Multipin machining head for machining composite materials, such as carbon
CA 2084815 C · Owner: Schmidt, Bernard Georges James · Inventors: Jousset, Michel; Schmidt, Bernard Georges James; Suave, Gerard Daniel Antoine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The machining head of the invention is able to drill a large number of holes spaced regularly on a part made of a composite material having a large surface, such as carbon. It is equipped with electropins (5) rotating at high speed (forty thousand r.p.m) cooled via oil circulation. Suction means for sucking up dust resulting from machining are provided around drill bits (7). Means (20) for supporting the part (11) to be machined are provided so as to ensure that the part does not vibrate via the high speed of rotation of the drill bits (7). Application for the perforation of the acoustic skins of turbojet engines.
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 December 8, 1992 and granted May 14, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2014.
- 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.