Method and apparatus for installing a helical pile
CA 2452448 A1 · Owner: Nimens, Joseph R.E. · Inventors: Nimens, Joseph R.E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and a method to assist in the installation of a helical pile. The apparatus, comprises a drive mechanism having an engaged and a disengaged configuration. When in its engaged configuration the drive mechanism operatively grips the exterior, surface of the helical pile. When in its disengaged configuration the drive mechanism, operatively releases the exterior surface of the helical pile. Movement of the drive, mechanism when in its engaged configuration causes rotational movement of the pile. When in its disengaged configuration the drive mechanism moves without rotation of, the pile.
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 December 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 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.