Footwear pad

Details Footwear pad Footwear pad

1999-06-28

2001-07-24

Kavanaugh, Ted (Department: 3728)

Boots, shoes, and leggings

Insoles

Laminated

C036S141000

Reexamination Certificate

active

06263592

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to a footwear, and more particularly to a healthful pad for use in the footwear.
BACKGROUND OF THE INVENTION
A shoe pad of the prior art is provided with a plurality of inlaid block magnets or spherical magnets, which are intended to promote the blood circulation in the feet of a wearer of the shoes. Such a healthful effect of the prior art shoe pad is achieved by magnetism of the inlaid magnets. However, the healthful effect of the prior art shoe pad is, in fact, not as good as expected, with the reason being that the inlaid magnets are not uniformly distributed, and that the magnetism of each inlaid magnet works alone. In other words, the healthful effect of the prior art shoe pad is compromised by the fact that all inlaid magnets of the prior art shoe pad can not be made to act together.
SUMMARY OF THE INVENTION
It is therefore the primary objective of the present invention to provide an improved footwear pad with a powerful and evenly-distributed magnetism for bringing about a healthful effect on user of the footwear pad.
It is another objective of the present invention to provide a footwear pad with not only magnetism but also an excellent elasticity and an excellent compressibility.
In keeping with the principle of the present invention, the foregoing objectives of the present invention are attained by a footwear pad comprising a resilient layer which is intended to provide the footwear pad with an excellent resiliency and an excellent shock-absorbing effect. The resilient layer is made of a plastic foam material and provided with a reinforcing layer, which is made of a tear-resistant cloth and adhered to the upper side of the resilient layer. The resilient layer is further provided with a magnetic layer which is made of a magnetic rubber sheet and adhered to the underside of the resilient layer. The magnetic layer is magnetized in accordance with the required magnetic strength at the time when the footwear pad is made. The footwear pad is thus provided by the magnetic layer with magnetism that is distributed uniformly and unidirectionally so as to promote effectively the blood circulation in the feet of a user of the footwear pad.


REFERENCES:
patent: 3641688 (1972-02-01), Von Den Benken
patent: 4510700 (1985-04-01), Brown
patent: 4800657 (1989-01-01), Brown
patent: 4843738 (1989-07-01), Masuda
patent: 5146698 (1992-09-01), Tilles
patent: 5233768 (1993-08-01), Humphreys
patent: 5976100 (1999-11-01), Greenawalt

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