Plasticizing assembly for use in an injection molding machine
CA 2076480 A1 · Owner: Hehl, Karl · Inventors: Hehl, Karl; Hehl, Karl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a plasticizing assembly for use in an injection molding machine which assembly comprises a low-pressure chamber which contains the feed, screw, connecting means are provided which connect the plasticizing, cylinder or a rear section of a bipartite plasticizing cylinder and connect also the nozzle body or a forward section of a bipartite plasticizing cylinder in part of its length and is secured to the plasticizing cylinder or to its rear section. The forward section enlarges at least the low-pressure chamber. As a result a replacement of the, nozzle body or of the forward section of the plasticizing cylinder can be effected and it is possible to supply energy at a higher rate without …
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 August 20, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 2014.
- 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.