Injection molding machine with self-connecting ejection device
CA 1207965 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 ejection device in a the die closing unit of an injection molding machine in which the ejector piston rod reach-, ing from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half is automatically engaged with, or disengaged from the ejec-, tor plate, in the course of the movement of a die assembly into and out of the operating position in conjunction with, a mechanized die exchange procedure. A connecting socket at the extremity of the piston rod cooperates with a connecting plug on the back side of the ejector plate. A brief interruption of the transfer movement, obtained by means of a stopstart mechanism responsive to the die …
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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 July 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 2003.
- 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.