Back to results
US 5,394,132 AGranted
Magnetic motion producing device
OwnerJames E. Poilinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerJames E. Poilinventor
Estimating the term…
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.
A motion producing device utilizing magnetic lines of force comprising in combination, a series of magnetically linked magnetic force units, said series formed by a magnetic force unit including at least one fixed polarity magnet alternating with a next adjacent magnetic force unit including at least one reversible polarity magnet, each said magnetic force unit further including rigid electrically nonconductive material surrounding each said fixed polarity magnet and said reversible polarity magnet, first rigid electricity carrying means embedded in said rigid electrically nonconductive material of each said magnetic force units, an elastic electrically nonconductive filler separating each of said magnetic force units, first elastic electricity carrying means embedded in said elastic electrically nonconductive filler and joined in series with said first rigid electricity carrying means of each said adjacent magnetic force units forming a first circuit, an elastic electrically nonconductive outer sheath supporting and protecting said series, said at least one reversible polarity magnet being an electromagnet, an electrical power source connected to said at least one electromagnet through said first circuit and a polarity reversing means in said first circuit, whereby reversing the polarity of said first circuit reverses the polarity of said at least one electromagnet changing the direction of said magnetic lines of force thereby providing an expanding or contracting motion of said motion producing device, like adjacent poles causing expansion and unlike adjacent poles causing contraction.
A motion producing device utilizing magnetic lines of force comprising in combination:
A motion producing device utilizing magnetic lines of force comprising in combination, a series of alternately spaced fixed and polarity reversible magnets, electrically insulating material surrounding each magnet of said series of magnets, elastic electrically insulating material mounted between each adjacent fixed and polarity reversible magnets, a power source, current conducting means for carrying current to at least said polarity reversible magnets from said power source, a polarity reversing means in said current conducting means that reverses the polarity of said current conducting means to said at least polarity reversible magnets, and guide means to control expansion or contraction movement of said series as said power source is applied.
Dependencies are inferred from the claim text.