Patents by Inventor Goran Arvid Henning Ridderstrom

Goran Arvid Henning 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).

  • Surface treating attachment device
    Patent number: RE29247
    Abstract: A surface treating device such as a surface grinder in which power is transmitted to the operative elements of the assembly by a flowing gas, for example, air. The device is attached to a source of at least a partial vacuum, such as a vacuum cleaner. The motor fan unit of the vacuum cleaner together with a rotatable fan housed in the device form the power generating source which in turn operates the grinding member of the surface treating device in order to treat the work surface with an oscillating motion in a plane generally parallel thereto.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: June 7, 1977
    Assignee: Aktiebolaget Electrolux
    Inventors: Lars Gunnar Kilstrom, Goran Arvid Henning Ridderstrom