Encapsulating a hollow three dimensional array of reinforcement elements
CA 1051159 A · Owner: Bridgend Investments Limited · Inventors: Sharp, Herbert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
MOULDING", ABSTRACT OF THE DISCLOSURE The invention relates to a method of producing an article comprising a hollow three dimensional array of reinforcement elements encapsulated in a thermoplastic material whereby a hollow parison, of said thermoplastic material is located within said array of reinforcement elements, said reinforcement array being located in a mould spaced apart from the mould surface and said parison being ex-, panded into conformity with said mould surface to encapsulate said reinforcement by the production of a pressure drop across the wall of said parison.
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 March 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 1996.
- 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.