Orientating optical fibres
CA 1304244 C · Owner: British Telecommunications Public Limited Company · Inventors: Copple, Ian Peter; Achurch, Nicholas Edward; Cassidy, Stephen Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for setting the orientation of an optical fibre having at least one planar section extending along its length comprises a light source for generating a beam of light which impinges on the fibre. Light reflected by the fibre is detected by a light detector and the fibre is rotated by means of a tube into which it is inserted while the intensity of the detected light is monitored. When the intensity becomes a maximum then the planar face is facing in a known direction.
Read the whole patent
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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.