Hot channel injection moulding die
CA 2217022 C · Owner: Schottli Ag · Inventors: Manz, Willi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The hot channel die (1) is arranged within a casing (13) filled with oil. In the hollow space (15) filled with oil baffles (17, 19) are installed which , effect a current of the oil directed toward the two ends of the nozzle (1). For this purpose, the, heating element (23) is arranged on the underside of the die (13). The discharge sleeve (117) which introduces the liquid plastic from the feeding screw, discharges into the hollow body (115) which is mounted in a , recess in, the hot runner plate (105) of a hot channel injection molding die. The distribution, conduits (119), which are constructed as curved tubes are installed on the , discharge, sleeve (117) and lead to the side wall …
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 February 5, 1997 and granted August 20, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2019.
- 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.