Articulated bunk for logging trucks
CA 2211082 C · Owner: Janzen, William W. · Inventors: Janzen, William W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A log bunk assembly for use on logging truck-trailer units. The bunk comprises a generally horizontal bunk beam having a recess hub-and-saucer assembly for, allowing the bunk beam and trailer/log load to pivot in the horizontal plane an upper trunnion, saddle contained within the bunk beam recess a lower trunnion saddle, and a trunnion tube attached to a pedestal mounted on the hub-and-saucer assembly. The trunnion tube is clamped between and frictionally engages the upper and lower trunnion saddles. The bunk beam pivots about the horizontal axis of the trunnion tube in the vertical plane. The trunnion tube always remains perpendicular to the longitudinal axis of the trailer/log load.
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 July 21, 1997 and granted February 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2019.
- 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.