Method and device for joining together of tubular plastic products
CA 1333653 C · Owner: Plastilon Oy · Inventors: Stoor, Ralf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention concerns a method and a device for joining together of tubular plastic products (1 2) by, heating the joint faces of the plastic products (1 2), which have been chamfered at least partly in advance and, by passing molten plastic material into the space (4) that is formed between the opposite joint faces. The invention is characterized in that the fixing of the tubular plastic products (1, 2) and the feed of the molten plastic material take place with the aid of a mould tool (5) which is applied onto the space (4) and molten plastic, material is passed rapidly into the hollow space between the mould tool (5) and the joint faces through a feed stub (6) provided in the …
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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 December 27, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2011.
- 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.