Composite pressurised container with a plastic liner for storing gaseous media under pressure
CA 2309948 A1 · Owner: Rau, Steffen · Inventors: Rasche, Christian; Rau, Steffen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The inventive composite pressurised container for storing gaseous media under pressure has a plastic liner and two neck-pieces located in the neck area. A fibre-composite winding which reinforces the liner is also provided. According to the invention, a screw-in clamping ring (10) is provided in the neck piece (4) which accommodates the valve. Said clamping ring has a threaded section (37) on the outer cover, a thread-free truncated (21) section following on from this threaded section. The annular groove (26) which is located between the inner threaded sections (18) of the neck piece (4) and which receives a sealing ring (23) extends radially into the neck piece (4). The device is …
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 November 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2020.
- 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.