Movable contact arm and crossbar assembly and electrical switching apparatus employing the same
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United States of America Patent
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Oct 18, 2011
Grant Date -
Feb 11, 2010
app pub date -
Aug 5, 2008
filing date -
Aug 5, 2008
priority date (Note) -
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Abstract
A movable arm assembly is for an electrical switching apparatus including a stationary contact and an operating mechanism. The arm assembly includes a biasing member and an arm member having a first end, an opposite second end, a pivot point therebetween, and a portion having a longitudinal axis. A movable contact is disposed at or about the first end. The arm member engages a crossbar member at or about the pivot point such that the arm member can pivot from a first position to a second position. The biasing member engages the arm member at a point between the pivot point and the second end and includes a portion that engages and biases against a housings of the crossbar member. The longitudinal axis of the portion of the arm member is oriented generally parallel to the portion of the biasing member when the arm member is at the first position.
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