High output device for confirming thread presence in nuts and other threaded parts
CA 2521347 C · Owner: Paquin, Robert K. · Inventors: Brun, James L.; Wickham, John L.; Paquin, Robert K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for confirming the presence of thread in nuts and other threaded parts has a threaded gage mounted on a holder which is connected through a clutch to a motor The motor drives the holder to rotate the threaded gage to engage the threaded part. Switches are provided to stop and reverse the motor. The device identifies parts without threads and also damaged and incomplete threads. The device does not impart undue force levels to unthreaded undersized parts or defective parts. The device confirms threads in threaded blind bores.
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 September 27, 2005 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 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.