Device for maintaining wing balance on a multi-section header
CA 2561463 C · Owner: Talbot, Francois R. · Inventors: Talbot, Francois R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A crop harvesting header includes a center portion mounted on two spring arms and two separate wings pivotally connected to the center portion. The , wings are connected to the center portion by interconnecting linkages which transfer , weight from the wings to the spring arms each including a balance beam arranged to , balance the lifting force from the spring arm with the downward forces from the , center portion and wing such that the downward force on a skid plate of each portion , on the ground varies automatically as the total downward force is varied. The balance beams apply force to the linkages by a compression member to reduce forces. The movement caused by floating of the …
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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
- Filed September 22, 2006 and granted September 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2026.
- 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.