Rotary roll type extruder
CA 1307636 C · Owner: Harada, Jumei · Inventors: Harada, Jumei; Sorioka, Michitoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary roll type extruder which performs shaping of material to be extruded such as raw rubber or the like by ejecting the material to be extruded through a mouth piece by means of an extruding roll. This extruder comprises mouth piece moving means for moving a mouth piece in a radial direction of an extruding roll to make the mouth piece approach to or separate from the circumferential surface of the extruding roll, mouth piece positioning means for positioning the mouth piece under the condition where the mouth piece is held apart from the extruding roll and mouth, piece stocking means for preliminarily stocking various kinds of mouth pieces. Shaping of the material to be extruded is …
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
- Granted September 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 2009.
- 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.