Production method with breakage detection for a thread
CA 2371526 A1 · Owner: Vetrotex France S.A. · Inventors: Gibello, Bruno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for producing a continuous thread wherein a , multiplicity of continuous filaments is formed by mechanically drawing a multiplicity of strands of melted thermoplastic material (s) especially , glass, and said filaments are combined to form at least one thread. The inventive method is characterized in that the tension exerted by a group of some or all of the filaments is constantly verified whereby it is detected if said tension falls below a predetermined value.
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
- Filed April 26, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2022.
- 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.