Rotary shafts – gudgeons – housings – and flexible couplings for ro – Electrical or magnetic coupling
Patent
1986-07-29
1988-08-30
Stodola, Daniel P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Electrical or magnetic coupling
H02K 4910, F16C 3906, A61M 516
Patent
active
047673788
ABSTRACT:
A frontal magnetic rotational coupling for transmitting torque from a first enclosure to a second enclosure, said enclosures being hermetically separated from each other by an isolating wall. A plate affixed directly above a magnet attached to a rotatable shaft in one enclosure of the coupling is employed to magnetically provide bearing load relief. Axial force exerted upon the magnet from the other enclosure is compensated for by the magnetic field of the magnet itself, due to the return flux path provided by the plate. A miniaturized form of construction results which is of particular advantage when the frontal magnetic rotational coupling is used, for example, in an implantable medication dispensing device.
REFERENCES:
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patent: 3332252 (1967-07-01), Miller et al.
patent: 3643120 (1972-02-01), Young et al.
patent: 4065234 (1977-12-01), Yoshiyuki et al.
patent: 4115040 (1978-09-01), Knorr
patent: 4350646 (1982-09-01), Baus
Edelman Lawrence C.
Siemens Aktiengesellschaft
Stodola Daniel P.
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