Powershift gearbox and shifting method therefor

Details Powershift gearbox and shifting method therefor Powershift gearbox and shifting method therefor

2005-07-30

2010-11-30

Estremsky, Sherry L (Department: 3655)

Machine element or mechanism

Gearing

Interchangeably locked

Reexamination Certificate

active

07841252

ABSTRACT:
A powershift gearbox includes a first and a second gearbox block in which respectively one gear from a first or second set of gears associated with each gearbox block can be passed between an input shaft and an output shaft of the gearbox block. The inventive gearbox comprises a slip-free clutch arrangement between each gearbox block and a common drive shaft of the powershift gearbox, that enables the input shaft of the gearbox block to be coupled to the drive shaft either directly or by means of a common slippable clutch.

REFERENCES:
patent: 5761961 (1998-06-01), Krauss et al.
patent: 2004/0224811 (2004-11-01), Vornehm et al.
patent: 4206033 (1993-03-01), None
patent: 19924501 (2000-12-01), None
patent: 10338558 (2004-03-01), None
patent: 1028270 (2000-08-01), None
patent: 2838174 (2003-10-01), None
patent: 0188409 (2001-11-01), None

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