Adaptor for attachment of an agricultural implement to a three point hitch of a tractor
CA 2067911 A1 · Owner: Fox, Thomas Russell · Inventors: Fox, Thomas Russell; Rogalsky, Douglas Keith
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adaptor for attachment of a swather header to a conventional tractor using the three point hitch available on the tractor comprises an elongate beam having brackets at one end for attachment to the three point hitch and a ground wheel at an opposed end for rolling upon the ground so that the beam is supported at the hitch at one end and the ground wheel at the other end. An arm extending from the beam to the ground wheel is directed downwardly and toward the tractor so that the wheel is approximately aligned with the rolling axis of the adjacent wheels of the tractor. This prevent scrubbing during steering. In addition the three point hitch is arranged relative to the angle of the arm so …
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 May 1, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 1, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 1, 2014.
- 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.