Agricultural implement with hitch control
CA 1210627 A · Owner: Deere & Company · Inventors: Hubbard, Kevin L.; Roth, Robert R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tractor-drawn agricultural implement of the type that requires a floating hitch member while operating but a rigid hitch member while in transport. This is achieved according to the present invention by linkage connected between a hitch member control mechanism and the cranked axle that serves as the wheeled carrying structure for the implement main frame. The linkage is arranged so that when the main frame is in its lowered or operating mode, a stop is clear from the hitch member control so that the hitch member has a free pivotal movement about a transverse axis, but when the frame is raised to transport or raised mode, the stop engages the hitch member control and renders the drawbar …
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 September 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 2003.
- 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.