Patents by Inventor Karl-Gustav O. Wahlstrand

Karl-Gustav O. Wahlstrand 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).

  • Centrigugal clutch
    Patent number: 4813525
    Abstract: A centrifugal clutch has a clutch drum and a strip therein elastically secured to a clutch center and transfers a driving torque by servo action. During normal torque transfer the strip drives in a pushing manner with servo action. Upon overload its driving point changes onto a shoulder provided with a pressure spring and the torque transfer becomes a pulling action with no servo action.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: March 21, 1989
    Assignee: Aktiebolaget Electrolux
    Inventors: Bo R. Rangert, Karl-Gustav O. Wahlstrand