Press for the forming of a composite piece having fibreus reinforcment in a polymer matrix
CA 2104445 C · Owner: Aerospatiale Societe Nationale Industrielle · Inventors: Augereau, Joel; Dittberner, Jean-Jacques; Bretagne, Joel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The press includes a fixed lower tray (2) and a mobile upper tray (3) associated to a vertical displacement cylinder (4). A mould (5) corresponding to the part to be obtained is placed on the lower tray (2) using a heat insulating unit (7) the mould (5) comprising channels (8) for the circulation of a heat exchange fluid. The material (6) to be moulded is placed on the mould. The upper tray (3) carries an assembly (15) including an elastic membrane (16) whose outline is sandwiched between a lower frame (17) and a cover (18) connected to a pressurised fluid source the seal between the said membrane and the cover ensured by the pressure of the torque between the two parts which result on 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
- Filed August 19, 1993 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2015.
- 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.