Method for moulding thermoplastics objects
CA 1089612 A · Owner: Iguzzini S.P.A · Inventors: Guzzini, Giannunzio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
METHOD FOR MOULDING THERMOPLASTICS OBJECTS ABSTRACT OF THE DISCLOSURE.-, This invention relates to a method for the single-piece moulding of thermoplastics objects with an internally hollow structure connected to the outside through at least one relatively small aperture. The method according to the invention comprises the following steps : preparing a cylindrical preform open at one flanged end and closed by a base wall at the opposite end, locating the preform in a mould having an internal shape corresponding precisely to the shape of the object to be obtained; connecting a pipe head to the flanged end of the preform; feeding a hot aeriform fluid through the pipe to accomplish blow …
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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 November 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 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.