Mary B Groff, 71783 Tri Cities Farm Rd, Winchester, TN 37398

7140702, Nov 28, 2006

Dec 21, 2001

10/027458

Eldridge R. Byron - Murfreesboro TN, US
Gregory O. Motley - Smyrna TN, US
Mary B. Groff - Winchester TN, US

Square D Company - Palatine IL

A47B 53/00

312296, 3122231, 312236, 312283, 312329

A medium voltage controller for electrical equipment, such as motors, transformers, reactors, and capacitors, having an arc resistant cabinet, swaged internal electrical connections, a one-piece self-aligning withdrawable finger cluster, a pull-out instrument compartment, a load discharge device, cast fuse holders, disconnect switch, a switch illuminator, low power current transformers, and an optical temperature measuring system. The arc resistant cabinet relies on the pressure generated by an arc fault to provide the sealing action to contain the fault forces. The cabinet's rear panels are inside the cabinet and the panel lips mate to edges of the cabinet opening. The front doors each have a series of latching tabs along one side and a hinge along the opposing side. A dimple-in-a-dimple joint provides shear strength for panel joints. At the top of the cabinet is an exhaust vent.

2003011, Jun 26, 2003

Dec 21, 2001

10/027554

Eldridge Byron - Murfreesboro TN, US
Eugenio Alvarez - Murfreesboro TN, US
Brian Walker - Lebanon TN, US
Mary Groff - Murfreesboro TN, US

H01R004/66
H01R013/648

439/095000

A medium voltage controller for electrical equipment, such as motors, transformers, reactors, and capacitors, having an arc resistant cabinet, swaged internal electrical connections, a one-piece self-aligning withdrawable finger cluster, a pull-out instrument compartment, a load discharge device, cast fuse holders, disconnect switch, a switch illuminator, low power current transformers, and an optical temperature measuring system. The load discharge device is compact and provides fast earthing of the load-side cables. The device has a scissors-type linkage and is charged by compressing at least one spring. The scissors-linkage, when in an almost-straight-line alignment, holds the compressed springs. An actuator moves one member of the scissors-linkage, thereby removing the holding alignment of the scissors-linkage. The springs move an earthing bar at high acceleration to ground the line-side cables.