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.

Date of Patent:
Aug. 21, 1990

Filed:

Oct. 12, 1988
Applicant:
Inventor:

Ronald W Crookston, Trafford, PA (US);

Assignee:

Westinghouse Electric Corp., Pittsburgh, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 2001 / ;
Abstract

A molded case circuit breaker is provided with a line conductor having a U-shaped slot defining a pair of depending leg conducting portions and a peninsula portion. The U-shaped slot is adapted to receive a slot motor and also causes the current of the peninsula portion to flow in a direction opposite the direction of current flow in the movable contact arm to cause the contacts to be blown open during relatively high level overcurrent conditions. The peninsula portion is tapered outwardly, toward the base of the peninsula to increase the overall cross-sectional area of the conductor to minimize temperature rise. The tapered peninsula portion still allows a slot motor to be received in the U-shaped slot.


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