Furnace pressure sensor
CA 1096008 A · Owner: Zink (John) Company · Inventors: Street, Vernon A.; Reed, Robert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for creating an alarm whenever the pressure inside of a combustion furnace is higher than atmospheric pressure. The system uses a pressure reference comprising a chamber which is designed to average out momentary wind-induced fluctuations of pressure in the atmosphere and to provide a substantial volume of air inside the chamber which is maintained at an average value of atmospheric pressure. A conduit is passed through the wall of the furnace to the point under the furnace arch where the pressure is to be measured. This conduit is connected by a tubing to the chamber. A temperature sensing means is inserted in the conduit as to measure the temperature of gas flowing through the …
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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
- Granted February 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 17, 1998.
- 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.