Split magnet drive

Details Split magnet drive Split magnet drive

1977-10-11

1979-07-31

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 711

Patent

active

041631641

ABSTRACT:
One of two permanent magnets used to drive pumps and the like is split--i.e., the annular permanent magnet is split into two annular members, one fixed to one of the rotating members, the other freely rotatable independent of the other. The structure provides for recoupling without having to stop the driving magnet when decoupling has occurred. It also provides free travel and/or dynamic damping to alleviate oscillation and sporadic decoupling.
The member fixed for rotation is a permanent magnet; the other is preferably a permanent magnet but may also be of a material which is magnetically permeable, in which case damping only is accomplished.

REFERENCES:
patent: 1862267 (1932-06-01), Honig
patent: 2415344 (1947-02-01), Eksergian
patent: 3240304 (1966-03-01), Wickersham
patent: 3374375 (1968-03-01), Cook

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