Optical fiber drawing apparatus
CA 1317460 C · Owner: Yamazaki, Takashi · Inventors: Tsuneishi, Katsuyuki; Yamazaki, Takashi; Ito, Shigeru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1-, Abstract:, An optical fiber drawing apparatus includes a furnace for fusing a forward end of an optical fiber preform for drawing an optical fiber, and a screening portion for applying tension to the optical fiber in the line for testing its strength. The screening portion includes a suction device disposed along a span of the optical fiber running through it, for sucking the optical fiber thereinto in the event of a breakage. The arrangement avoids broken optical fiber becoming entangled with other parts of the apparatus and improves productivity.
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 May 11, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 11, 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.