Method and apparatus for curing paint on a surface
CA 2136556 C · Owner: Epworth, Larry N. · Inventors: Epworth, Larry N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A means for curing heat-curable paint on vehicle panels includes an elongate pipe defining an internal combustion chamber with a fuel burner at one end of the pipe, and means for removing combustion products from the other end of the pipe. The pipe is clamped in a substantially horizontal position and has "bellows" means to allow, for thermal contraction and expansion. Two part-cylindrical baffles are supported at, opposite sides of the pipe but spaced therefrom and from each other so as to define an, upper elongate opening. Ignition mean are provided to ignite fuel within the burner, to initiate combustion whereby the outer surface of the pipe emits radiant heat, primarily through …
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 November 24, 1994 and granted October 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 24, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2016.
- 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.