Control system for a clothes dryer heater
CA 2422648 A1 · Owner: Bruntz, Jordan S. · Inventors: Herr, Joel L.; Bruntz, Jordan S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control system for a clothes dryer includes a control circuit adapted to set the amount of power sent to a main heater of the dryer during various cycles of, operation. The control circuit automatically controls the maximum temperature reached in a particular dryer cycle through the use of a thermostat that switches, the main heater from a full power setting to a low power setting when the temperature in the dryer reaches a certain maximum preset temperature. By providing low power, rather than no power as the thermostat trips at its preset high, temperature, the total drying time required to dry articles of clothing within the, dryer is reduced.
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 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 2025.
- 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.