Ice bin level sensor
CA 1267203 C · Owner: King-Seeley Thermos Co. · Inventors: Lind, Leroy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In accordance with this invention a circuit for controlling an, automatic making system of a refrigeration apparatus is disclosed. The device includes an electrical circuit which operates the ice making machine using a light interrupter system. A pulsed light source is placed such that it will be interfered when the ice has reached a predetermined level in the ice containing bin. The circuit uses operational amplifier signal processing components which activate the ice making machine once the light source is sensed for a predetermined period of time and deactivates the ice maker when the light source is not sensed for another predetermined period of time. The circuit also includes mans for …
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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 March 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 2007.
- 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.