Load-responsive steering control valve
CA 1181014 A · Owner: Deere & Company · Inventors: Spencer, Joseph C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A steering system includes load-responsive valving which automatically routes pressure fluid to one of a pair of doubleacting hydraulic actuators when steering resistance is low and which automatically routes pressure fluid to both of the actuators when the steering resistance is high.
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 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 2002.
- 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.