Apparatus for gauge distribution in plastic tubing
CA 1284864 C · Owner: Planeta, Mirek · Inventors: Planeta, Mirek
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The apparatus of the invention provides gauge distribution in extruded plastic tubing so that a more uniform, roll thereof is obtained. The extruded plastic tube usually, blown to increase its diameter and decrease its wall thickness is collapsed and passed through a diametrical slot in a rotor which is rotated about a vertical axis so that any non-uniformity in wall thickness of the tube is distributed as much as possible around its periphery. The upwardly-moving tube passes over a skew member which turns it to move horizontally. Two spaced parallel end rollers are provided between one end of the slot and the rotor periphery, and each engages the tube during a respective 180° of rotation …
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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 18, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2008.
- 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.