Pressure fluid actuator with damping and speed control device
CA 2314958 A1 · Owner: Univer S.P.A. · Inventors: Favotto, Sergio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The pressure fluid actuator comprises a tubular body and closing heads to define a piston chamber in which a piston may reciprocate. The piston, at both ends is, provided with a damping bush which may protrude into a flow damping chamber in each closing head connected to a fluid inlet/outlet port; a conduit comprising a flow throttling valve is branched between each side of the piston chamber and the damping chamber in each closing head. The flow damping bush comprises a longitudinally extending fluid supply duct provided with a pressure actuated unidirectional flow control valve which prevent the pressure fluid to flow from the piston chamber into the damping chamber during damping at the …
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 August 3, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 3, 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.