Method and apparatus for changing a die ring from the die in an indirect extrusion press
CA 1103207 A · Owner: Wean United, Inc. · Inventors: Boshold, Raymond F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and device for changing a die ring to and from a die in an indirect extrusion press. Once the die ring assembly is exposed from the container of the press the, changing device conqisting of rotating arm having opposed relatively movable jaws is caused to engage the die ring and remove it from the extrusion axis of the press and after, treatment, if necessary, to return it to the extrusion axis and place it on 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 June 16, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 1998.
- 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.