Sensor
CA 1294793 C · Owner: Mutech Holland B.V. · Inventors: Hoekstra, Linze
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Sensor for an apparatus for measuring the level and/or the quantity of a liquid medium in a vessel comprising a, carrier, said carrier being adapted for mounting in the wall of said vessel; a first pipe of extended length fastened to said carrier, said first pipe being electrically conductive and serving as a capacitor electrode; a spiral winding of extended length of electrically conductive material and spiral winding, being concentric with said first pipe and electrically insulated therefrom, said winding forming the second electrode of a capacitor; connecting means for connecting said winding and said pipe to external circuitry, said spiral winding having a variable pitch along its …
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
- Granted January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.