Composite rocket motor with integrated composite fins, and method of manufacture
CA 1332027 C · Owner: Societe Europeenne De Propulsion · Inventors: Daffix, Louis; Crapiz, Dino
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A tubular preform (10) fins (30), and fin supports (20), are made independently with the fins and the fin supports, being made by laying fibrous cloth impregnated with polymerizable binder to take up the appropriate shapes and then, polymerizing the binder, whereas the tubular preform is made by winding a thread impregnated with a polymerizable binder. Each fin support has a base integrated with the periphery of the tubular preform, and has fin attachment portions projecting from its base, with the bases of the fin supports and the periphery of the tubular preform being shaped in such a manner as to ensure circumferential continuity of the structure. The fin supports are integrated with the …
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.
Why it's free to use
- Granted September 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 20, 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.