Process for retreading or recapping tires
US4816095A · kind A · utility
Inventor
Key dates
| Filing date | Apr 22, 1985 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Apr 22, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D30/54
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for recapping tires includes the steps of placing a tread strip around the circumference of a used tire casing with a bonding media interposed between the strip and casing; covering the treadstrip with a high termperature nylon film having a plurality of perforations substantially uniformly distributed across the surface of said film; covering the tread strip and film by an envelope having a negative embossment of tread design in registry with a positive tread design on said tread strip; and curing said tread strip and bonding media at a temperature of at least substantially 300.degree. F. The high temperature nylon film has a thickness in the order of 0.068-0.085-inches. A plurality of perforations are spread across the surface of said film. These perforations are in the order of 1/16-1/8-inch in diameter and are separated from each other by a distance in the order of approximately 3/4 to 11/4-inches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.