Eaton Corporation

James Alan Trax

Erik Russell Bogdon

Dominic Patrick Martelli

Lance Gula

Robert William Mueller

Craig Allen Rodgers

Trent A Chontas

Ralph Mason Ennis

Yun-Ko N Chien

Raymond Peter Gundy, Ii

Dean Basil DeGrazia

Yu Wei Chou

Wayne C Sumpman

Lawrence Joseph Kapples

Ronald William Brand, Jr

Anthony John Fishovitz

Farhad Afshari

Doel Jafeth Collazo

Jason Eric Basta

Dave Curtis Turner

Vicki Diane Fodi

Dave A Parks

Dave E Little

Henry Kenneth Pruszynski

Jason E Basta

Doel Collazo

Raymond P Gundy Ii

A dampening assembly is for an electrical switching apparatus, such as a circuit breaker. The electrical switching apparatus includes a housing, separable contacts enclosed by the housing, and an operating mechanism structured to open and close the separable contacts. The dampening assembly includes a D-shaft pivotably coupled to the housing, and an anti-bounce assembly. The anti-bounce assembly includes a first element coupled to the housing, and a second element, such as an elongated resilient pin member, which is adapted to cooperate with the D-shaft to resist undesired movement of the D-shaft. The D-shaft has opposing first and second ends and a recess disposed between the first end and the second end. A portion of the elongated resilient pin member is disposed in the recess.

Electrical switching apparatus and dampening assembly therefor

An arc baffle includes a first baffle member having a number of first venting holes disposed therein, each being structured to receive ionized gases produced by an arcing event; a second baffle member having a number of second venting holes disposed therein; a section of porous material disposed between the first baffle member and the second baffle member; and a cover disposed adjacent the second baffle member on the opposite side of the section of porous material. The first venting holes are laterally spaced from the second venting holes by a predetermined distance such that ionized gases produced by the arcing event passing through one of the first venting holes must travel at minimum the predetermined distance generally along the section of porous material before passing through one of the second venting holes.

ARC baffling device

The reset lever on a circuit breaker undervoltage relay is actuated by translating arcuate movement of a handle arm pin as the circuit breaker handle is moved to the off position into rotation of the reset lever through a complaint interface lever that is stiff enough to actuate the reset lever, but flexible enough to accommodate for overtravel of the handle arm pin when the circuit breaker is reset and for the stackup of tolerances in the operating mechanism.

Undervoltage release and circuit breaker incorporating same

An interlock mechanism for preventing a first circuit breaker having a first actuating mechanism and a second circuit breaker having a second actuating mechanism from simultaneously being in a closed condition. The interlock mechanism includes a frame, a sliding bar slideably mounted within the frame, and one or more retaining protrusions extending outwardly from one or more inner edges of the frame. The sliding bar is movable between a first position and a second position. In the first position the sliding bar blocks a path of movement of the first actuating mechanism and in the second position the sliding bar blocks a path of movement of the second actuating mechanism. The one or more retaining protrusions frictionally engage the sliding bar when the sliding bar is in the first position and holds it in place, preferably with a frictional force sufficient to resist the force of gravity and/or vibrations.

Self retaining sliding bar interlock for circuit breaker

A U-shaped accessory actuator clip that snaps onto the crossbar of a multipole circuit breaker is integrally molded of a compliant material with a flexible finger that actuates/deactuates an accessory, such as an auxiliary switch, as the contacts of the breaker close and open.

Actuator for auxiliary switch and circuit breaker incorporating the same

This concerns a molded case circuit breaker having separable main contacts and an operating mechanism utilized to cause the separable main contacts to open and close. A trip unit is provided to actuate the operating mechanism in desirable circumstances. The trip unit has a magnetic trip level adjustment dial, which has an adjustment face with a series of detents therein. The dial has a cam service, which interacts with internal portions of the trip unit to set or calibrate the level at which a magnetic trip actuation occurs. The aforementioned detent interacts with a spring loaded L-shaped member which fits into the casing of the trip unit along with the dial as a single unit.

Circuit breaker with dial indicator for magnetic trip level adjustment

An actuator mechanism, for a circuit breaker having an operating handle, which includes a slider assembly and a mounting plate assembly. The slider assembly has a rigid, generally planar member with at least one notch. The mounting plate assembly has at least two generally parallel, spaced flanges and is structured to mount on the circuit breaker housing. One of the at least two flanges is structured to cooperate with the notch to allow the slider assembly to be slidably coupled to the mounting plate between the at least two flanges.

Actuator mechanism for an external circuit breaker operating device

A circuit breaker handle is provided with a curved bearing surface at its pivot point. The handle bearing surface has a substantially constant radius and is connected to the body of the handle with a necked down handle extension. The handle extension has a width that is less than the width of the curved bearing surface at the point of connection between the bearing surface and the necked down region. The handle pivot mates with a corresponding bearing surface on a notch in the side plate that it pivots within. The arc of the curved bearing surface in the side plate is greater than that of the corresponding bearing surface on the handle and captures the handle pivot within the notch in the sideplate, so the handle cannot lift off the bearing surface on the notch as it is moved.

Circuit breaker with an anti-lift pivot handle

A current throttle resistor external to a contactor device protects an electrical power distribution circuit coupling a load to a power line. The contactor has electrical switching contacts in series with the load and the line, and for example, an electromagnetically controllable switch for opening the contacts. A current sensor is coupled to the controllable switch for opening of the contacts upon occurrence of a high current fault in the power distribution circuit exceeding a predetermined threshold. A resistive element in series with the power distribution circuit between the line and the load, provides a voltage drop for limiting current during the high current fault. The resistive element can be a nichrome strip or similar positive temperature coefficient resistance having a low cool resistance, and is thermally isolated from the controllable switch by mounting in a resistor housing external to the contactor. To maximize resistance and minimize space, the nichrome strip is bent in an elliptical arc between two leads that protrude from the resistor housing, for coupling into the circuit on the load side of the contactor.

Three phase throttle current technique

Growing community of inventors

Oakdale, PA, United States of America

James Alan Trax