Capacitive displacement encoder
CA 2368140 A1 · Owner: Netzer Precision Motion Sensors Ltd. · Inventors: Netzer, Yishay
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A capacitive motion encoder (140), for sensing the position of a moving object relative to a stationary object, includes at least one stationary element (141), coupled to the stationary object and a moving element (148) coupled to , the moving object and in proximity to the stationary element. A field transmitter (142) generates an electrostatic field which is modulated by a , change in capacitance between the stationary and moving elements responsive to relative motion of the elements. A conductive shield (154) is electrically decoupled from both the moving and the stationary objects and encloses the , moving and stationary elements so as to shield the elements from external …
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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 March 30, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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
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.