Fluid delivery pressure control system
CA 2054565 A1 · Owner: Borcuch, John Patrick · Inventors: White, Norman Henry; Borcuch, John Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
System and method for controlling process fluid flow to maintain a set delivery pressure at varying demand, including a fluid-loaded self-operated main regulator and a method for providing the loading pressure therefor. The system also includes a flow restrictor for metering the loading fluid flow, a back-pressure regulator for controlling the loading fluid pressure and a, temperature-actuated regulator for venting loading fluid when the process fluid temperature varies from a selected range. D-16572
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
- Filed October 30, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2013.
- 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.