Piston pump servo control
CA 1214532 A · Owner: General Signal Corporation · Inventors: Davis, Duane J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic closed loop piston pump servo control system including a swash plate within the pump housing which controls pump output as a function of its position about a rotational axis, means for altering the position of said swash plate means, for producing electric signals representative of the desired and actual swash plate angular positions, and means for comparing these signals and producing a control or error signal to the means for altering the swash plate position as a function of these signal differences. The means for producing electric signals representative of the actual swash plate position includes a rotary potentiometer mounted in the pump housing and directly connected to …
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 November 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 2003.
- 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.