← Back to Patent Explorer
US4005531A Expired / Lapsed US ⏱️ 0.0 years remaining

Foot cooler

Assignee: Individual
•
Filing: 1975-08-11
•
Granted: 1977-02-01
•
Expires: 1995-08-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A method of preventing feet from becoming hot and muggy by a process which is practical, comfortable, and beneficial. The method permits the subject to move about outdoors in the hot sun and/or indoors in a non-airconditioned building, during the summer months without the feet becoming hot or muggy. The method cools the subject's feet while he is running, climbing, jumping, standing, or sitting still. The method does not limit the subject's ambulation, neither does it restrain his body movements, nor does it restrict his mobility to a specific geographical area. The method contemplates and includes within its scope a pair of `foot coolers` which consist of a pair of `cool shoes` specially constructed with high outer platform soles that contain sufficient insulation and adequate vacant spaced (chamber) to house a durable, removable, light-weight, `cool container` filled with a suitable, inexpensive refrigerant. The heat transfer from the feet above the separation of the inner sole passes through and on down to the `cool container` where it is absorbed by the chilly refrigerant thereby cooling the feet above the inner sole of the `cool shoe`. The method also increases the feet comfort of the subject by preventing the feet from expanding and by neutralizing the factors that cause feet perspiration and concomitant unpleasant feet odor. The present method of preventing hot and muggy feet and cooling hot and muggy feet, is also applicable to the utilization of a miniature, mechanical, refrigerating device that uses a pump manipulated by the movement of the feet and that contains the basic parts of generator, separator, condenser, evaporator, and absorber.

Inventors

  • 👤 Morton Weintraub
  • 👤 Bernard Gendelman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 20:37
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/34

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 74 words
A pair of cool shoes comprising: a high platform outer sole specially insulated within and specially constructed with a vacant chamber, which said chamber houses a durable, lightweight, removable container, which said container contains a chilly refrigerant that absorbs the heat transfer from the user's feet and passes it on down through the insufficiently insulated inner sole separating the user's feet from the cool container, to the chilly refrigerant contained within the said container.
Claim 2
Dependent Claim 74 words
A pair of cool shoes comprising: a high platform outer sole specially insulated within and specially constructed with a vacant chamber, which said chamber houses a durable, lightweight, removable container, which said container contains a chilly refrigerant that absorbs the heat transfer from the user's feet and passes it on down through the insufficiently insulated inner sole separating the user's feet from the cool container, to the chilly refrigerant contained within the said container.

References Cited (Backward Citations)

US1304915A Cited
US1596923A Cited
US3871117A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-02-01 1980-08-02 1981-02-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-02-01 1984-08-02 1985-02-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-02-01 1988-08-02 1989-02-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag