Patents by Inventor Kjell Engberg

Kjell Engberg 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).

  • Electrical circuit module with sequentially actuated contact apparatus
    Patent number: 4305633
    Abstract: An electrical circuit module having sequentially actuated contact apparatus comprises at least two multiple contact devices (10, 11), each intended to be connected to a fixed contact device in an associated support frame, one of the multiple contact devices (11) having a larger play in the insertion direction relative to the module support plate (13), than does any other multiple contact device (FIG. 2).
    Type: Grant
    Filed: October 24, 1979
    Date of Patent: December 15, 1981
    Assignee: ASEA Aktiebolag
    Inventors: Kjell Engberg, Bjorn Ericson