Method and apparatus for detecting laminar flow separation and reattachment
CA 1324832 C · Owner: Mangalam, Sivaramakrishnan M. · Inventors: Mangalam, Sivaramakrishnan M.; Stack, John P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure The invention is a method and apparatus for simultaneously detecting laminar separation and reattachment of a fluid stream such as an airstream from and to the upper surface of an airfoil 22 by simultaneously sensing and comparing a plurality of output signals S each, representing the dynamic shear stress at one of an equal number of sensors 27 spaced along a straight line on the surface of the airfoil 22 that extends parallel to the airstream. The output sigals S are simultaneously compared to detect the sensors across which a reversal in phase of said output signal S occurs, said detected sensors being in the region of laminar separation or reattachment.
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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 November 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 2010.
- 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.