Patents by Inventor Karl L. E. Kron

Karl L. E. Kron 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).

  • Transient protection unit
    Patent number: 4698722
    Abstract: Transient protection unit intended for connection to signal conductors for protecting equipment connected to the conductors against EMP and EMI. The unit includes primary protection components in the form of gas discharge tubes between the conductors and earth, and secondary protection components connected after the primary protection, in the form of filter components (L,C) or the like. All the components are mounted on a circuit board (6), the printed circuit pattern of which includes contact surfaces (10) for the unearthed electrodes of the tubes (X3-X5), against which contact surfaces the tubes are mounted by clamping with the aid of a metal member (18) serving as earth conductor.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: October 6, 1987
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventor: Karl L. E. Kron