Patents Represented by Attorney D. S. Boles
  • Patent number: 4432036
    Abstract: A circuit breaker switchgear housing device having a stab positioning system whereby a draw-out circuit breaker having separable contacts is contained in the switchgear housing. A stab positioning system is utilized so as to precisely locate stabs so that a circuit breaker having contact clusters which are electrically attached to the circuit breaker contacts make accurate and uniform contact with the stabs. The stabs are generally a rectangular-shaped bar with one of the ends being rounded off. Cut into two sides of the stab and opposing each other are notches. The stab is inserted into a retainer or positioning washer which has a bayonet-type lock opening into which the stab is inserted and rotated 90.degree., thereby prohibiting axial movement of the stab with respect to the washer. A retainer or positioning washer having an opening slightly larger than the stab cross-section is used to rigidly position an inserted stab, prohibiting rotational movement with respect to the opening in the stab.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: February 14, 1984
    Assignee: Westinghouse Electric Corp.
    Inventors: Alexander Zwillich, Carl R. Merola, Stephen S. Ciccotelli