Safety method for a drying system
CA 2200833 C · Owner: Beloit Technologies, Inc. · Inventors: Thompson, Stanley Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dryer system has a combustion chamber a dryer and a, separator. The combustion chamber supplies heated gas to the dryer. Wet material is mixed with the heated gas in the dryer. The dried material is then separated from the gas in the separator. A method is used to increase the safety of the system. The method includes sensing the temperature of the dryer system. Further if, the temperature reaches a predetermined value the combustion, chamber is extinguished. Additionally upon the temperature, reaching the predetermined value steam is introduced into the, dryer system.
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 March 24, 1997 and granted February 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2019.
- 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.