Land vehicles: bodies and tops – Bodies – Structural detail
Reexamination Certificate
2009-04-10
2011-11-22
Pedder, Dennis (Department: 3612)
Land vehicles: bodies and tops
Bodies
Structural detail
C180S089140
Reexamination Certificate
active
08061764
ABSTRACT:
The present invention relates to a working machine, in particular a traveling material-handling machine, in particular a hydraulic excavator, comprising a basic machine, a cabin and a cabin arm pivotally mounted on the basic machine, by means of which the position of the cabin with respect to the basic machine can be varied, wherein the cabin arm can be swivelled with respect to the basic machine about a horizontal axis by means of at least one hydraulic actuator, and wherein the cabin is pivotally mounted on the cabin arm via a hydraulic inclination adjustment device. In accordance with the invention, the cabin includes an emergency lowering system, in which an inclination emergency valve is provided for the inclination adjustment device of the cabin, which in a case of emergency lowering provides for alignment of the cabin into a normal position.
REFERENCES:
patent: 2143983 (1939-01-01), Howell
patent: 2349284 (1944-05-01), Kinzelman
patent: 3933262 (1976-01-01), Cresp
patent: 3957165 (1976-05-01), Smith
patent: 4141591 (1979-02-01), Spicer
patent: 5368119 (1994-11-01), Nystrom
patent: 7419023 (2008-09-01), Mieger
patent: 2010/0264694 (2010-10-01), Crawford
patent: 202004019708 (2006-05-01), None
patent: 0118340 (1984-09-01), None
patent: 1300595 (2006-06-01), None
patent: 1488810 (1977-10-01), None
patent: 62008994 (1987-01-01), None
patent: 2007106563 (2007-04-01), None
patent: 2007205100 (2007-08-01), None
patent: 2008002178 (2008-01-01), None
patent: 2009190825 (2009-08-01), None
patent: 2009256102 (2009-11-01), None
patent: 2010116690 (2010-05-01), None
Chenevert Paul
Dilworth & Barrese LLP.
Liebherr-Hydraullikbagger GmbH
Pedder Dennis
LandOfFree
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