Press driven tool actuator module
CA 2310167 A1 · Owner: Stenquist, Sven · Inventors: Stenquist, Sven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For a hydraulically actuated device a hydraulic power cylinder with an actuator slidably received for reciprocation within the cylinder and a piston slidably, received for reciprocation within a sleeve of the actuator and defining a gas chamber, on one side of the piston and a hydraulic fluid chamber on the other side of the piston, so that the maximum pressure in the hydraulic fluid chamber is limited as a function of, the force of compressed gas in the gas chamber acting on the piston. In this way, the, maximum system pressure is a function of and substantially corresponds to the pressure of the compressed gas within the gas chamber and acting on the piston. Desirably, the pressure …
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 May 30, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 30, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 2022.
- 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.