Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Construction or agricultural-type vehicle
Reexamination Certificate
2010-12-23
2011-12-20
Nguyen, Tan Q (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Construction or agricultural-type vehicle
C701S213000, C414S722000, C037S438000
Reexamination Certificate
active
08082084
ABSTRACT:
A loader and a control system for a loader provide for monitoring the position of a part of the implement carried by the loader. The loader has a body with left and right upright tower portions, and a loader drive system including ground engaging drive elements. Left and right interconnected lift arm assemblies each have an implement lift arm pivotally connected with a corresponding tower portion of the body at a lift arm pivot point. A lift actuator is connected between the body and the lift arm. The implement is pivotally connected with the lift arm assemblies about an implement pivot axis. The lift arm pivot point and the implement pivot axis in side elevation define a straight reference line. At least one implement tilt actuator is connected between at least one of the lift arm assemblies and the implement. A position sensor is mounted on the body at the level of, or above, the lift arm pivot points. An inclinometer is movable with the left and right interconnected lift arm assemblies to provide an indication of the inclination of the lift arm assemblies along the straight reference line. An angle sensor provides an indication of the orientation of said implement with respect to said left and right interconnected lift arm assemblies. The control is responsive to the position sensor, the inclinometer, and the angle sensor. The control determines the position of the position sensor and the position of a part of the implement with respect to the position sensor.
REFERENCES:
patent: 4129224 (1978-12-01), Teach
patent: 5854988 (1998-12-01), Davidson et al.
patent: 5964298 (1999-10-01), Greenspun
patent: D419568 (2000-01-01), Baig et al.
patent: 6076029 (2000-06-01), Watanabe et al.
patent: 6109858 (2000-08-01), Deneve et al.
patent: 6171050 (2001-01-01), Johnson
patent: 6249939 (2001-06-01), Kremer
patent: 6253160 (2001-06-01), Hanseder
patent: 6263595 (2001-07-01), Ake
patent: 6470251 (2002-10-01), Enix
patent: 6618659 (2003-09-01), Berger et al.
patent: 6837319 (2005-01-01), Dvorak et al.
patent: 7059422 (2006-06-01), Burgin
patent: 7079931 (2006-07-01), Sahm et al.
patent: 2006/0201007 (2006-09-01), Piekutowski
patent: 2844231 (2006-12-01), None
International Search Report and Written Opinion pertaining to International application No. PCT/US2007/072997 dated Dec. 5, 2008.
Chinese Office Action dated Jul. 22, 2011 pertaining to Chinese Patent Application No. 200880124015.6.
Caterpillar Trimble Control Technologies LLC
Dinsmore & Shohl LLP
Nguyen Tan Q
LandOfFree
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