Air circulating device for mixing room air
CA 1134666 A · Owner: Rusth, Douglas B. · Inventors: Rusth, Douglas B.; Martin, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, An air circulating device for disposition within a room and directing an airstream vertically to mix room air to prevent temperature stratification. A fan and motor assembly supported by a support structure drives the stream of air through a multi-channelled or honeycomb body which removes swirling currents from the airstream and results in a linear airstream effective for a range of several feet. A nozzle increase stream velocity and range.
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 November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
- 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.