Mark W Jacobsen

US Patent:

7486499, Feb 3, 2009

Filed:

Jul 2, 2007

Appl. No.:

11/772386

Inventors:

Barry T. Rambo - Bradley SC, US
Judith Robin M. Prince - Edgefield SC, US
Mark W. Jacobsen - Spartanburg SC, US

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H01H 9/20
H01H 9/22

US Classification:

361609, 361605, 361608, 200 5017, 200 5021

Abstract:

A securing mechanism is provided for an electrical switching apparatus, such as a circuit breaker, which is movable into and out of an installed position within a switchgear enclosure. The securing mechanism includes a mount coupled to the circuit breaker, and a movable assembly movably coupled to the mount and including an engagement member. The movable assembly moves among first and second positions corresponding to the circuit breaker not being fully installed within the switchgear enclosure and being disposed in the installed position, respectively. When the circuit breaker is moved toward the installed position, the engagement member engages the switchgear enclosure and moves the movable assembly toward the second position, in which the engagement member securely engages the switchgear enclosure to resist undesired movement of the circuit breaker with respect to the switchgear enclosure.

US Patent:

7869192, Jan 11, 2011

Filed:

May 15, 2009

Appl. No.:

12/466969

Inventors:

Mark W. Jacobsen - Spartanburg SC, US
Jaymie L. Davenport - Hodges SC, US
Barry T. Rambo - Bradley SC, US

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H02B 1/26
B02B 1/04

US Classification:

361605, 361627, 361631, 361634, 361643, 361647, 361652, 361673, 24822021, 24822211, 248 271, 200293, 200294, 200400, 200 5011, 200 5001, 439119, 439267, 439275, 439651

Abstract:

An electrical switching apparatus mounting apparatus includes a base with a planar portion having a first side and an opposite second side. A number of first adjustable members are coupled to the opposite second side. Each of the first adjustable members includes a first end and an opposite second end. A number of second adjustable members are coupled transverse to the first adjustable members and include a first end and an opposite second end. At least one of the first end and the opposite second end of at least one of the first adjustable members and the second adjustable members is adjustable generally toward or generally away from the base. At least one of the first end and the opposite second end of the at least one of the first adjustable members and the second adjustable members is coupled to a number of walls of a switchgear enclosure.

US Patent:

7881044, Feb 1, 2011

Filed:

Jun 4, 2009

Appl. No.:

12/477956

Inventors:

Mark William Jacobsen - Spartanburg SC, US
Judith Robin Prince - Edgefield SC, US
Barry Tuck Rambo - Bradley SC, US

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H01H 9/20
H01H 9/22
H02B 5/00

US Classification:

361608, 361605, 361606, 361609, 200 5017, 200 5021, 200 5024, 200 5026, 200240, 200605

Abstract:

A dampening mechanism for an electrical for an electrical switching apparatus, such as a draw-out circuit breaker, includes a mounting bracket coupled to the circuit breaker, a pivot member, at least one biasing element, and a damper. The circuit breaker is movable into and out of an installed position within a switchgear enclosure. The pivot member pivots between first and second positions corresponding to the circuit breaker not being fully installed and being disposed in the installed position, respectively. The biasing element biases the pivot member toward the first position. When the circuit breaker is moved toward the installed position, the second end of the pivot member engages at least one of a back panel and a ledge of the enclosure, thereby pivoting the pivot member toward the second position. When the pivot member is disposed in the second position, the damper is biased against the ledge of the enclosure to dampen undesired vertical motion of the circuit breaker.

US Patent:

7019230, Mar 28, 2006

Filed:

Aug 3, 2005

Appl. No.:

11/196357

Inventors:

Ronald E. Vaill - Irwin PA, US
Mark W. Jacobsen - Spartanburg SC, US
Judith Robin M. Prince - Edgefield SC, US
Barry T. Rambo - Bradley SC, US
David M. Garbulinski - Mars PA, US
Larry E. Yonce - Greenwood SC, US

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H01H 9/00

US Classification:

200 5024, 200 5021

Abstract:

A racking device performs a circuit breaker racking operation. The racking device includes a base with wheels and a brake to facilitate moving the racking device and positioning it with respect to a switchgear cabinet. An elongated tubular member extends substantially vertically from the base. A self-contained counter-balanced power module includes an enclosure having a pair of opposing openings for receiving the elongated tubular member, and a counterweight system for counter-balancing the power module. An actuator including a motor, a ball spline and a torque member moves a linkage assembly having an end effector with a negator spring that positively engages the circuit breaker. A switch module actuates the actuator from a remote location in order to move the linkage assembly and thus the circuit breaker to perform the racking operation from the remote location. Complicated field programming of the power module is not required.