Electricity: circuit makers and breakers – Interlocking – Between plural switches
Patent
1984-12-12
1986-01-21
Tolin, G. P.
Electricity: circuit makers and breakers
Interlocking
Between plural switches
361337, 361345, H02B 104
Patent
active
045659087
ABSTRACT:
Drawout switchgear apparatus characterized by a cell having a plurality of spaced fixed terminal stabs therein, an insulating shutter structure extending across the terminal stabs, a switchgear unit removably disposed in the cell and including terminal means for detachably engaging with the terminal stabs during movement into and out of the cell, obstruction means retractably mounted for preventing movement of the shutter when the switchgear unit is removed from the cell, and trigger means on the unit for retracting the obstruction means when the unit moves into the cell for exposing the stabs to the terminal means of the unit.
REFERENCES:
patent: 3096131 (1963-07-01), Adams
patent: 3133820 (1963-12-01), Norden
patent: 3170092 (1965-02-01), Adams
patent: 3483338 (1969-12-01), Bould
patent: 3840785 (1974-10-01), Olashew
patent: 4038585 (1977-07-01), Wolski
patent: 4285026 (1981-08-01), Clausing
patent: 4351990 (1982-09-01), Hesselbart
patent: 4384179 (1983-05-01), Milianowicz
patent: 4395602 (1983-07-01), Castonguay
patent: 4477701 (1984-10-01), Castonguay
patent: 4486815 (1984-12-01), Takahashi
Johns L. P.
Tolin G. P.
Westinghouse Electric Corp.
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