Lubrication pump for inter-axle differential
CA 2433824 A1 · Owner: Ziech, James F. · Inventors: Kwasniewski, Dale Lee; Wagle, Lawrence Paul; Ziech, James F.
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 having a lubrication pump is provided. The pump, is disposed between the input and output shafts of the differential within a bore defined by a, side gear coupled to or integral with the output shaft. The pump includes a housing that, defines first and second ports and includes an arcuate groove in a radially outer surface. A, pin extends radially inwardly from the side gear and is received within the groove. The, groove and pin cooperate to enable rotation of the entire pump relative to the side gear and to, thereby exchange the positions of the two ports. In this manner the assembly , provides a, reversible pump that provides lubricant only during …
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 June 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 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.