H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/34
H02K 41/06 (2006.01) F16J 15/50 (2006.01) F16K 31/08 (2006.01) G01R 11/14 (2006.01) H02K 49/10 (2006.01) H02K 5/128 (2006.01)
Patent
CA 1081755
ABSTRACT A magnetic drive is disclosed for transmitting torques to the interior of a pressurized vessel. It includes a nonmagnetic tubular housing securable at one end to an opening in a pressurizable vessel and sealed at the opposite end, whereby the housing may be subject to vessel pressure. A sleeve coaxial with the housing is mounted rotatable thereto and supports circumferentially polarized cylindrical rare earth cobalt magnets. A driven shaft is journaled in the housing by bushings that impose no axial restraint on the shaft, the shaft being long enough to extend through the open end of the housing and having mounted thereto circumferentially magnetized rare earth cobalt magnets such that when the sleeve is turned the driven shaft will follow, the shaft having at least one other cylindrical rare earth cobalt magnet axially polarized and attached to the driven shaft. The nonmagnetic tubular housing has associated therewith at least one cylindrical rare earth cobalt magnet coaxial with the driven shaft and arranged to cooperate with the axially polarized cylindrical magnet attached to the driven shaft to main- tain the axial position of that shaft.
292835
Autoclave Engineers Inc.
Smart & Biggar
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