Patents by Inventor Ture E. Hedstrom

Ture E. Hedstrom 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).

  • Safety device for lifts, hoists and like apparatus
    Patent number: 3934682
    Abstract: A safety device for lifts having a lift speed responsive means arranged to be activated when the lift moves at a speed higher than a predetermined speed and when thus activated causes a wheel to rotate, which wheel has a plate against which one or more brake shoes engage under a pressure force.
    Type: Grant
    Filed: November 5, 1973
    Date of Patent: January 27, 1976
    Inventor: Ture E. Hedstrom