Patents by Inventor David Alexander Bird

David Alexander Bird has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pneumatic tires
    Patent number: 3946783
    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.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: March 30, 1976
    Assignee: Dunlop Limited
    Inventors: Reginald Harold Edwards, Geoffrey Lionel Coulter, Alan Michael Dodd, Michael John Kenney, Alan John Bourne, David Alexander Bird