Patents by Inventor Frank Carago

Frank Carago 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).

  • Refractory metal coated metal-working dies
    Patent number: 4571983
    Abstract: Metal-working dies which are typically made of steel are provided with substantially enhanced life by receiving a plasma-sprayed refractory metal coating which is subsequently compacted under conditions of minimum shear stress. The number of working cycles which can be obtained from a die before it is necessary to rework the die can be improved by as much as 3500%.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: February 25, 1986
    Assignee: United Technologies Corporation
    Inventors: Harold C. Sanborn, Frank Carago, John R. Kreeger