Bettcher Industries, Inc.

Joslyn Hi-voltage Corporation

Edward A Steele

Brian D Mather

Tom Remm

Josiah J Brinkerhoff

A thumbpiece or thumb support () positioned between a head assembly () and a handle assembly () of a power operated rotary knife (). The thumb support () includes a thumb supporting surface () to support a thumb of an operator's hand during operation of the power operated rotary knife (). The thumb support () comprises a base portion () and thumb supporting portion () including the thumb supporting surface (). The thumb support () further includes an interface assembly () between the thumb supporting portion () and the base portion () for relative pivotal movement between the thumb supporting portion () and the base portion ().

Pivoting thumb support for power operated rotary knife

In accordance with the present invention, a recloser assembly including three modular recloser units operating under the control of a controller. The recloser units are interchangeable and are suitable for use in a three phase power distribution system where three phase tripping is desired or each recloser unit may be operated independently as in a single phase power distribution system. For use in a three phase system, a gang rod mechanically couples pivoting actuation levers extending from a solenoid switching assembly of each of the recloser units. The gang rod insures that all three switching assemblies open and close in unison, thus, each power is transmitted by all three recloser units or power is not transmitted by any of the three recloser units. For single phase power distribution operation, the gang rod is removed and the recloser units operate independently. Each recloser unit includes a cube shaped base, a tapered cylindrical support affixed to an upper surface of the base. The support includes an opening to receive a ceramic insulator supporting a switch terminal and a second threaded opening to receive a bushing and polymer insulator supporting a line terminal. Each recloser unit utilizes a vacuum interrupter switch or terminal contact assembly to contain electrical arcing and maximize terminal contact life. The interior region defined by each support is filled with an environmentally friendly, nonvolatile insulation material. An interior region of each base houses a solenoid switch assembly and a pressure equalization assembly.

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Rocky River, OH, United States of America

Edward A Steele