Method and system for selectively emptying or filling a tank
CA 1268443 C · Owner: Fockens, Tallienco Wieand Harm · Inventors: Fockens, Tallienco Wieand Harm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: Method and system for selectively emptying or filling a tank, ABSTRACT, This invention relates to a method and a system for selectively filling or emptying a tank by means of a filling or discharging device for the tank. In accordance with the invention, a passive responder and an aerial element of an electromagnetic detection system are respectively provided in the vicinity of the inlet or outlet of the tank and on the part of the filling or discharging device cooperating with the tank inlet or outlet. The aerial element forms part of a detection system for generating an electromagnetic interrogation field, which detection system generates a signal when detecting a responder. In one …
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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 May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
- 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.