Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1975-02-03
1976-07-13
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310156, 335306, H02K 2100
Patent
active
039696448
ABSTRACT:
A pulse generator is comprised of an asymmetrical magnet assembly and a Hall sensor operative for generating an electrical signal upon the application of a magnetic field thereto. The Hall sensor and magnet assembly are mounted for relative movement for the generation of a train of electrical signals in response to relative displacement therebetween. The asymmetrical multi-pole magnets in the magnet assembly have a plurality of symmetrically spaced pole pairs with each pole pair including a magnetic pole of predominant polarity occupying a substantially greater area than the pole of opposite polarity. The predominant pole is sufficiently strong to provide a salient magnetic field of essentially single polarity. a magnetizing head also is provided for producing the asymmetrical pole character of the magnet.
REFERENCES:
patent: 3149256 (1964-09-01), Kohlhagen
patent: 3304449 (1967-02-01), Pohlman et al.
patent: 3335377 (1967-08-01), Kohlhagen
patent: 3355645 (1967-11-01), Kawakami et al.
patent: 3678311 (1972-07-01), Mattingly
patent: 3803433 (1974-04-01), Ingenito
patent: 3855490 (1974-12-01), Sidell
Duggan Donovan F.
Veeder Industries Inc.
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