Method of producing preforms for drawing optical fibres and preforms obtained in accordance with this method and apparatus for the continuous production of optical fibres
CA 1192096 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Kuppers, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing preforms for drawing optical fibres consists in depositing by means of a nonisothermal plasma activated C.V.D. process core glass and cladding glass onto a starting member which is moved from the deposition chamber at a rate which is the same as the growth rate. An arrangement for drawing fibres simultaneously with the formation of the preform is described.
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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 August 20, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.