Patents by Inventor William Dewaine Cowie

William Dewaine Cowie 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: 7304266
    Abstract: An integrated laser shock peening coating includes film or a tape having an ablative medium layer spaced apart from a clear containment layer and a stationary clear liquid confining medium therebetween wherein the clear transparent to a laser beam used for laser shock peening. Two examples of the clear liquid confining medium are water and a mixture of water and agar without flowing a confinement curtain of fluid over the surface upon which the laser beam is firing. The intergrated laser shock peening coating may be a tape with an adesive layer being disposed on a first side ablative medium layer. A method of laser shock peening includes coating a substrate of an article with the intergrated laser shock peening coating and firing a laser beam on the coated substrate with sufficient power to form a region having deep compressive residual stresses extending into the substrate.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: December 4, 2007
    Assignee: General Electric Company
    Inventors: Seetha Ramaiah Mannava, William Dewaine Cowie