Machine for performing in one single operating cycle the molding and curing of a tread ring for pneumatic tires
CA 1082865 A · Owner: International Property Development Corporation S.A. · Inventors: Marangoni, Carlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine to perform in one single operating cycle the molding and curing of tread rings for pneumatic tyres. It comprises a central drum rotating around its own axis and able to translate parallel to itself, surrounded by a stationary annular carrying structure, carrying radially a plurality of hydraulic or pneumatic double acting cylinders. Each rod of the cylinders is provided at its end facing the drum with a mold carrying platen to which there is fixedly secured the mold which is part of a complete annular form and which may radially translate with synchronous movement either going near, or away from the surface of the said central drum.
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 August 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 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.