Method of manufacturing a self-inflating tire
US8322036B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2010 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Jan 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49538
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of constructing a self-inflating tire assembly includes molding in an air tube-receiving groove within a green tire carcass wall, the groove having an access opening, primary internal groove chamber and a secondary expansion groove chamber adjacent to and communicating with the internal groove chamber. A groove partial passageway is molded with the groove at a prescribed groove outlet location and extends from the groove partially through the tire carcass wall toward the tire cavity. A tire carcass wall barrier of reduced section between the partial passageway and the tire cavity is removed in a post-cure operation to create a through-bore from the groove to the tire cavity. A pump assembly inserts into the tube-receiving groove in a post-cure procedure with an outlet passage tube from a pump assembly outlet device extended through the through-bore to the tire cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.