Annular friction-clutch facing for a multi-disk clutch
CA 2325221 A1 · Owner: Borg-Warner Automotive Gmbh · Inventors: Kohler, Josef; Merkel, Harald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An annular friction-clutch facing (30) for a multi-disk clutch (10) includes an inner edge, (32) and an outer edge (34) defining a width (w) of the facing (30). The facing (30) further, includes a first group of grooves (136 236) formed on the facing (30) and , having a first crosssectional area. Each groove of the first group (136 236) has a first opening , (38) at the outer edge (34) and a second opening (40) at the inner edge (32) remote from the first opening (38), and is adapted to direct lubricating agents across the width (w) over a substantial area of the, facing (30). The facing (30) further includes a second group of grooves (42) formed on the, facing (30) and having a second …
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 November 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2022.
- 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.