Patents by Inventor Carl F. Clemens

Carl F. Clemens 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: 4066802
    Abstract: A method of decalcomania in which a toner image pattern is formed on a transfer member which has been overcoated with an abhesive material. A polymeric sheet is interposed between the toner image and a cloth or other image receiving medium. The polymeric sheet assists in the permanent adherence of the toner imaging pattern to the cloth material or other medium when the composite is subjected to heat and pressure. The transfer member and method of its use are set forth. Another embodiment discloses the use of solvent to fix the image to a cloth material.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: January 3, 1978
    Assignee: Xerox Corporation
    Inventor: Carl F. Clemens
  • Patent number: 3965021
    Abstract: Toner for use in the development of latent electrostatic images comprised of a resinous material and a colorant in which the resinous material is comprised of at least two polymers, the first of which has a glass transition temperature of at least 20.degree.C., and the second of which has a glass transition temperature of at least 5.degree.C. lower than the glass transition of the first. The polyblend is either a graft or block copolymer comprised of the aforesaid polymers, or a physical blend of such polymers which are incompatible with each other, prepared by dissolving the polymers in a common solvent in which the polymers are about equally soluble, followed by vigorous agitation and removal of the solvent to provide an incompatible solid mixture of the polymer.
    Type: Grant
    Filed: September 15, 1970
    Date of Patent: June 22, 1976
    Assignee: Xerox Corporation
    Inventors: Carl F. Clemens, M. James Lenhard