Method of making a moulded body of foam plastics material
CA 1237261 A · Owner: Noel, Marquet & Cie. S.A. · Inventors: Schroder, Ralph; Despineux, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of making a moulded, body of foam plastics material The present invention relates to a method for the manufacture of moulded bodies such as cornices from foam plastics material, the visible side of these bodies being heavily textured or profiled smooth, non-porous and free from separation elements with a, unit weight of less than 200 kg/m3. In the method a thin, elastic, heat-deformable film (3) is inserted between two heated mould portions (1, 2 ) in such a way that the film edges are clamped between the superimposed mould edges of the two mould portions (1 2), a reactive, heat emitting, foaming plastics mixture is introduced through the upper mould portion (1) in such a way that it …
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 May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.