Eaton Corporation

Eaton Intelligent Power Limited

Thomas Mark Whalen

David Curtis Turner

William J Jones

John Joseph Shea

Nathan James Weister

William John Jones

Frank Joseph Stifter, Jr

Kenneth D Kolberg

Brian Scott Jansto

Edward Anthony Prince

John J Shea

Louis F Grahor

Scott Ray Lanning

Percy J Lipsey

Jason K McMains

A lever member is for a trip assembly of an electrical switching apparatus. The electrical switching apparatus includes a housing, a signaling mechanism, separable contacts, and an operating mechanism structured to open and close the separable contacts. The trip assembly includes a mounting assembly disposed on the housing and a drive assembly. The drive assembly includes an actuator coupled to the mounting assembly and a plunger disposed on the mounting assembly and being cooperable with the operating mechanism. The lever member includes: a pivot portion structured to engage the mounting assembly; a first arm portion structured to engage the plunger; and a second arm portion disposed between the pivot portion and the first arm portion, the second arm portion being structured to engage the actuator.

Electrical switching apparatus, and trip assembly and lever member therefor

A trip unit wherein one sidewall of a trip unit housing assembly captivates a trip bar is provided. A captivation assembly is coupled, or directly coupled, to a trip unit housing assembly, thereby limiting tolerance buildup. The captivation assembly includes a trip bar bearing cap having a stop feature, thereby limiting tolerance buildup. The trip bar includes a radial stop paddle having hemispherical protrusions structured to contact the trip unit housing, thereby limiting tolerance buildup. The captivation assembly elements are incorporated into the trip unit housing assembly and captivates the trip bar in all but one axis, thereby limiting tolerance buildup and improving repeatability.

Trip unit with captive trip bar

An electrical switching apparatus includes a plurality of poles, each of the poles including a terminal. The terminal of a first one of the poles is proximate the terminal of a second one of the poles. A jumper is electrically connected between the terminal of the first one of the poles and the terminal of the second one of the poles. The jumper includes a plurality of heat transfer members, each of the heat transfer members being separated from others of the heat transfer members.

Jumper for electrically connecting electrical switching apparatus poles, and electrical switching apparatus including the same

A double-lever mechanism is for the trip actuator of a circuit breaker having a housing, separable contacts and an operating member for opening and closing the contacts. A trip bar opens the separable contacts in response to a trip condition, such as an overcurrent condition. The trip actuator assembly is a self-contained unit including an actuation subassembly comprising the double-lever mechanism and a coil and a plunger housed within an enclosure. First and second trip levers of the double-lever mechanism are pivotally coupled to first and second ends of the enclosure, respectively. In response to the trip condition, the plunger extends, pivoting the first trip lever which engages and pivots the second trip lever in order to actuate the trip bar. The double-lever mechanism provides a mechanical advantage by reducing actuating forces and plunger travel.

Double-lever mechanism, trip actuator assembly and electrical switching apparatus employing the same

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Cranberry Township, PA, United States of America

Thomas Mark Whalen