Loading and unloading valves
CA 1099763 A · Owner: North American Car Corporation · Inventors: Lubieniecki, Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An easily sterilizable low profile loading and unloading, valve for mounting at the bottom of a tank includes a flange which is mounted adjacent to an opening in the bottom of the tank. A chamber extends through the flange and a valve plug is, mounted to one of the surfaces of the flange and extend into the tank opening. The valve plug normally closes the chamber in the flange, but is moveable to a position in which the chamber is opened to the tank. A cap is mounted to the other surface of the flange and closes the chamber. This cap may alternatively, either take the form of a closure plate which closes the chamber during transport of the tank, or an adapter assembly which is mounted to …
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
- Granted April 21, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 21, 1998.
- 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.