. A device has been proposed to attach a pair of lenses for sunglasses to a pair of glasses to meet different end. Lenses for myopia or hypermetropia are inserted into eyewires of a frame of the glasses with each sunglasses lens attached to outer edge of the lenses for myopia or hypermetropia. A hanger rod is attached to a periphery of each sunglasses lens that is releasably attached to the main glasses by magnetic. Nevertheless, it is a burden to wear a pair of glasses with two pairs of lenses. Replacement of lenses by means of forcibly removing the lenses from the eyewires of the frame of the glasses and forcibly inserting new lenses into the eyewires of the frame are awkward and difficult.
SUMMARY OF THE INVENTION
It is a primary object of the present invention to provide a frame of a pair of eyeglasses that allows replacement of lenses.
In accordance with one aspect of the invention, a pair of glasses comprises a frame including two eyewires. A lens is removably received in each eyewire. A rod is pivotally mounted to a periphery of each eyewire and includes an end that is movable between a first position for retaining an associated lens in an associated eyewire and a second position allowing removal of the associated lens. A protrusion is formed on each eyewires for preventing excessive pivotal movement of each rod.
In accordance with another aspect of the invention, a pair of glasses comprises a frame including two eyewires. A lens is removably received in each eyewire. A rod is pivotally mounted between the eyewires and includes two ends. Each end of the rod being movable between a fist position for retaining an associated lens in an associated eyewire and a second position allowing removal of the associated lens. A protrusion is formed on one of the eyewires for preventing excessive pivotal movement of the rod.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 5373331 (1994-12-01), Vallalla et al.
patent: 5467148 (1995-11-01), Conway
patent: 6086199 (2000-07-01), Holland et al.

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