Patents by Inventor Jan Fivelstad

Jan Fivelstad 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: 6229690
    Abstract: The invention concerns a horizontally divided switchgear, including compartments for high voltage and for cable connection. The cable connection compartment is common to one or more switchgear cubicles and is a compartment separated from the high voltage compartment(s) of the cubicle(s). In the switchgear is included one or more switchgear cubicles defined by vertical (12, 13, 14) and horizontal (15, 16) walls. The cubicle is arranged with only high voltage equipment, while connection means (18) for incoming and outgoing current cables are arranged exteriorly underneath the lower horizontal wall (16) of the cubicle. Bushing means (17) for cable conections are arranged in the lower horizontal wall (16).
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: May 8, 2001
    Assignee: ABB AB
    Inventors: Jan Fivelstad, Christer Arnborg