Electrically heatable feed nozzle disposed at the end of a hot runner
CA 1234263 A · Owner: Ewikon Entwicklung Und Konstruktion G.M.B.H. & Co. Kg · Inventors: Muller, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The feed nozzle has a central heater rod (1) and casing sections (2) and (3), the heater rod being connected at the upper end with the casing section (3) and at the lower end through a fork (8) with casing section (2). The casing sections are insulated from each other by means of washers (4) and (5) and define an annular flow channel (15) for the plastic mass that is introduced into the channel at the upper end, and passes out at the lower end through outlets (14) into the feed orifice of an injection mold. The feed nozzle has two tips (11) at the lower end each of which extends into a feed orifice or into the vicinity of a feed orifice of an injection mold. Thus using the feed, nozzle tow …
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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 March 22, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 22, 2005.
- 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.