Eaton Corporation

Mark Allen McAfee

David Curtis Turner

Nathan James Weister

Lawrence Joseph Kapples

Douglas Charles Marks

Glen C Sisson

An adjustable carrier assembly is provided for an electrical switching apparatus such as, for example, a circuit breaker. The adjustable carrier assembly includes a carrier body having a first carrier member and a second carrier member pivotably coupled to the first carrier member. An adjustment mechanism is coupled to the carrier body, and a plurality of springs is disposed between the adjustment mechanism and the second carrier member. The springs apply a bias force on the second carrier member, and the adjustment mechanism is adjustable with respect to the carrier body in order to adjust the bias force.

Circuit breaker with adjustable spring assembly biasing

A spring guide is provided for a carrier assembly of an electrical switching apparatus such as, for example, a circuit breaker. The carrier assembly includes a carrier body, a plurality of movable contact arms pivotably coupled to the carrier body, and a plurality of contact springs. Each of the contact springs is disposed between a portion of the carrier body and a corresponding number of the movable contact arms. Each spring guide includes a guide member disposed between a corresponding one of the contact springs and the corresponding number of movable contact arms to maintains alignment therebetween. The guide member preferably includes a planar portion including a first side, which spans a pair of adjacent movable contact arms, and a second side, which includes a projection. The projection is disposed within the coils of the corresponding one of the contact springs.

Circuit breaker carrier assembly with spring guide

A trip mechanism having a hatchet plate disposed on a pivot pin assembly having a pivot pin member with at least three pivoting surfaces. First and second pivoting surfaces are located where the pivot pin member engages the supporting side plates. Thus, the pivot pin assembly may rotate in the traditional manner, i.e., both the hatchet plate and the pivot pin assembly rotate between the side plates. An additional pivoting surface is located where the hatchet plate engages the pivot pin assembly.

Redundant pivot trip latch

A door interlock assembly is for a draw-out circuit breaker assembly. A draw-out circuit breaker is housed within an enclosure including a door and includes a poleshaft operable between first and second positions corresponding to separable contacts being opened and closed, respectively. The door interlock assembly includes a pivot member coupled to the poleshaft and a door latch interconnected to the pivot member by a linkage, such as a threaded drive rod. The door latch pivots such that a first end thereof engages and locks the door of the enclosure when the poleshaft moves to the second position. An optional mechanical sensor assembly adapted to trip the circuit breaker when the door is positioned in any position other than closed, is also disclosed.

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Aliquippa, PA, United States of America

Mark Allen McAfee