Active differential assembly
CA 2453130 A1 · Owner: Dana Corporation · Inventors: Baxter, Ralph W. Jr.; Sommer, Randy L.; Hunt, William G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An active differential assembly provides speed control of an associated output shaft. A differential case is rotatably mounted within a housing to drive a pair of output shafts extending from the differential case in opposite directions for distributing driving force from the engine to wheels. A pair of planetary gear sets are one each disposed about a corresponding output shaft and includes a planetary ring gear, a sun gear fixed to the output shaft, and a planetary carrier rotatably supporting a plurality of planet gears operatively coupling the planetary ring gear with the sun gear. A brake mechanism is disposed between the planetary ring gear and the housing for selectively braking the …
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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 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2025.
- 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.