Patent Yard Sign in
Expired Canadian patentCanada

Final drive assembly

CA 1054533 A · Owner: David Brown Tractors Limited · Inventors: Hodgson, Eric C.; Alderman, William

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A final drive assembly for an agricultural tractor has a casing in which are journalled the outer end of a half-shaft and parallel to, the half-shaft, a final drive shaft. The two shafts are driveably interconnected by fixed radio speed reduction gearing lubricated by mineral oil contained in the casing. A multi-disc brake can frictionally interconnect the half-shaft and the casing and is operated, via a linkage by a hydraulic slave cylinder housed within the casing and preferably actuated by mineral oil to avoid contaminating the lubricating oil in the event of any leakage from the cylinder.

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

  • Granted May 15, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMay 15, 1979
Term endedMay 15, 1996
Patent numberCA 1054533 A
Classification (IPC)F16H35/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMay 15, 1979Term endedMay 15, 1996

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.