Cleaning system for refrigerator condenser
CA 2440132 C · Owner: True Manufacturing Co. Inc. · Inventors: Trulaske, Sr. Steven L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This cleaning system 100 includes compressor 102 driven by a motor 104; a , condenser 101; a cooling fan 105 for directing an air stream at the condenser 101 during normal operation; a motor drive system 106 for driving the fan 105 and a timing device 110 for reversing the rotational direction of the fan motor 130 to direct the stream of cooling air away from the condenser 101 to remove debris collected on the condenser and clean the condenser during a cleaning cycle. The fan 105 is driven by drive system 106 having a solid state commutated motor 130 or a drive system 106 having a reversible permanent split capacitor motor 130b. The timing device 110 includes a timer 110a 110b for , …
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 December 14, 2001 and granted October 11, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 14, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2023.
- 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.