Tire bead ring comprising round wire disposed in the shape of a parallelogram and a tire incorporating said bead
CA 2022160 A1 · Owner: Harrison, Danny Edward · Inventors: Harrison, Danny Edward; Assaad, Mahmoud Cherif
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tire bead ring comprising round wires laid down in a parallelogram shape having an acute angle of 75-90° is provided. The bead ring of the invention when employed in a tire at a lay angle of 5-15° provides a means for spreading out or dissipating twisting forces or torques encountered by the bead area of the tire to prevent separation of the bead from the rim during inflation and loss of air because of the flexing of the tire during running. Also when the, bead comprises multiple turns of a single round wire a, bead having reduced weight and good strength and uniformity may be provided.
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 July 27, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2012.
- 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.