A method and device for filling plastic bottles
CA 2282799 A1 · Owner: Buchel, Hans · Inventors: Buchel, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and device for filling plastic bottles whereby a dispensing/suction nozzle (1) is inserted into the mouth (2) at the top of a bottle. The nozzle (1), dispenses a liquid to fill the bottle and at the same time sucks out the air contained inside the bottle. As the bottle is filled the nozzle (1) has a, frustoconical surface (6) which is made of steel, that fits tightly against an, edge of the mouth (2), forming an air-tight seal around the mouth by virtue of which seal the pressure inside the bottle can be less than the pressure in the external environment.
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 21, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2021.
- 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.