Patents by Inventor Donald James Linnstaedter

Donald James Linnstaedter 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).

  • Method and apparatus for producing better balanced tread components in pneumatic tires
    Patent number: 4004958
    Abstract: A method and apparatus for fabricating a laminated band of vulcanizable elastomeric material to be shaped and molded into a pneumatic tire. After the tire carcass is formed a specially prepared extruded strip of tread material of predetermined length is applied and lap spliced at its ends. Prior to its application to the carcass, the strip is longitudinally foreshortened or shrunk to form a slightly thickened portion midway between its ends. After the tire is vulcanized the thickened portion is located approximately 180.degree. circumferentially from the zone of the splice to counterbalance the weight at the zone of the lap splice.
    Type: Grant
    Filed: August 15, 1975
    Date of Patent: January 25, 1977
    Assignee: The General Tire & Rubber Company
    Inventors: Billy Joe Jones, Donald James Linnstaedter, Freydoun Monajjem