Tilt, motion and shock sensor
CA 2424357 A1 · Owner: Lonsdale, Robert I. · Inventors: Lonsdale, Robert I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic sensor device that utilizes a piezo electric cell and a free moving sphere within the, sensor's structure to produce electrical signals that are representative of applied tilt, shock, vibration, or motion. The Piezo electric sensor produces electric impulses when shock or sound, waves are felt. The free moving sphere such as a ball bearing, also causes , the sensor to produce electric impulses as the sphere moves, due to tilting or acceleration across , the surface of the, piezo device. The sensor's structure is cylindrical and generally horizontal. The electric impulses, produced by the sensor may be amplified to produce an alarm signal. These impulses may also, be …
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 March 31, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 31, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2025.
- 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.