The control of a linear motor
CA 2618669 C · Owner: Lines, Christopher Roger · Inventors: Lines, Christopher Roger; Cruise, Rupert John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A linear electric motor has a fixed primary comprising a stator that is divided into a number of sections, a translating secondary that has an operative length that is longer than any two adjacent sections of the stator in the form of a reaction plate, and a connecting means for connecting only those sections of the stator that are covered either fully or partially, by , the reaction plate. The stator sections are categorised in three groups - two groups of representative sections and an ordinary group of sections. The first and second representative sections alternate with ordinary sections between them. The position of the reaction plate relative to the stator is determined by …
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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 August 3, 2006 and granted July 21, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 3, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.