Patents by Inventor Charles E. Aldridge

Charles E. Aldridge 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).

  • Fuse housing of targeted percentage tetragonal phase zirconia and method of manufacture
    Patent number: 7172984
    Abstract: A ceramic fuse housing is provided for surface mount circuit protectors, wherein a selectively destructible fuse is at least partially retained within the fuse housing. The fuse housing being formed of between 80% to 90% alumina and 20% to 10% zirconia, wherein 5% to 25% of the zirconia is in a tetragonal phase.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: February 6, 2007
    Assignee: Heany Industies, Inc.
    Inventors: S. Scott Zolnier, Charles E. Aldridge, Clifford W. Rabidoux, Peter R. Mundt
  • Method of fabricating surface coated spherical slip joint for forming a sealed interface
    Patent number: 6904661
    Abstract: A surface coating for forming a sealed interface is formed on a substrate, without requiring subsequent finishing operations. The sealed confronting surfaces employ the same coating and can accommodate vibratory movement and high temperature corrosion. A mixture of metal powder and a non reactive ceramic grit are impacted on a substrate at a sufficient velocity to form a lenticular layer and at a sufficiently low temperature to preclude morphology change in the non reactive grit and chemistry of the metal powder.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: June 14, 2005
    Assignee: Heany Industries, Inc.
    Inventors: S. Scott Zolnier, Charles E. Aldridge, Clifford W. Rabidoux