Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Reexamination Certificate
2000-03-14
2001-06-12
Dang, Hung Xuan (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With antiglare or shading
C351S057000, C351S128000
Reexamination Certificate
active
06244704
ABSTRACT:
BACKGROUND OF THE PRESENT INVENTION
The present invention relates to shelter frame for eyeglasses, and more particularly to a universal shelter frame employed with an adjustable bridge arrangement which is adjustably arranged to fittingly and easily attach the shelter frame to different kinds of primary spectacle frame.
An auxiliary shelter frame is widely used today. A conventional shelter frame such as sunglasses is constructed to detachably mount on shortsighted or longsighted eyeglasses so that wearer does not need to pay for and carry another shortsighted or longsighted sunglasses. The conventional shelter frame generally comprises two lens frames for mounting two auxiliary lenses, a bridge connected between the two lens frames, and a plurality of clipping claws for mounting the shelter frame on a primary spectacle frame. However, the conventional shelter frame has the following drawbacks:
1. A wearer has difficulty to mount the conventional shelter frame on a primary spectacles frame because the conventional shelter frame requires both hands to operate the clipping claws in order to correctly align and clip the shelter frame on the primary spectacles frame. The mounting operation is based on the wearer's experience.
2. Each conventional shelter frame is custom made to fit a corresponding style and size of primary spectacle frame wherein the size and shape of the shelter frame must be the same as that of the primary spectacle frame. So, when a wearer changes his or her primary spectacle frame, he or she must buy another corresponding shelter frame.
3. The conventional shelter frame is attached to the primary spectacle frame merely by clipping its claws on the lens frames of the primary spectacle frame. Accordingly, although the conventional shelter frame must be made to perfectly fit the primary spectacle frame, the claws may still accidentally detach from the primary spectacle frame during exercise and sporting activities.
4. The conventional shelter frame requires both hands operation for aligning the shelter frame on the primary spectacle frame in position and mounting on the primary spectacle frame. It is dangerous that the wearer needs both hands to operate the conventional shelter frame especially while he or she is driving.
SUMMARY OF THE PRESENT INVENTION
A main object of the present invention is to provide a universal shelter frame employed with an adjustable bridge arrangement, which is adjustably arranged to fittingly attach the shelter frame to different kinds of primary spectacle frame.
Another object of the present invention is to provide a universal shelter frame with an adjustable bridge arrangement, wherein the user can easily attach the universal shelter frame to the primary spectacle frame with one hand, even when the primary spectacle frame is still wearing on the user's face.
Another object of the present invention is to provide a universal shelter frame with an adjustable bridge arrangement, wherein the user can easily detach the universal shelter frame from the primary spectacle frame with one hand, even when the primary spectacle frame is still wearing on the user's face.
Another object of the present invention is to provide a universal shelter frame with an adjustable bridge arrangement, wherein after the universal shelter frame is attached to the primary spectacle frame, the adjustable bridge arrangement can enhance the attachment of the universal shelter frame on the primary spectacle frame by pressing the claws against the lens frame of the primary spectacle frame.
Another object of the present invention is to provide a universal shelter frame with an adjustable bridge arrangement, wherein since the adjustable bridge arrangement produces an outward force pressing the inner claws of the universal shelter frame against the primary spectacle frame, the outer claws of the conventional shelter frame can thus be eliminated in the present invention.
Another object of the present invention is to provide a universal shelter frame with adjustable bridge arrangement, which can reduce the possibility of scratching the lenses by the clipping claw because lesser clipping claws are required in the present invention.
Another object of the present invention is to provide a universal shelter frame with adjustable bridge arrangement wherein the wearer can easily make his or her favorite sun lenses according to his or her own original primary spectacles.
Accordingly, in order to accomplish the above objects, the present invention provides a universal shelter frame for attaching to a primary spectacle frame having two primary lenses mounted thereon, wherein the universal shelter frame comprises:
a pair of shelter lenses each having an inner side facing with each other;
a pair of connecting members which are affixed to the two inner sides of the two shelter lenses respectively; and
an adjustable bridge arrangement connected between the two shelter lenses together for supporting the two shelter lenses apart and forming a bridge distance between the two shelter lenses, wherein the bridge distance is normally longer than a distance between the two primary lenses of the primary spectacle frame, wherein the adjustable bridge arrangement comprises at least one compression unit for enabling the adjustable bridge arrangement to be compressed to contract the bridge distance in order to mount the shelter frame on the primary spectacle frame by attaching the two connecting members to two inner edges of the primary lenses of the primary spectacle frame respectively, moreover the contracted adjustable bridge arrangement provides an extending force to press the two connecting members outwardly against the two inner sides of the two primary lenses so as to firmly mount the shelter frame on the primary spectacle frame.
REFERENCES:
patent: 5801804 (1998-09-01), Dennise
Chan Raymond Y.
Dang Hung Xuan
David and Raymond Patent Group
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