Servo control system for a reciprocating piston respirator
CA 1237507 A · Owner: Lifecare Services, Inc. · Inventors: Rubner, Anthony C.; Chu, Raymond D.; Fellinger, Michael W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control system (10) for moving a piston in a reciprocating piston respirator (46) which utilizes predictive servo control techniques. The present invention uses nonlinear time domain analysis rather than linear frequency domain analysis to produce a predictive servo control system (10) for precisely controlling the movement of a piston in a reciprocating piston respirator (48). A plurality of flow profiles can be produced using stored factor tables. Current pressure and position information are used in the predictive servo control system (10).
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 May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- 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.