Patents by Inventor Goran A. H. Ridderstrom

Goran A. H. Ridderstrom 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).

  • Apparatus utilizing magnetic means for transferring articles to and from predetermined positions
    Patent number: 4181465
    Abstract: Apparatus for handling materials, such as robots, in which the transfer units are connected with drive that cause the swinging movement of the transfer units between two positions about a neutral position located therebetween. Retaining are disposed on the apparatus in the form of magnetic members for either engaging the respective transfer unit or repelling the same.
    Type: Grant
    Filed: April 25, 1978
    Date of Patent: January 1, 1980
    Assignee: Aktiebolaget Electrolux
    Inventor: Goran A. H. Ridderstrom