Molded insulated shoe footbed and method of making an insulated footbed
US8069587B2 · kind B2 · utility
4Cited by
35References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jul 9, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B17/003
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A shoe footbed 10 made by first molding a shape-retaining layer 12 into a contoured condition. After the shape-retaining layer 12 has been molded, a layer of thermal insulation 14 is placed on top of the molded layer 12. A conforming layer 16 and a fabric top layer 18 may be placed over the thermal insulation 14 and the shape-retaining layer 12. The inventive method of manufacture is particularly suited for making insulated footbeds that contain nonwoven webs of polymeric microfiber because damage to the fibrous web from heat and compression may be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.