Variable-stroke pneumatic cylinder
CA 2404588 A1 · Owner: Migliori, Luciano · Inventors: Migliori, Luciano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A variable-stroke pneumatic cylinder; the cylinder comprises a tubular casing, having fore and rear heads defining a chamber for reciprocation of a piston member along a working stroke; at least one of the heads is provided with an air inlet/outlet hole connected to a central cavity in the cylinder head, which facing towards the piston chamber. The rear head is provided with a pneumatic damping device comprising a venting path provided with a control valve. The pneumatic cylinder also comprises head extension members to change the working stroke; the extension members are in the form of disk-shaped member secured to the cylinder head. Each disk member is provided with a central hole axially …
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 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2024.
- 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.