Timer for controlling an appliance having a plurality of pawls which rotate a camstack
CA 2215146 C · Owner: Emerson Electric Co. · Inventors: Cole, Ronald Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A timer for controlling an appliance includes a camstack which is continuously rotated during a portion of an entire operation cycle of the appliance. The camstack is rotated in either a slow mode of operation or a fast mode of operation. The timer further includes a first slow pawl which is advanced in a first path of movement. Movement of the first slow pawl in the first path of movement causes the camstack to be rotated in the slow mode of operation. The timer also includes a first fast pawl which is advanced in a second path of movement. Movement of the first fast pawl in the second path of movement causes the camstack to be rotated in the fast mode of operation. A method of controlling …
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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
- Filed September 25, 1997 and granted June 13, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2019.
- 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.