Bladder rings for tire vulcanization mold
US10632699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2016 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Sep 29, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/0659
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tire mold has a cavity with a flexible bladder disposed in a central portion of the cavity. The tire mold further includes a first ring connected to a first end of the flexible bladder, and a second ring connected to a second end of the flexible bladder. At least one of the first and second rings is configured to move between a first position and a second position. The flexible bladder is stretched to a maximum axial length when the first and second rings are in a first position. When the first and second rings are in the first position the sum of the first axial length and second axial length is greater than a space between the first ring and the second ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.