Flexible shunt for electric power switch
CA 2408499 A1 · Owner: Jenkins, Walter O. · Inventors: Jenkins, Walter O.; Marchand, Francois J.; Bottegal, Paul T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible shunt (23) in the form of a flexible member (25) made up of a stack of electrically conductive laminations (27) each of a thickness of no more than about 0.002 inch (0.051 mm) has a moveable end (25m) secured by a moveable mount (29) to a moveable contact support of an electric power switch for movement along a linear path (17). A fixed mount (37) secures the fixed end (25f) of the flexible member (25) to a fixed conductor termination (21) spaced laterally from the moveable end (25m) along a neutral axis perpendicular to the linear path (17) of the moveable end (25m) by an offset distance (j) such that the installed length (f) of the intermediate section (25i) between …
Read the whole patent
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 7, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 7, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2023.
- 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.