Hydraulic power system
CA 1291923 C · Owner: Downie, R. James · Inventors: Wachowicz, Stanley W.; Downie, R. James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1-, Abstract, A hydraulic system and method are provided for supplying high pressure hydraulic fluid to a cylinder for operating a ram, e.g a shearing and/or shut-off ram for a blowout preventer. It comprises means for supplying high pressure hydraulic fluid to the cylinder said hydraulic, fluid supply means comprising first and second storage means for storing hydraulic fluid under pressure first, conduit means for supplying hydraulic fluid under pressure from said first storage means to the cylinder a pressure, sensing device for determining the back pressure in said first conduit means, second conduit means for supplying hydraulic fluid under pressure from said second storage means to …
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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 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2008.
- 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.