Process and machine for producing lightweight thermoplastic composite products in a continuous manner
CA 2492560 C · Owner: Borazghi, Hossein · Inventors: Borazghi, Hossein
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine and a process for producing lightweight thermoplastic composite products in a continuous manner is disclosed. An oven is provided for heating a dry unconsolidated fabric sheet of commingled fibers of thermoplastic and re-enforcing fibers or carbon fibers to a temperature sufficient to ensure melting and flow of the resin in the voids of the commingled fibers. The unconsolidated composite sheet is conveyed through the oven and then through a first pair of heated rollers at an outlet of the oven whereby to maintain the fabric sheet heated to prevent abrupt cooling at the surfaces while compressing it under pressure. A further pair of rollers at a further reduced temperature 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
- Filed January 13, 2005 and granted November 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 13, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.