Patents by Inventor Paul C. Swanton

Paul C. Swanton 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: 5087946
    Abstract: A fuser roll including a hollow cylinder having a relatively thin wall, the cylinder being a plastic composition reinforced with a conductive fiber filler, the plastic composition having a resistivity between 0.5 and 0.05 ohm.cm, the cylinder having an outside and an inside surface and enclosing ambient air, a back up roll disposed in an engaging relationship with the outside surface of the hollow cylinder defining said nip, a heating element disposed within said relatively thin wall, the heating element being said conductive fiber filler, the conductive fiber filler also providing the mechanical reinforcement of the hollow cylinder, and an additive, the additive being part of the plastic composition, the additive providing a release layer on the outside surface of the cylinder, the additive being a fluorocarbon at approximately 0.25 percent by weight.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: February 11, 1992
    Assignee: The United States of America as represented by Director, National Security Agency
    Inventors: Edul N. Dalal, Paul C. Swanton
  • Patent number: 4883941
    Abstract: An instant-on fuser having a cylindrical, relatively thin fiber wound cylinder supporting a resistance wire, heating foil, or printed circuit secured on the outside surface of the cylinder or embedded to the surface of the cylinder. The interior of the cylindrical tube is filled with air, and the wire, heating foil or printed circuit is connected to electrical leads extending through caps on the ends of the cylindrical support. The fuser is fabricated from the cylinder outward to the final step of applying a release agent on the outer surface.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: November 28, 1989
    Assignee: Xerox Corporation
    Inventors: Robert G. Martin, Paul C. Swanton
  • Patent number: 3954465
    Abstract: An electrophoretic imaging process wherein a suspension of particles in a carrier liquid are placed between a photoconductive electrode and a second electrode. With an electrical field applied between the photoconductive electrode and the second electrode the photoconductor is exposed to imagewise radiation which causes particles on the surface of the photoconductive electrode to be driven away in image configuration by charge exchange with the photoconductive electrode. The migrating particles form a negative image on the second electrode leaving a positive image behind on the photoconductive electrode.
    Type: Grant
    Filed: August 19, 1974
    Date of Patent: May 4, 1976
    Assignee: Xerox Corporation
    Inventors: John B. Wells, Paul C. Swanton, John W. Weigl, Edward Forest