Patents by Inventor Stephen C. Hatkevich

Stephen C. Hatkevich 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: 8015849
    Abstract: Electromagnetic forming can lead to better formability along with additional benefits. The spatial distribution of forming pressure in electromagnetic forming can be controlled by the configuration of the actuator. A type of actuator is discussed which gives a uniform pressure distribution in forming. It also provides a mechanically robust design and has a high efficiency for flat sheet forming.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: September 13, 2011
    Assignee: American Trim, LLC
    Inventors: Allen M. Jones, Dale E. Whetstone, Larry A. Wilkerson, Stephen C. Hatkevich
  • Publication number: 20100175446
    Abstract: Electromagnetic forming can lead to better formability along with additional benefits. The spatial distribution of forming pressure in electromagnetic forming can be controlled by the configuration of the actuator. A type of actuator is discussed which gives a uniform pressure distribution in forming. It also provides a mechanically robust design and has a high efficiency for flat sheet forming.
    Type: Application
    Filed: October 7, 2008
    Publication date: July 15, 2010
    Applicant: AMERICAN TRIM. L.L.C.
    Inventors: Allen M. Jones, Dale E. Whetstone, Larry A. Wilkerson, Stephen C. Hatkevich
  • Patent number: 6541296
    Abstract: The present invention provides a method of forming an electroluminescent circuit by screen printing. The method according to the invention includes screen printing a rear electrode pattern on a substrate, which is preferably a polyester sheet, screen printing a dielectric layer over the rear electrode pattern, screen printing a front electrode pattern on the dielectric layer, and screen printing a phosphor layer over the front electrode layer. The rear electrode pattern preferably includes a solid layer disposed upon the substrate and the front electrode pattern preferably includes a plurality of opaque lines separated by spaces. In an alternative embodiment, the method according to the invention includes screen printing the phosphor layer on the substrate, screen printing the front electrode pattern on the phosphor layer, screen printing the dielectric layer over the front electrode pattern, and screen printing the rear electrode pattern over the dielectric layer.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: April 1, 2003
    Assignee: American Trim, LLC
    Inventors: Louis R. Sherman, Allan G. Bruns, Robert N. Card, Frank J. Catanzarite, Stephen C. Hatkevich, Debra L. Mayberry, Treva C. Monnier, Roger S. J. Naguit, Michael E. Purdy, Jeffery D. Sanford