The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 1981
Filed:
Mar. 09, 1979
Kazuo H Date, Torrance, CA (US);
Ronald A Wainio, Milwaukee, WI (US);
McGraw-Edison Company, Rolling Meadows, IL (US);
Abstract
A manual operator for a series-connected circuit interrupter and disconnect combination mounted within a switch gearing closure, which includes an external operating handle affixed to a common operating shaft for the interrupter and the disconnect, which is rotatable about its axis between a closed position and an open position. A quick make, quick break, interrupter operating mechanism includes a manual operating shaft which is rotatable about its axis between a closed position and an open position. An operating rod has one end pivotally connected to a lever affixed to the common shaft and an opposite end pivotally connected to a lever affixed to the interrupter operator shaft, so that when the common shaft is rotated between its closed and open positions, the interrupter operating shaft is correspondingly rotated between its closed and open positions. The operating rod is held in a toggled position at both its closed and open positions by a spring connected between the rod and the switchgear enclosure. A disconnect operating shaft which is rotatable about its axis between a closed position and an open position, is connected by a 'lost motion' linkage to be operated by the interrupter operating shaft, wherein, when the interrupter operating shaft is rotated from its open position, the disconnect shaft is rotated from its open position only after the interrupter has opened, and when the interrupter operating shaft is rotated from its closed position, the disconnect will close before the interrupter closes.