Lubication pump for inter-axle differential
CA 2427642 A1 · Owner: Kwasniewski, Dale · Inventors: Kwasniewski, Dale; Ziech, James F.; Wagle, Lawrence P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inter-axle differential assembly (10) comprises an input shaft (14) an , output shaft (30) arranged coaxially with respect to each other a , differential gearing and a dedicated reversible lubrication pump (50) disposed between the input and output shafts. The reversible gerotor type lubrication pump (50) includes a rotor (52) driven by the input shaft (14) and an , impeller (52), both disposed within a pump body (56) coupled to a side gear drivingly connected to the output shaft (30). Thus the lubrication pump (50) , generates lubricant flow only during the differential action between the input shaft and the output shaft, i.e. when needed. An oil flow generated by the lubrication …
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 27, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2023.
- 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.