Blower mounting arrangement for forced air furnace
CA 2126923 C · Owner: Carrier Corporation · Inventors: Beck, Scott A.; Swilik, Robert C. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A forced air furnace has its blower mounted on a blower shelf beneath the heat exchanger, by screws that enter aligned clearance holes in the blower mounting flanges and blower shelf and which engage gripper holes in a bottom lip of the vertical sell panel that serves as the proximal wall of the furnace heat exchanger cell. This provides vertical support for the blower and absorbs stresses from up-and-down motion.
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
- Filed June 28, 1994 and granted April 8, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 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.