Tractor
CA 1281053 C · Owner: Haglinge Industri Ab · Inventors: Persson, Kjell O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The wheel suspension of a tractor includes a transverse axle (12) disposed centrally of the frame of the tractor. Each end of the axle (12) carries two arms (13 13, 14, 14) one, for each wheel (15) at the respective side of the tractor. The arms are independently pivotal about the axis of the axle (12). Each arm (13, 14) is provided with a hydraulic cylinder (16) for selectively raising or lowering the associated wheel. The invention provides a simple mechanism for maintaining the cab of the tractor and at generally horizontal position in a rough terrain, when riding along a steep slope or the like.
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 March 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2008.
- 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.