Method for operating an electric motor, and an electric motor for carrying out such a method
CA 2371493 C · Owner: Karwath, Arno · Inventors: Hornberger, Jorg; Jeske, Frank; Karwath, Arno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for operating an electric motor (32) to which a microprocessor or microcontroller (23) and a non-volatile memory (74) are assigned, whereby, during the occurrence of a fault at least one , operation data value of the motor is automatically stored in the non-volatile memory (74) in a program-controlled manner. The invention also relates to an electric motor for carrying out such a method. The invention serves to increase the operational reliability of a motor since the stored data can be queried occasionally or after the occurrence of a fault. In addition the , invention demonstrates how such faults are processed.
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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 16, 2000 and granted August 2, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 16, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2022.
- 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
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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.