Buckles – buttons – clasps – etc. – Separable-fastener or required component thereof – Including member having distinct formations and mating...
Reexamination Certificate
2002-02-08
2003-02-18
Sandy, Robert J. (Department: 3677)
Buckles, buttons, clasps, etc.
Separable-fastener or required component thereof
Including member having distinct formations and mating...
Reexamination Certificate
active
06519818
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a hook device. More particularly, the present invention relates to a hook device which can hook a heavy article safely.
A conventional safety hook is often soldered with a safety buckle. However, the conventional safety hook and the safety buckle are weakened by a heat treatment. Thus the conventional safety hook and the safety buckle will be broken while carrying a heavy article.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a hook device which can hook a heavy article safely.
Another object of the present invention is to provide a hook device which has a movable fastener surrounding a main body without any rivet so that a structure of the main body will not be weakened.
Another object of the present invention is to provide a movable fastener which has an elastic element to engage with a hook portion of a main body stably.
Accordingly, a hook device comprises a main body having a connection portion and a hook portion, and a movable fastener disposed on the main body. The movable fastener has a corrugated plate having two curved end portions and a U-shaped middle portion having a plurality of through holes, and an elastic element having a first L-shaped portion and a second L-shaped portion. The curved end portions of the movable fastener encloses the connection portion of the main body. The first L-shaped portion of the elastic element and the second L-shaped portion of the elastic element pass through the through holes of the U-shaped middle portion of the corrugated plate.
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Rodriguez Ruth C.
Sandy Robert J.
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