Method and apparatus for building a closed torus tire
CA 1069423 A · Owner: Goodyear Tire And Rubber Company (The) · Inventors: Stalter, Joseph F. (Jr.)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for building a closed torus pneumatic tire in which the components of the tire exclusive of the belt and tread structures are wrapped, about a cylindrical former inextensible bead rings, are positioned about the former in positions spaced axially apart substantially the same as the final desired axial spacing. The former is radially expanding and expands the carcass structure to clampingly engage the bead rings. Each axially outer end portion of the carcass structures is folded over toward the axial centerplane of the drum in a manner in which the carcass is free of internal restraint at the fold. Each axially outer end of the folded over end portion of the carcass …
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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
- Granted January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.