Suspension arrangement for a boom assembly mounted on an...

Details Suspension arrangement for a boom assembly mounted on an... Suspension arrangement for a boom assembly mounted on an...

2006-06-15

2008-09-23

Lopez, F. Daniel (Department: 3745)

Power plants

Pressure fluid source and motor

Apparatus having means responsive to or ameliorating the...

C239S164000

Reexamination Certificate

active

07426827

ABSTRACT:
A system for reducing oscillating movement of a boom assembly about a fore-and-aft aligned axis defined by a pivotal connection of a suspension arrangement independent of a carrier frame is provided. The system includes an accumulator, a cylinder actuator mechanically interconnected between the carrier frame and the boom assembly, and a metered orifice connected in fluid communication to restrict a fluid flow between the accumulator and the cylinder actuator. In response to rotation of the boom assembly in a first direction relative to the carrier frame, the system creates a force resisting the rotation of the boom assembly in the first direction. Thereby, the system deadens oscillating pivotal movement of the boom assembly relative to the carrier frame and exerts a biasing force to assist in returning and/or maintaining the boom assembly at a generally horizontal alignment.

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