Traction altering footwear attachment device with resilient mounting ring and fiber ground engagement surface
US5966840A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Mar 3, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43C15/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A footwear attachment device for releasable mounting on primary footwear, e.g., a boot or shoe, to provide enhanced traction. The primary footwear has an upper including a toe portion and a heel portion, a sole including a fore-foot portion and a heel portion. The attachment device comprising an integral member having a mounting ring, a forefoot-sole engaging portion, a heel-sole engaging portion, and plural connecting webs. The attachment device is preferably molded of a resilient material. The forefoot-sole engaging portion and the heel-sole engaging portion of the device are each a generally planar member mounted within the bounds of the ring by the connecting webs. The ring is stretchable to enable it to encircle the upper of the primary footwear to releasably mount it, so that its forefoot-sole engaging portion is engagement with the forefoot portion of the sole of the primary footwear, and its heel-sole engaging portion is in engagement with the heel portion of that sole. The forefoot-sole portion and the heel-sole portion of the attachment device each have a ground engaging surface, e.g., a multitude of organized or disorganized fibers, plural ridges, grooves, cleats or comb…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.