Articulated loader steering system

Details Articulated loader steering system Articulated loader steering system

2006-05-12

2009-12-22

Lazo, Thomas E (Department: 3745)

Power plants

Pressure fluid source and motor

Coaxial impeller and turbine unit

C060S469000, C180S442000, C280S089000

Reexamination Certificate

active

07634909

ABSTRACT:
A travel jolt minimizing assembly for use in association with an articulated loader steering environment having a orbitrol pump, and a flow amplifier coupled to the orbitrol pump through a left orbitrol signal and a right orbitrol signal, and a steering cylinder coupled to the flow amplifier. The travel jolt minimizing assembly includes a system for temporarily diverting the left orbitrol signal within a predetermined degrees of a full articulation in a left direction and a system for temporarily diverting the right orbitrol signal within a predetermined degrees of a full articulation in a right direction. The invention further includes a response cushion assembly which minimizes jolts which occur upon a rapid change in direction.

REFERENCES:
patent: 3893377 (1975-07-01), Mannetje
patent: 4405030 (1983-09-01), Wittren
patent: 4640094 (1987-02-01), Wittren
patent: 4940106 (1990-07-01), Pedersen et al.
patent: 4949802 (1990-08-01), Gage
patent: 6655492 (2003-12-01), Juul et al.
patent: 7243494 (2007-07-01), Evans

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