HEATED INNER SOLE AND BATTERY CASE FOR USE IN BOOT CONSTRUCTION

• US 3,859,496 A
• Filed: 11/15/1973
• Issued: 01/07/1975
• Est. Priority Date: 11/15/1973
• Status: Expired due to Term

• Current Assignee: Erik O. Giese
• Original Assignee: Erik O. Giese
• Inventors: Giese, Erik O.
• Primary Examiner(s): Albritton, C. L.
• Application Number:
  US05/416,209
• Time in Patent Office: 418 Days
• Field of Search: 219/211,527 128/383 36/2.6,2.5Y 136/181
• US Class Current: 219/211
• CPC Class Codes: A43B 3/34 with electrical or electronic arrangements
• CPC Class Codes: A43B 3/35 with electric heating arrangements
• CPC Class Codes: A61F 2007/0001 Body part
• CPC Class Codes: A61F 2007/0078 with a battery
• CPC Class Codes: A61F 7/007 characterised by electric heating
• CPC Class Codes: H05B 2203/036 Heaters specially adapted for garment heating

Abstract

A heated inner sole for use in a boot where the inner sole comprises a cellular plastic material overlaid by a fabric material having heating elements therebetween. The opposite side of the cellular material has a pressure sensitive adhesive thereon by which the inner sole may be affixed to the inside of a boot. The heating elements are connected by wiring to a battery contained in a battery case carried by slide means attached to the boot heel.

Claims

1. An electrically heated inner sole and battery carrying case construction adapted to be applied to a boot, comprising an inner sole having electrical heater elements embedded therein, a movable non-metallic slide adapted to be affixed to the exterior heel portion of a boot, first electrical contacts on said slide, a lead electrically connecting said slide and heating elements, a battery carrying case having a track therein for slidably engaging said slide, second electrical contacts on said case adapted to electrically engage a battery within said case and to engage said first contacts in a first position of said case on said slide and to be disengaged from said contacts in a second position of said case on said slide, and latch means on said slide for locking said case in said first and second positions.

2. An electrically heated inner sole and battery case construction according to claim 1 wherein said inner sole comprises in addition a layer of cellular polyurethane foam material, a pressure sensitive adhesive on one side of said layer of foam material, and a layer of fabric material on the side of said layer of foam material opposite said pressure sensitive adhesive with said heating elements positioned between said layer of fabric material and said layer of foam material.

3. An electrically heated inner sole and battery case construction according to claim 1 wherein said battery case has first and second indentations therein adjacent said track and wherein said movable slide has a single locking ledge Thereon for engaging either of said first and second indentations to lock said case on said slide in either of said first or second positions.

4. An electrically heated inner sole and battery case construction according to claim 1 wherein the portion of inner sole adapted to be positioned in the toe area of a boot has a greater concentration of heating elements embedded therein than in the remainder of the inner sole.