Articles with retractable traction elements
US8079160B2 · kind B2 · utility
53Cited by
57References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2008 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Jun 27, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2071/1283
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Articles of manufacture and articles of wear may include one or more retractable traction elements. A plurality of the retractable traction elements may be interconnected by a base member and may form an insert. Each of the retractable traction elements may include an extension inducing element and a ground (or other surface) contacting element. The extension inducing element may flex in response to an applied force and may cause the ground or other surface contacting element to extend and engage an underlying surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.