Patents by Inventor Donald B. Ruppel

Donald B. Ruppel 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).

  • Patent number: 4362592
    Abstract: A ply turn-up and stitching device for use with a tire building drum wherein the building drum supports a tire carcass thereon with ply stock or fabric wound thereon and wherein the fabric extends beyond the edges of the tire building drum. Separate means is provided to place tire beads onto the respective edges of the building drum. The ply turn-up device upon actuation moves a profiled cam to a predetermined position adjacent the drum and then actuates the turn-up device to perform a turn-up of the marginal edges of the ply stock or fabric over the tire beads followed by a stitching of the remaining fabric onto the tire carcass to complete the operation. On return of the ply turn-up device to its remote position, it carries the profiled cam away from the tire building drum to facilitate the removal of the drum.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: December 7, 1982
    Assignee: The B. F. Goodrich Company
    Inventor: Donald B. Ruppel