Heating apparatus in coating process
CA 2025934 C · Owner: Trinity Industrial Corporation · Inventors: Yano, Hitoshi; Watanabe, Touichi; Asaoka, Yukio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention offers a heating apparatus in coating process for radiation heating of the workpieces coated with aqueous coating material while they are transported between the radiation heaters connected to the power units. Especially, it is characterized in that the coating color of the workpiece is specified in advance, and flash-off operation in optimal condition is performed by automatically regulating the radiation heat ray intensity suitable for the specified color.
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 September 21, 1990 and granted September 13, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2012.
- 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.