Guiding element
CA 2598550 C · Owner: H.E.F. · Inventors: Chaduiron, Eric; Barlerin, Jean-Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a guiding element in the form of a ring (1) which is used to mount a shaft (2) with friction and with an articulation and/or sliding capability whereby said element is intended to be mounted in a bore in a support. The invention is characterised in that: the ring and/or the shaft is subjected to a surface hardening treatment at least at the friction surface thereof by means of diffusion or structural transformation followed by a finishing treatment and a treatment designed to reduce seizing tendency and the friction coefficient; the friction surface of the ring (1) formed by the bore (1a) therein, comprises means that can be used to store a lubricant; and 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, and the Claude kit works from them.
Why it's free to use
- Filed February 20, 2006 and granted April 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.