Closed center emergency steering with accumulator source
CA 1102215 A · Owner: Caterpillar Tractor Co. · Inventors: Dezelan, Joseph E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An improved emergency system (10) for a vehicle having a closed center steering valve (12) a pump (14), normally supplying fluid to the valve and an accumulator, (16) for supplying emergency pressurized fluid to the valve when the pump fails. The improvement is a flow directing circuit (18) connecting the accumulator to the valve in parallel relationship to the pump and apparatus for blocking flow from the accumulator to the valve responsive to proper operation of the pump. Adequate emergency steering is provided to a closed center steering valve system by the above arrangement.
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 June 2, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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.