Patents by Inventor Ronald K. Harper

Ronald K. Harper 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).

  • Suction muffler tube
    Patent number: 5220811
    Abstract: A muffler tube for use in a hermetically sealed compressor is disclosed. The muffler tube of the present invention has a roughened outer finish, and has a protuberance extending radially outwardly therefrom, which protuberance is received in a recess in the inner wall of the muffler. The combination of the roughened outer finish and the protuberance connection assist in preventing the muffler from turning on the tube, and from moving vertically on the tube.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: June 22, 1993
    Assignee: Tecumseh Products Company
    Inventors: Harold M. Harper, Ronald K. Harper, Tara C. Kandpal
  • Suction muffler tube
    Patent number: 5174127
    Abstract: A muffler tube for use in a hermetically sealed compressor is disclosed. The muffler tube of the present invention has a roughened outer finish, and has a protuberance extending radially outwardly therefrom, which protuberance is received in a recess in the inner wall of the muffler. The combination of the roughened outer finish and the protuberance connection assist in preventing the muffler from turning on the tube, and from moving vertically on the tube.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: December 29, 1992
    Assignee: Tecumseh Products Company
    Inventors: Harold M. Harper, Ronald K. Harper, Tara C. Kandpal