Pneumatic tires

US3946783A · kind A · utility

Assignee

• Dunlop GmbH · GB

Inventors

• Reginald Harold Edwards
• Geoffrey Lionel Coulter
• Alan Michael Dodd
• Michael J. Kenney · Milton, US
• Alan J. Bourne · Royal Sutton Coldfield, GB
• David Alexander Bird

Key dates

• Filing date: Dec 23, 1974
• Grant date: Mar 30, 1976
• Expiry date: Dec 23, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T152/10675
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A tire and wheel assembly having a lubricant to enable it to be operated in a deflated condition without destructive heating in which one or more ingredients of the lubricant composition are enclosed in an enclosing means, the other ingredient or ingredients of the composition being placed in the inflation chamber of the assembly. The enclosing means release the first ingredient or ingredients into the inflation chamber, upon loss of inflation pressure, to form the composition.