Roll opening device with header stabilizer
CA 1093310 A · Owner: International Harvester Company · Inventors: Segredo, John D.; Cicci, George B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roll opening device is provided for a hay harvesting machine of the type having a wheel supported main frame and a laterally elongated crop harvesting header mounted to the frame by pivotal linkage the header having a, fixed lower conditioning roll and an upper roll mounted on lever arms pivoted on said header and biased by tension spring to an operating position adjacent the lower roll. toggle link is pivotally mounted to the header at each end of the roll adjacent the roll lever arms and is connected thereto. Tensile members interconnect the free ends of the toggle links with the frame so that when the header is raised to the transport position, the tensile members open the rolls …
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
- Granted January 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 13, 1998.
- 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.