H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/233
H01H 9/38 (2006.01) H01H 1/38 (2006.01) H01H 33/70 (2006.01)
Patent
CA 1199049
ABSTRACT OF THE DISCLOSURE A female contact of an interrupter includes a number of flexible fingers in a cylindrical array defining a cavity toward the axis of which the fingers are biased. A pair of semi-annular refractory members are located at the free ends of the fingers and define a passageway which is continuous with the cavity. The members are not welded or brazed to the fingers and are, accordingly, transversely free-floating relative to the fingers; they can move laterally of the axis indepen- dently of the fingers, but are prevented from movement along the axis. When a male contact is out of the cavity and the passageway, the fingers act against the exterior of the members until facing stop surfaces on the members abut, setting the minimum size of the passageway, which is smaller than the diametric size of the male contact but larger than the diametric size of the cavity between contact buttons on the fingers. When the male contact is in the passageway, the stop surfaces separate and the fingers bias the members so that the wall of the passage- way intimately, slidingly engages the male contact. When the male contact is in the cavity the buttons intimately engage it, and outward flexing of the fingers disengages them from the members.
438116
Osler Hoskin & Harcourt Llp
S&c Electric Company
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