Heat transfer method in a glass sheet bending furnace and bending furnace
CA 2001928 C · Owner: Tamglass Engineering Oy · Inventors: Peltonen, Esko Juhani
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 heat transfer method in a glass sheet bending furnace as well as to a bending furnace for , carrying out the method. The furnace includes a top array of successive heating sections (2) and a bottom array of , successive cooling sections (4). The glass sheets are placed upon bending moulds (6) supported by carrier wagons (5). Successive wagons (5) are advanced on an upper, conveyor track (7a) from one heating section (2) to the next and, respectively on a lower conveyor track (8a) from one cooling section (4) to the next. Heat is transferred from bent, hot glasses (HG) in cooling section (4) to non-bent, colder glasses (CG) in heating section (2) by means of …
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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
- Filed October 31, 1989 and granted February 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2011.
- 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.