Patents by Inventor Leslie Vernon Powell

Leslie Vernon Powell 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).

  • Tire and wheel assemblies
    Patent number: 4091854
    Abstract: A pneumatic tire and wheel assembly containing an enclosing means for a lubricating material. The enclosing means will release the lubricating material into the tire when the tire becomes deflated.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: May 30, 1978
    Assignee: Dunlop Holdings Limited
    Inventors: Tom French, Reginald Harold Edwards, Leslie Vernon Powell
  • Tire and wheel assemblies
    Patent number: 4077453
    Abstract: A pneumatic tire and wheel assembly containing an enclosing means for a lubricating material. The enclosing means will release the lubricating material into the tire when the tire becomes deflated.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: March 7, 1978
    Assignee: Dunlop Holdings Limited
    Inventors: Tom French, Reginald Harold Edwards, Leslie Vernon Powell
  • Tire and wheel assemblies
    Patent number: 4051885
    Abstract: A pneumatic tire and wheel assembly containing an enclosing means for a lubricating material. The enclosing means will release the lubricating material into the tire when the tire becomes deflated.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: October 4, 1977
    Assignee: Dunlop Holdings Limited
    Inventors: Tom French, Reginald Harold Edwards, Leslie Vernon Powell
  • Tire and wheel assemblies
    Patent number: 4007769
    Abstract: A pneumatic tire having a coating of lubricating material on the interior surface thereof to reduce friction between the contacting portions of the interior surfaces when the tire is used in a deflated condition. The coating may be on only the contacting portions of the internal surfaces which so come into contact, of which the following is a specification.
    Type: Grant
    Filed: October 29, 1975
    Date of Patent: February 15, 1977
    Assignee: Dunlop Holdings Limited
    Inventors: Leslie Vernon Powell, Reginald Harold Edwards