Patents Assigned to Frances S. Voke
  • Radiation cure of tire plies in a continuous operation
    Patent number: 4851063
    Abstract: The herein described invention relates to a preparing of tires where a part of the tire is cured by exposure to electron irradiation or other means of radiation which have the same curing effect on the part. The irradiation is effected in a continuous operation in which the source of radiation and said part are moved continuously relatively to one another.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: July 25, 1989
    Assignees: Mildred Kelley Seiberling, Frances S. Voke Buchholzer
    Inventor: Theophilus K. Seiberling
  • Radiation cure of tire elements
    Patent number: 4221253
    Abstract: Selected portions of a tire, either before or after assembly with other components of the tire, are exposed to electron irradiation to effect at least a partial cure of a portion thereof. This tire, with its precuring treatment is then molded and the curing of the tire is completed by conventional heat curing methods with sulfure present in the rubber.
    Type: Grant
    Filed: April 20, 1979
    Date of Patent: September 9, 1980
    Assignees: Mildred Kelly Seibering, Frances S. Voke
    Inventor: Theophilus K. Seiberling
  • Pre-curing bead wire coating
    Patent number: 4202717
    Abstract: Strands of steel bead wire or the like are individually surrounded with rubber and the rubber is then partially cured sufficiently by irradiation so that the rubber remains moldably plastic and the final cure will completely cure the rubber. Each bead core when completed is often enclosed in fabric. The completed bead assembly is incorporated in the carcass of a tire. When the tires, including the carcass, tread, etc., are cured, the rubber in the beads is completely cured and the beads are securely bonded to the balance of the tire.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: May 13, 1980
    Assignees: Mildred Kelley Seiberling, Frances S. Voke
    Inventor: Theophilus K. Seiberling