Rolling-contact bearing with current bridge
CA 2273141 C · Owner: Skf Gmbh · Inventors: Schweitzer, Ferdinand; Kottritsch, Hubert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a rolling-contact bearing that comprises an inner ring (2) and outer ring (3), and, interposed between these rolling bodies (4), and with, a seal (5) arranged at least on one side of the rollingcontact bearing, said seal serving as a current bridge to eliminate electrical current from between the two bearing rings (2, 3). In order to achieve a transfer of current that is appropriate to the particular application the seal, (5) comprises an essentially flat disk (6) that is of electrically conductive material and is secured on one of the bearing rings (2, 3, respectively) and a ring (9) that, is secured to the other bearing ring (3 2, respectively), the disk …
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 May 27, 1999 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2021.
- 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.