Patents by Inventor H. Kenneth Ruhl

H. Kenneth Ruhl 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).

  • Gold ink coating of thermocouple sheaths
    Patent number: 5161297
    Abstract: A method is provided for applying a gold ink coating to a thermocouple sheath which includes the steps of electropolishing and oxidizing the surface of the thermocouple sheath, then dipping the sheath into liquid gold ink, and finally heat curing the coating. The gold coating applied in this manner is highly reflective and does not degrade when used for an extended period of time in an environment having a temperature over 1000.degree. F. Depending on the application, a portion of the gold coating covering the tip of the thermocouple sheath is removed by abrasion.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: November 10, 1992
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: H. Kenneth Ruhl