Injection unit for a plastic injection moulding machine
CA 2409867 A1 · Owner: Dantlgraber, Jorg · Inventors: Dantlgraber, Jorg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an injection unit for a plastic injection moulding machine, comprising an endless screw; a screw drive mechanism in the form of a first driving element via which said screw can be driven in a rotating manner for plastication and can be moved along the axis for injection; a spindle nut as a second driving element, which is coupled to the screw drive mechanism via the thread of the screw; a large fixed electric motor by means of which one , driving element can be driven in a rotating manner so that the screw can be moved during injection, while the other driving element is rotationally blocked; and a fixed device, by means of which the speed of one driving …
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 April 28, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 28, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2023.
- 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.