Radial-ply pneumatic tire with reverse curvature carcass ply
CA 1324563 C · Owner: The Goodyear Tire & Rubber Company · Inventors: Forney, Joseph Mcclellan; Goldstein, Arthur Allen; Loser, Robert Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radial-ply pneumatic tire (200,400) has a carcass (220,420) that has a reverse curvature that is, an, outwardly concave shape, centered about the tire's equatorial plane (EP). A wedge (260,460) of elastomeric material is positioned above or below the belt structure (230,430) of the tire. If positioned above the belt structure, the wedge is used with a carcass cord angle in the range from 65° to 80°. This carcass structure also may be used when the wedge is positioned between the belt structure and carcass. The tire has an aspect ratio less than 75% but an aspect, ratio in the range from 40% to 65% is preferred. The wedge has a shape on its radially inner side that is similar to a …
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 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 2010.
- 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.