Shaft misalighment monitoring
CA 1266901 C · Owner: Britton, John D. · Inventors: Britton, John D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shaft misalignment monitoring system comprising a coil disposable on one side of a coupling connecting two co-rotating shafts and a ferromagnetic rod disposable on the other side of the coupling, the rod being so positioned within the confines of the coil that misalignment of the shafts alters the relative disposition of the rod and coil so as to affect the inductance of the coil the coil, forming part of an alternating current circuit an operating parameter of which is variable in dependence upon the inductance of the coil and which variable operating parameter is monitored to give an indication of the position of the rod with respect to the coil and hence of the degree of misalignment …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 20, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.