Apparatus for retreading of vehicle tires
Abstract
Abstract Retreading of vehicle tires is accomplished by forming an assembly consisting essentially of a tire carcass having a circumferential face, profiled tread mans of elastomeric material superimposed upon the circumferential face and a bonding material between the carcass and the tread means. The assembly is confined in a flexible fluid-tight enclosure, the interior of the enclosure is exhausted of at least the major portion of entrapped air, and a pressure differential is established between the interior and the exterior of the enclosure in a sense exerting pressure upon the latter and expelling residual air confined between the circumferential face and tread means. The assembly is then vulcanized for permanently bonding the tread means to the circumferential face. An apparatus is also disclosed.
Inventors
- 👤 W Schelkmann
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |