Injection molding nozzle having multiple thickness heating element and method of manufacture
CA 1261576 A · Owner: Gellert, Jobst Ulrich · Inventors: Gellert, Jobst U.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an injection molding nozzle having an improved heating element configuration in the tapered nose portion and a method of making it. A longitudinal portion of the heating element which is integrally brazed centrally into the nose portion is bent back upon itself at least once to provide a multiple thickness part. The type and length of the multiple thickness part which is selected to provide additional heat depends upon the application which the nozzle is to be used for. The multiple thickness part of the heating element is swaged to provide a more circular cross-section before being brazed into a larger diameter part of the heating element bore through the nose …
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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.