Boot and shoe making – Forms – Heated
Reexamination Certificate
2002-10-25
2004-01-13
Kavanaugh, Ted (Department: 3728)
Boot and shoe making
Forms
Heated
C012S12800F, C219S211000
Reexamination Certificate
active
06675421
ABSTRACT:
BACKGROUND OF THE INVENTION
It is uncomfortable to wear a wet shoe. Even a dryer may be provided to blow hot air into the interior of the shoe for drying the shoe. However, the hot air may overheat the leather to possibly deteriorate the leather quality. Meanwhile, after wearing a shoe for a long time, it will produce stinking odor to bother the shoe wearer and may also cause “air pollution” to the environment.
The present inventor has found the drawbacks of the conventional footwears and invented the present dehumidifier and deodorizer inserted in a shoe.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a shoe insert including: a housing insertable in a shoe interior and having perforations formed through the housing for directing moisture-laden air from the shoe interior into the housing, a gas-permeable filter cloth lined on an inside surface of the housing and containing activated carbon in the filter cloth for deodorizing the dirty air, a heating device secured in the housing, a moisture-absorbable dehydrating agent including silica gel filled in the housing for absorbing moisture as laden in the air entering the housing from the shoe interior for dehumidification or dehydration, and a deodorant also filled in the housing for further deodorizing the dirty air entering the housing from the shoe interior, thereby dehumidifying and deodorizing the shoe interior for a comfortable wearing of the shoe; and upon saturation of moisture by the dehydrating agent and oder gas (or vapor) by the deodorant, the heating device is actuated to heat the saturated dehydrating agent and deodorant for regeneration and re-use of the dehydrating agent and deodorant.
REFERENCES:
patent: 3906185 (1975-09-01), Gross et al.
patent: 4198765 (1980-04-01), Miyamae
patent: 4418434 (1983-12-01), Joh
patent: 5291669 (1994-03-01), Khoury et al.
patent: 5950323 (1999-09-01), Wroth et al.
patent: 5978996 (1999-11-01), Ullman
patent: 6202240 (2001-03-01), Tsung-Ping
patent: 2002/0083535 (2002-07-01), Fraden
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