Method and apparatus for detecting burner blowout
CA 2215276 C · Owner: Lucenko, Michael · Inventors: Vanderleest, Ruurd Edward; St. Onge, Kenneth John; Lucenko, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for detecting burner blowout comprises the following steps: periodically measuring the actual pressure of ignition at successive intervals of time; periodically measuring the actual rotational speed of the generator shaft at the successive intervals of time; calculating the rate of change in the actual pressure over a successive interval of time; calculating the rate of change in the actual rotational speed over the successive interval of time; comparing the rate of change in the actual pressure of ignition over the successive interval of time to a reference pressure rate of change value; comparing the rate of change in the actual rotational speed over the successive interval of time …
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 14, 1996 and granted November 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2018.
- 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.