Drum bung adapter
CA 2312677 A1 · Owner: Hansen, Mark G. · Inventors: Hansen, Mark G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adapter is used for the removal of liquid contents from storage drums. The adapter has a bung body that threads into the normal bung hole of the, storage drum and is sealed to the drum head. A hose fitting on the bottom of the, bung body is connected to a suction hose that extends to the bottom of the drum. On, the top of the bung body is a quick release valued fitting. The bung body , also has a vent to admit air into the drum as liquid is withdrawn from it. The vent is equipped, with a spring-loaded check valve so as to be normally closed.
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 June 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 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.