Recycling pilot ignition system
CA 1105546 A · Owner: Itt Industries, Inc. · Inventors: Gann, Ronald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system including a circuit for igniting or reigniting a pilot burner in a gas fired device each time heat is called for by a thermostat or otherwise. The main burner is ignited by the ignited pilot upon detection of pilot ignition. A sequencing interlock is provided for trial ignition over a limited period of time. An output of a main valve control acting through the sequencing interlock causes sustained actuation of a pilot valve control if the main valve control is actuated. - 1 -
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
- Granted July 21, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 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.