Pneumatic deicing system with protection for super cooled large droplet ice
CA 2204486 A1 · Owner: The B.F. Goodrich Company · Inventors: Rauckhorst, Richard Lawrence Iii; Sweet, David Bert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatic deicing system includes a deicer assembly comprised of an outer layer having a low modulus of elasticity, an inner ply, and a plurality of inflatable members provided therebetween for imposing strain in ice accumulated thereon. The deicer assembly is disposed directly on top of and bonded to the leading edge of an airfoil. The deicer has a plurality of large radius spanwise running inflatable members arranged substantially parallel to the leading edge and a plurality of small radius spanwise running inflatable members arranged substantially parallel to the leading edge and disposed chordwise aft of the large radius spanwise running inflatable members. The small radius inflatable …
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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
- Filed May 5, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2019.
- 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.