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. 08, 1978
Filed:
Jan. 17, 1977
Kazuo H Date, South Milwaukee, WI (US);
Ronald A Wainio, South Milwaukee, WI (US);
McGraw-Edison Company, Elgin, IL (US);
Abstract
A compact combination vacuum interrupter and visible break disconnect switch, in which the interrupter is electrically connected in series with the disconnect. The interrupter is manually closed, and can be tripped manually or automatically on overcurrent or undervoltage line conditions by a quick make, quick break, trip-free operating mechanism. The disconnect is manually opened or closed by a separate operating mechanism, which is mechanically interlocked with the interrupter operating mechanism so that the disconnect cannot be opened when the interrupter is closed, or the interrupter cannot be closed when the disconnect is open. The disconnect can be padlocked in its open position. The interrupter is mounted integral with the movable contact of the disconnect on a pivotable, insulating support member of the disconnect, with the movable contact rod of the interrupter pivotably connected to the interrupter operating mechanism. When the interrupter is in its open position, the pivotal axis of the interrupter movable contact rod coincides with the pivotal axis of the disconnect insulating support member, so that, when the disconnect is opened, the interrupter is pivoted about the same axis as the disconnect movable contact while the interrupter contacts are maintained at their fully open position.