Work machine with supplemental power steering

Details Work machine with supplemental power steering Work machine with supplemental power steering

2007-01-30

2007-01-30

Kershteyn, Igor (Department: 3745)

Power plants

Pressure fluid source and motor

Apparatus having means responsive to or ameliorating the...

C060S405000, C060S430000, C060S487000

Reexamination Certificate

active

11016423

ABSTRACT:
A steering system for a work machine having a hydrostatic transmission is disclosed. The steering system has a primary source of pressurized fluid and a steering control valve. The steering system also has a first fluid passageway fluidly connecting the primary source of pressurized fluid to the steering control valve and a second fluid passageway fluidly connecting the hydrostatic transmission to the steering control valve.

REFERENCES:
patent: 3940931 (1976-03-01), Renfro et al.
patent: 3952511 (1976-04-01), Turner et al.
patent: 4700794 (1987-10-01), Bernhagen et al.
patent: 4798256 (1989-01-01), Fassbender
patent: 4942935 (1990-07-01), Lech
patent: 5022481 (1991-06-01), Carter
patent: 5069037 (1991-12-01), Sakigawa et al.
patent: 5165233 (1992-11-01), Betz
patent: 5381987 (1995-01-01), Carns

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