Patents Assigned to Northwestern Public Service Company
  • Grounding device
    Patent number: 4103123
    Abstract: A procedure and apparatus for increasing the ease and safety of making grounding connections in electrical distribution systems having access areas including switch and fuse blades removable by hot stick operation. A grounding blade physically interchangeable with standard fuse and switch blades is provided with convenient connections for receiving a grounding cable or cables, so that either end of the blade, or both ends thereof, can be grounded, whereby to ground system components connected thereto.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: July 25, 1978
    Assignee: Northwestern Public Service Company
    Inventor: Lloyd B. Marquardt, Jr.