Automatic mold exchange type injection molding machine
CA 2057893 A1 · Owner: Haga, Kenji · Inventors: Minegishi, Hitoshi; Ito, Susumu; Haga, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An injection molding machine of an automatic core change type comprises a mold clamping section (2) including stationary and movable platens (3 4) fitted, with first and second matrixes (11 21) of a mold, respectively, a mold changing robot (6) and a mold stocker (7) severally attached to the mold clamping section and separately controlled by means of a control section (5), and a temperature controller (8) for controlling the respective temperatures of the first and second matrixes and the mold stocker. As an arm (61) and a chuck (62) moves and rotates respectively a first cavity unit (12), attached to the first matrix is taken out from the first matrix, transported toward the mold stocker, …
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 March 22, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2013.
- 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.