Electrical generator or motor structure – Dynamoelectric – Reciprocating
Patent
1979-09-10
1980-10-14
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Reciprocating
310 32, H02K 706
Patent
active
042283736
ABSTRACT:
A pair of spaced, toroidal-shaped, electromagnetic coils, when supplied with alternating DC current, cause a floating armature to reciprocate therebetween. The armature itself includes a second pair of back to back, toroidal-shaped electromagnetic coils mounted on a non-conductive linear output drive rod which extends through an opening in at least one of the first mentioned pair of coils to deliver the force generated by the reciprocating armature to a suitable force transmitting mechanism. The armature floats between the first pair of electromagnets and is so positioned with respect thereto that its path of movement is totally between the two opposed electromagnetic coils and never enters the central opening formed therein, whereby frictional losses are eliminated, the strength of the magnetic flux field is maximized and the magnetic force generated by each electromagnet acts more consistently over the entire armature throughout its path of movement.
REFERENCES:
patent: 1198934 (1916-09-01), LeGrande
patent: 1428489 (1922-09-01), Mace
patent: 1703997 (1929-03-01), Greenwood
patent: 3718829 (1973-02-01), Wilson
patent: 4179631 (1979-12-01), Funderburg
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