Multiple injection moulding
CA 1188062 A · Owner: Maschinenfabrik Koppern G.M.B.H. & Co. Kg · Inventors: Blank, Michael; Hammerschmidt, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multiple injection mould for the manufacture of preforms for the manufacture of flasks by the blast method the mould having a, plate fixed on the nozzle side of the injection moulding machine on which outer moulds are mounted, a core-carrying plate movable within the injection moulding machine and an intermediate plate which is movable relative to the core-carrying plate and on which are arranged pairs of mould end plates each having an internal contour by which the external contour of the socket of the neck of each flask is moulded. Driving means are provided for the intermediate plate by which it can be simultaneously adjusted relative to the core-carrying plate during the opening …
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 June 4, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2002.
- 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.