Collapsible air deflector
CA 1287771 C · Owner: Dworak, Grzegorz J. · Inventors: Dworak, Grzegorz J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A collapsible air deflector for use with floor register commonly found in forced air heating and cooling systems has a plastic film body having two side walls joined by a curved back wall a piece of elastic stretched, between the side walls and a stiffener attached to the upper edge of the back wall. To secure the air deflector to the floor register the lower edge of the back wall, the lower edges of the both side walls and the elastic are slipped under the floor register top rim. When the air is blown through the floor register it inflates the collapsible air deflector the curved back, wall directs the forced air along the floor and this results in good mixing of forced air with the …
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 August 20, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2008.
- 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.