Patents by Inventor John Handzel

John Handzel 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).

  • Hardfaced article and process to provide porosity free hardfaced coating
    Patent number: 5236116
    Abstract: There is provided an improved coated composite article and an improved process for making the article. A cloth-like flexible preform is brazed to a metallic substrate to make the article. The article is then subjected to a uniform high pressure and temperature for sufficient time to remove porosity in the coating. The result is a fully dense coating, which is metallurgically bonded to the substrate without any porosity, which has improved physical properties, and which is capable of being polished to a surface finish of at least 4 RMS.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: August 17, 1993
    Assignee: The Pullman Company
    Inventors: Mukesh Solanki, John Handzel, Carl Coslow