Patents by Inventor Ralph L. Nilsson

Ralph L. Nilsson 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).

  • Arrangement for bearing of a crankshaft
    Patent number: 4434756
    Abstract: The bearings of the crankshaft of an internal combustion engine are surrounded by rings of a high temperature resistant polymer, the rings being pressed into bearing seats in the upper and lower portions of the crankcase, the rings being formed with extensions to completely separate the upper and lower portions of the crankcase. The rings enable the use of plastic materials for the lower crankcase, by insulating the lower portion of the crankcase from heat in the upper portion thereof.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: March 6, 1984
    Assignee: EMAB Electrolux Motor Aktiebolag
    Inventors: Ralph L. Nilsson, Bo R. Rangert