Contactor operation control device
CA 2124630 C · Owner: Ece Sa · Inventors: Goiset, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Contactor operation control device. This contactor operation control device comprises a call coil and a coil for maintaining mobile equipment in an active position. The power supply for the device is controlled by control means and is characterised in that the control means include separate control means for supplying the coils receiving voltage supply information as input from the contactor to simultaneously supply the two coils when the operation of the contactor is triggered; and to cut the voltage to the call coil after a determined length of time after the operation of the contactor is triggered; and to supply the call coil again in the case of a specific drop in voltage in the …
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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 May 30, 1994 and granted August 31, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 2016.
- 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.