Injection molding unit
CA 1254013 A · Owner: Hehl, Karl · Inventors: Hehl, Karl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An injection molding machine includes an injection mold assembly, an injection molding unit, and a drive for inserting the injection molding unit on and withdrawing it from the injection mold assembly. The injection molding unit includes a carrier block, a plasticizing cylinder projecting into a central longitudinal bore of the carrier block a feed, screw coaxially received in the plasticizing cylinder and a, coupling for releasably axially immobilizing the plasticizing cylinder in the carrier block. The coupling has a plurality of locking bolts radially slidably supported on radial guide faces of the carrier block. The locking bolts have a locking position in which they project into a …
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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 May 16, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 16, 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.