Louis F Grahor

7830232, Nov 9, 2010

Jan 6, 2009

12/349072

Louis F. Grahor - Allison Park PA, US
Roger W. Helms - Beaver Falls PA, US
Kimberley I. Morris - Moon Township PA, US
William M. Randal - Baldwin Township PA, US

Eaton Corporation - Cleveland OH

H01H 9/30
H01H 33/20

335201, 218148

A circuit breaker includes a conductor, a fixed contact connected to the conductor, and an arc runner disposed on the conductor adjacent the fixed contact. The arc runner includes a first portion abutting the fixed contact and a second portion disposed in a recess of the circuit breaker housing. The arc runner is adapted to draw an arc from the fixed contact. A circuit breaker operating mechanism cooperates with a movable contact for opening and closing the fixed contact and the movable contact. An arc chute is adjacent the arc runner. A trip unit cooperates with the operating mechanism to trip open the fixed and movable contacts.

8039770, Oct 18, 2011

Aug 5, 2008

12/185969

Brian J. Schaltenbrand - Pittsburgh PA, US
Mark A. Janusek - Pittsburgh PA, US
Craig J. Puhalla - Moon Township PA, US
Louis F. Grahor - Allison Park PA, US

Eaton Corporation - Cleveland OH

H01H 5/00

200400, 200401

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.

20060132270, Jun 22, 2006

Dec 21, 2004

11/019039

David Turner - Imperial PA, US
Louis Grahor - Allison Park PA, US
Jason McMains - Akron OH, US
Thomas Whalen - Cranberry Township PA, US

H01H 67/02

335132000

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.