Thermoforming hollow articles from plastic sheet
CA 1082870 A · Owner: Officine Meccaniche Veronesi S.P.A. (O.M.V.) · Inventors: Padovani, Pietro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the production of hollow finished objects from a strip of plastic material by heat moulding at a moulding station. The strip is heated then fed to the moulding station. At least one object is heat moulded and the moulded object is cut from the strip at the station. The mould is opened but only a distance sufficient to allow further feeding of the strip upon completion of the heat moulding and cutting steps. The strip is fed further so that the portion of the strip from which the object was removed is out of the moulding station and a further heated portion of the strip is in the moulding station. The further feeding step commences as soon as the mould is open. A portion of the …
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.