Patent · US Expired

Power takeoff shaft for a farm tractor

US4776226A · kind A · utility

6Cited by
4References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 8, 1987
Grant dateOct 11, 1988
Priority date
Expiry dateApr 8, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/1947
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A power takeoff mechanism for a farm tractor with two interchangeable power takeoff shafts which can be driven at different speeds and are connected by means of annular flanges of different diameters with a driving flange on the end of an output shaft wherein a pawl is pivoted near the driving flange and is connected to a clutch lever of the gear shifting mechanism whereby the pawl must be pivoted to a predetermined position when one of the power takeoff shafts is installed, thereby preventing the clutch lever from being operated in a manner to select an inappropriate speed for the installed power takeoff shaft.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.