Bead construction for a heavy duty pneumatic tire
CA 1081103 A · Owner: Uniroyal G.M.B.H. · Inventors: Trzepaez, Jean; Mirtain, Henri J.; Grosch, Karl A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heavy duty pneumatic tire is provided with bead cores having polygonal cross-sectional configurations. The bead cores are composed of a multiplicity of wires arranged in densely superpositioned parallel layers which are situated on conical generating lines whose common axis concide with the horizontal axis of the pneumatic tire and whose angles of opening are approximately 10°. The axially innermost and axially outermost wires in specified radially inner and radially outer layers lie on centerlines forming angles within selected ranges with the conical lines.
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 July 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 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.
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.