Position sensor
CA 2553216 C · Owner: Glasson, Richard O. · Inventors: Glasson, Richard O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A position sensor (10) includes a stationary frame (12) supporting a rotatable spool (20) onto which a cable (28) is wound in a plurality of individual windings (30). A distal end of the cable (28) extends through a lead guide (34) for attachment to an object whose position is desired to be sensed. As the object moves, the cable (28) is wound or unwound about the spool (20) and the spool (20) rotates in direct correlation to the movement of the object. The spool (20) is retained in the frame (12) through a threaded engagement between a threaded extension (22) extending from the spool (20) and a threaded opening in the frame (12). Thus, as the spool (20) rotates the spool (20) , …
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 January 14, 2005 and granted July 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2025.
- 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.