Warming shoe pad
US7775204B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 5, 2007 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Feb 5, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B7/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A device for warming a shoe is disclosed. An insole has a top cavity. A releasable shoe pad includes a top padding member and a recess between forward and rearward bottom portions. The device includes a thin metal member formed on the pad and including an intermediate conductive member, a forward conductive section extended from the conductive member, and a rearward conductive section extended from the conductive member, and a heater unit fastened in a space defined by the recess. The heater unit includes a fuel chamber, a combustion chamber filled with zirconia fibers, and a channel interconnected the fuel and the combustion chambers, the channel including fibers and a wick having one end immersed in the fuel chamber and the other end connected to the fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.