Patents by Inventor Karl R. T. Ljungstrom

Karl R. T. Ljungstrom 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).

  • Electronic scale
    Patent number: 4471847
    Abstract: An electronic scale in particular intended to be used as a platform scale. The scale comprises a sensor device having six supporting points which in a plan view form the corners of two triangles. The supporting points situated at the corners of one of the triangles are connected to a base whereas the scale pan is supported at the supporting points at the corners of the second triangle. The sensor device comprises a body which is so connected to the different supporting points that it is subject to a bending moment when the scale pan is loaded. The sensor device is also provided with electrical means for indicating the bending moment.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: September 18, 1984
    Assignee: Aktiebolaget Electrolux
    Inventor: Karl R. T. Ljungstrom