Modular control linkage assembly for a hydrostatic transmission
CA 1072860 A · Owner: Caterpillar Tractor Co. · Inventors: Rinaldo, James D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hydrostatic transmission has a pair of variable displacement overcenter hydraulic pumps and first and second rotary servo valves. Each servo valve has a housing connected to the respective pump and a valve spool rotatably positioned within the housing for controlling the output displacement of the respective pump. A mounting plate extends between and is releasable connected to the housings of the first and second servo valves. A first device is connected to the valve spool of the first servo valve for selectively rotating said first servo valve spool, said first device being mounted on said mounting plate adjacent said first servo valve spool. A second device is connected to the valve …
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 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 1997.
- 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.