System and method for removing volatile components from an aqueous medium
CA 1297067 C · Owner: Robbins, Lanny A. · Inventors: Robbins, Lanny A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and a method are disclosed for removing dissolved organic impurities, such as gasoline or other hydrocarbons, from contaminated water. The contaminated water is fed into a stripper column operated under a vacuum, to enable the water to enter the column at its boiling point. Steam as a, vaporizing gas, strips the impurities out of the water and the overhead vapor phase is compressed to boost it to a higher pressure, so it can be condensed to vaporize part of the bottoms stream from the column. Since the bottoms stream is mostly water the vapor, generated is the steam used to strip impurities from the water. 34,818-F
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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.