Inclination sensor
CA 1284579 C · Owner: Ryan, Paul Thomas · Inventors: Ryan, Paul Thomas; Wyatt-Millington, Charles William; Davis, Kelvin Rogers
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inclination sensor is disclosed which includes a capsule 15 containing a conductive liquid 17 which forms a liquid pendulum and having first and second resistive tracks 11 13. In, a first measuring configuration the terminals A B of track 11, are connected to positive and negative voltages respectively and the terminals C, D of resistive track 13 are connected together to form a sensing electrode. The voltage at terminal B is then adjusted so that the voltage at common electrode C D, sensed, through the conductive liquid 17 is adjusted to be zero. The ratio of voltages at terminals A and B is then related to the position of the conductive liquid 17 relative to the resistive track 11 and …
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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
- Granted June 4, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2008.
- 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.