Bladder for shaping pneumatic tire
US3963394A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1975 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Jun 25, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/2635
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An expandable bladder for shaping a pneumatic tire, comprising a thick, substantially cylindrical center section having a multiplicity of convolutions perpendicular to the axis of the cylindrical section on the inner surface of said section, said convolutions providing local reductions in thickness and additional axial extensibility to the bladder, a pair of annular, beaded end sections extending inwardly from each end of the cylindrical center section, and reinforcing material extending through the center section and end sections to limit the axial extensibility of the bladder. This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.