Patents by Inventor Manfred Hansson

Manfred Hansson 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).

  • Patent number: 4446710
    Abstract: A metal can top rests on a tool seat for the purpose of riveting a pull-up ring to the metal can top. Riveting takes place with the aid of a dolly which moves back and forth relative to the tool seat. Transmitters are arranged in the tool seat to check that no foreign objects are present in it. Transmitters sense the movement of the dolly past a reference level as it moves towards the tool seat. In the riveting position the dolly presses the metal can top and associated pull-up ring against the tool seat, whereby the pull-up ring actuates a sensing pin and moves it to an indicating position which is sensed by a transmitter. The signals from the respective transmitters are received by a delay and control device.
    Type: Grant
    Filed: March 2, 1979
    Date of Patent: May 8, 1984
    Assignee: Platmanufaktur AB
    Inventors: Kjell Sallnert, Carl-Erik Fridh, Manfred Hansson