Hydraulically operated loading apparatus with dual three-function joystick controls
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United States of America Patent
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Apr 8, 2008
Grant Date -
Jun 14, 2007
app pub date -
Dec 13, 2005
filing date -
Dec 13, 2005
priority date (Note) -
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Abstract
A control apparatus is provided for operating six hydraulic valves from two different positions. The control apparatus is particularly suitable for operating the hydraulic controls of a six function trash loader. First and second three-function joysticks are mounted at the first position, and third and fourth three-function joysticks are mounted at the second position. A first set of three rotatable rods extends between the first and third joysticks, and a second set of three rotatable rods extends between the second and fourth joysticks. Each joystick includes a handle which is movable along a first axis for rotating a first rod of one of the sets, along a second axis for rotating a second rod of the set, and about a third axis for rotating a third rod of the set. A crank arm on each of the six rods is connected to one of the six hydraulic valves so that rotation of each of the rods operates one of the valves.
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