Actuating devices

Details Actuating devices Actuating devices

1975-12-17

1977-04-12

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

H01L 4112

Patent

active

040177548

ABSTRACT:
An actuating device comprises an elongated member formed from a material having the property of magnetostriction and a winding which can be energized to cause flow of magnetic flux in the member so as to cause a physical change in the dimension. The elongated member is divided into a plurality of magnetic circuits disposed along the length of the member and portions of adjacent magnetic circuits are adjacent each other. The directions of flux flow in adjacent magnetic circuits is such that in said portions of two adjacent circuits, the flux flows are in the same direction.

REFERENCES:
patent: 3353040 (1967-11-01), Abbott
patent: 3406302 (1968-10-01), Lanyi et al.
patent: 3612967 (1971-10-01), Lee
IBM Tech. Disclosure Bulletin, "Magnetostrictive Transducer", Young, vol. 6, No. 12, 5/64.

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