Control apparatus for dental gas burner
CA 1215449 A · Owner: Hayashikane Shipbuilding & Engineering Co. Ltd. · Inventors: Tada, Yoshikazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control apparatus for a dental gas burner is disclosed which is capable of variably setting combustion time of the burner as desired. The control apparatus comprises a circuit for operating a solenoid valve provided at a fuel gas supply pipe, a circuit for igniting fuel gas ejected from a burner nozzle, a command circuit including a touch sensor and generating a pulse every touch with respect to the touch sensor a combustion time, setting circuit acting to count pulses of the command circuit to set combustion time corresponding to the number of counted pulses to open the valve during the time and, a timing circuit for supplying to the combustion time setting circuit a count signal …
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 December 16, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 16, 2003.
- 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.