Hydraulic and earth engineering – Diving – Remote control
Patent
1992-01-24
1993-06-15
Taylor, Dennis L.
Hydraulic and earth engineering
Diving
Remote control
405188, 441 2, 441 23, B63C 1100
Patent
active
052192458
ABSTRACT:
A recovery system for a submerged instrument that includes a buoyant member and an electrically promoted magnetic flux diversion device comprising a pair of pole pieces, a permanent magnet disposed substantially centrally between said pole pieces, and a release plate comprising ferromagnetic material bridging one end of said pole pieces, the pole pieces and permanent magnet forming tow flux paths with the metal release plate forming a portion of one of said flux paths. A control winding associated with the pole pieces are disposed for producing a momentary magnetic field opposite to that of the permanent magnet to divert the flux path from the path that includes the release plate to the other flux path. A remotely activated electrical pulse to the control winding diverts the flux path and releases the release plate form the pole pieces allowing the marker buoy to rise to the surface for recovery of instrument or device to which the buoy is attached.
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"Permanent Magnets in Theory and Practice" 2nd Ed. M. McCaig & A. G. Clegg pp. 254-259 (258).
Bitner Ronald G.
Her Majesty the Queen in right of Canada as represented by the
Taylor Dennis L.
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