Siemens Energy & Automation, Inc.

Other

Terry L Marquardt

Christian H Passow

Rudolf E Zimmermann

A system for selecting coil voltage in an electrical device comprises a housing and a coil in the housing having a plurality of windings. Each winding has a pair of pins. A slider supports a plurality of moveable contacts and is moveably mounted in the housing proximate the coil so that the plurality of moveable contacts selectively make or break electrical contact between the winding pins to select coil voltage.

Electromechanical device for selecting coil voltage and locking the coil in place

Method for selecting coil voltage and locking the coil in place

Slider for selecting coil voltage and locking the coil in place

A push-pull switch operator includes a housing. A rotary drive is rotationally mounted in the housing and has a circumferential cam track. An actuator is operatively coupled to the rotary drive for converting linear movement of the actuator to rotary movement of the rotary drive. A pusher is received in the housing and has a follower pin riding in the cam track to convert rotary movement of the cylinder to linear movement of the pusher. The pusher actuates an electrical switch. A cap is operatively coupled to the actuator for manually operating the actuator between in, middle and out positions to selectively operate the pusher.

Push-pull switch operator

Size constraints imposed by riveting of the laminations of a sensing core transformer that cost constraint imposed through the use of adhesive in assembling laminations together in a sensing core along with the use of additional fasteners are eliminated through the use of two lamination assemblies, that are interference fitted at complementary surfaces to form a series of lamination assemblies to which a coil assembly may be applied. Individual laminations may be held together by stake holding structure.

Magnetic assembly for a transformer or the like

A overload relay includes a base (22) with electrical contacts (162, 164) thereon. A lever (116) including a contact actuator (140) is in proximity to the contacts (162, 164) and a pivot (122) mounts the lever (116) on the base (22) for pivotal movement between first and second positions. A releasable latch (106) normally holds the lever (116) in a particular one of the positions and a spring (144) is interposed between the base (22) and the lever (116) at a location spaced from the pivot (122) to bias the lever (116) toward the other of the positions by applying a bias thereto in a generally predetermined direction. The direction and location are such that when the lever (116) is in a latched position, the bias will provide a relatively small force tending to move the lever (116) toward the unlatched position and further is such that as the lever (116) moves towards the first position, the bias produces an increasing force tending to move the lever (116) towards the unlatched position.

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Brookfield, WI, United States of America

Terry L Marquardt