Injection assembly for a plastic injection mould and method for making the assembly
CA 2196337 C · Owner: Delachaux S.A. · Inventors: Ramond, Louis Maurice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An injection assembly for a plastic injection mould includes heating nozzles for injecting a plastic material into the mould with the plastic material , being supplied thereto by a central nozzle from a barrel extruder means for , controlling the nozzles and means for heating the nozzle supply channels. The assembly is characterised in that it has a base (4) bearing a heating distributor (20) provided with injection nozzles (5A) extending through the die (2), said base (4) being a moulded steel or cast iron part with rigidifying ribs and locating supports (13) for the heating distributor (20) which is a moulded steel or cast iron part forming a set of heating passages (26) connected …
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
- Filed May 29, 1996 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2018.
- 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.