Magnetic motion producing device

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device

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Details

335222, 335223, 335259, 335264, 335267, H01F 708

Patent

active

053941322

ABSTRACT:
A motion producing device in the form of a linear actuator, circular pump, or a robotic or prosthetic limb which functions to produce many kinds of work is provided. The device includes a linear series of alternately spaced fixed and polarity reversible magnets. The fixed and polarity reversible magnets may have more than one magnet assembled as a force unit of magnets of fixed polarity or reversible polarity which is surrounded by a rigid electrically insulating material and that carries rigid electrical conductors in the form of tubes. Between each magnetic force unit is an elastic electrically insulating material allowing expanding or shrinking of the distance between the magnetic force units in accordance with the polarity reversal of the reversible magnetic force units. The elastic expansion or contraction material carries flexible elastic tubes that connect with the rigid tubes to hold a current carrying electrolyte to carry electrical current from a D.C. battery to the magnets when they are electromagnets. Various types of guides are used to prevent lateral movement of the magnets. A second embodiment also has magnetic force units of the fixed and reversible polarity type but has slideable electrical contacts in an external side guide and requires no electrolyte or tubes. A further modification utilizes the original rigid tubes and provides guide rods as slideable electrical contacts to slideably engage the rigid tubes which are metal. Again the disposing of the elastic flexible nonconductive tubes in the elastic nonconductive filler material between adjacent magnets is possible.

REFERENCES:
patent: 3750067 (1973-07-01), Fletcher et al.
patent: 4176411 (1979-12-01), Runge
patent: 4516102 (1985-05-01), Rask

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