Gas cylinder connection
CA 2204285 A1 · Owner: Townsend, Paul Nicholas · Inventors: Townsend, Paul Nicholas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A connector for connecting a breathing gas cylinder to a respiratory device is described. Instead of the normal screw connection a bayonet fitting is used. In embodiments, a male connector 100 is fitted to the respiratory device. It has a stud 4 and a handwheel 8 which rotates around the stud 4. Pins 9 extend into the interior of the handwheel 4 and engage with the mounting flange 33 of a female type connector 110 which is connected to a cylinder valve 2 of a compressed air cylinder.
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 April 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2019.
- 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.