Patents by Inventor Harold R. Otis

Harold R. Otis 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: 4379807
    Abstract: A magnet wire suitable for use in hermetic motors comprising a conductor wire, an insulating intermediate layer, a polyamide outer layer, and an organic polymeric lubricant coating on the outer layer. The lubricant has a pour point below about 15.degree. F. (-9.degree. C.) and wets the outer layer. A preferred lubricant is soluble in monochlorodifluoromethane and in dichlorodifluoromethane, and comprises a saturated C.sub.2 -C.sub.4 ether of ethylene oxide and 1,2-propylene oxide copolymers. A particularly preferred lubricant has a viscosity of about 100 to 400 SUS (21 to 87 centistokes) and a pour point of about -60.degree. F. (-51.degree. C.).
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: April 12, 1983
    Assignee: Rea Magnet Wire Co., Inc.
    Inventors: Harold R. Otis, Charles E. Blake
  • Patent number: 4216263
    Abstract: A new and improved magnet wire is provided comprising a copper or aluminum conductor, a basecoat consisting of at least one layer of insulating material around and along the length of the conductor and a polyundecaneamide or polydodecaneamide topcoat around and along the length of the basecoat, wherein the topcoat comprises from approximately 5 to 95% of the total coating thickness.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: August 5, 1980
    Assignee: Rea Magnet Wire Co., Inc.
    Inventors: Harold R. Otis, Charles E. Blake, Paul J. Schmidt