Control system for filling tanks with saturated liquids
CA 2113845 A1 · Owner: Farkas, Edward J. · Inventors: Farkas, Edward J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention described in the patent is an automatic control system which provides monitoring, supervision and control of the process of filling, of a tank or container with a liquid where at the temperature of operation, the vapour pressure of the liquid is at or above atmospheric pressure. The invention provides an improved method of carrying out the process of filling of tanks with liquids such as ammonia chlorine, propane, liquefied, petroleum gas or any other liquid with high vapour pressure at the temperature of operation. The main advantage provided by the apparatus and method of the present invention is that there is offered an improved method for automatically stopping the filling …
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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
- Filed January 20, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 2016.
- 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.