Patents by Inventor William L. Karpen

William L. Karpen 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: 4128487
    Abstract: A coating bath containing sodium and/or potassium silicate is stabilized and its useful life prolonged by the additions of sodium or potassium hydroxide in amounts at least substantially equal to that required to compensate for the amounts of CO.sub.2 or CO.sub.3 anions introduced into the bath which, in reacting with the hydroxide formed by the hydrolysis of the silicate to form carbonates, upsets the hydrolysis equilibrium leading to further hydrolysis of the silicate. Similarly, a quantity of hydroxide is added to compensate substantially for other reactive species which significantly affect the hydrolysis equilibrium of the silicate.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: December 5, 1978
    Assignee: Carpenter Technology Corporation
    Inventor: William L. Karpen
  • Patent number: 4088585
    Abstract: A dry-film, water-base lubricant is provided for coating metallic workpieces for use in cold forming operations comprising MoS.sub.2 powder, hydroxyethyl cellulose, and sodium and/or potassium silicate. A process for applying this lubricant and a lubricated workpiece are also provided.
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: May 9, 1978
    Assignee: Carpenter Technology Corporation
    Inventor: William L. Karpen