Apparatus for mixing a gas and a liquid
CA 1110786 A · Owner: Aeration Industries, Inc. · Inventors: Durda, Daniel J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for mixing a gas and a liquid is disclosed. The apparatus is comprised of a hollow outer tube and a hollow inner tube received coaxially within the outer tube. The inner tube is mounted for rotary motion with the hollow interior of the outer tube. A motor is attached to the outer tube adjacent a first end thereof and is drivingly coupled to a first end of the inner tube. The inner tube has a section which extends beyond the second end of the outer tube. A propeller is attached to this section of the inner tube for rotation therewith. The propeller is adapted to be placed in a liquid and propel the liquid in which the propeller rotates. An inlet is formed in the inner tube for …
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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 October 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 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.