Hu Development Corporation

Other

Krzysztof J Ciezarek

Jerzy Hoffman

A solenoid actuator having a slider element with a permanent magnet is provided. When the electromagnet is activated, the electromagnet repels the permanent magnet, moving the permanent magnet of the slider toward a second position under the influence of a mass of ferro-magnetic material located adjacent the second position. In a preferred embodiment, the poles of the slider permanent magnet are co-axially aligned with the coil and core of the electromagnet. In an alternative embodiment, the mass of ferromagnetic material may be eliminated.

Solenoid actuator

A high-speed, high-reliability electromagnetic relay particularly adapted for use in electronic systems with signal frequencies from DC in excess of 20 MHz. A ferro-magnetic armature is attached to an actuator plate made of dielectric material which is in contact with a flexible contact reed. One end of the contact reed is in fixed electrical contact with an input pin and the other end is movable between a normal position in electrical contact with a first output pin and a second position in electric contact with a second output pin. To improve resistance to environmental extremes such as shock and vibration, a permanent magnet can be located so that its attractive force holds the armature in the normal position. An electromagnet is located such that when it is activated the attractive force of the permanent magnet is overcome by the attractive force of the electromagnet, moving the armature to the second position and causing the actuator plate to move the contact reed into electrical contact with the second output pin.

Electromagnetic relay

A matrix switch is provided having a plurality of input and output conductors adjacent each other such that an input connector may be connected to one of many output connectors upon actuation of a single movable conductor. Transfer conductors disposed adjacent to the input and output connectors allows the input connector to be electrically coupled to the remaining output connectors.

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Sherman Oaks, CA, United States of America

Krzysztof J Ciezarek