Perforating gun brake
CA 2185077 C · Owner: Lessoway, Ryan · Inventors: Blimke, Ross Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A perforating gun brake includes a tubular housing an, annular piston and a mandrel. A first end of the piston is telescopically received in an interior bore at a second end of the tubular housing. The mandrel extends through an interior bore of the piston into the interior bore of the tubular housing. An hydraulic fluid chamber is formed in the interior bore of the tubular housing. A spring biases the piston toward a first end of the mandrel. The movement of the piston along the mandrel is resisted by hydraulic fluid in the hydraulic fluid chamber. An explosive charge is positioned on a first sealing assembly for the hydraulic chamber. Several gripping members are pivotally mounted to an …
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 September 9, 1996 and granted September 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2018.
- 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.