Road structure – process – or apparatus – Apparatus – Automatic control
Reexamination Certificate
2011-05-24
2011-05-24
Addie, Raymond W (Department: 3671)
Road structure, process, or apparatus
Apparatus
Automatic control
C404S083000, C404S084050, C404S084200, C404S094000, C404S096000
Reexamination Certificate
active
07946788
ABSTRACT:
In a road construction machine (1) for the treatment of road surfaces with a milling drum (3) height-adjustable with regard to the milling depth, with a leveling device (4) with at least one controller (6a,6c) which receives set values for the milling depth and/or the slope of the milling drum (3), and with at least one exchangeable sensor (A, B, C) or with several switchable sensors for registering the current actual value of the milling depth and/or the slope of the milling drum (3) relative to a reference surface, where the controller (6a,6c) effects a milling depth control and/or a slope control for the milling drum (3) conditional on pre-determined set values and the currently measured actual values of the at least one sensor (A, B, C) by returning an adjustment value for achieving or maintaining the set value during the milling operation, where the leveling device (4) is provided with an indication and setting device (2) for indicating and setting operating parameters for the at least one sensor (A, B, C), it is provided that the indication and setting device (2) of the leveling device (4), in addition to an indication and setting unit (2a,2c) provided for the at least one sensor (A, C) currently in use, is provided with an additional indication and setting unit (2b) for a selectable sensor (B) that is to be exchanged for the sensor (A, C) currently in use.
REFERENCES:
patent: 4140420 (1979-02-01), Swisher et al.
patent: 4186968 (1980-02-01), Barton
patent: 4270801 (1981-06-01), Swisher et al.
patent: 4929121 (1990-05-01), Lent et al.
patent: 5318378 (1994-06-01), Lent
patent: 5378081 (1995-01-01), Swisher, Jr.
patent: 5533790 (1996-07-01), Weiland
patent: 7422391 (2008-09-01), Holl et al.
patent: 2002/0192025 (2002-12-01), Johnson
patent: 2004/0247388 (2004-12-01), Lloyd
patent: 2008/0152428 (2008-06-01), Berning et al.
patent: 92 04 614 (1992-07-01), None
patent: 1 154 075 (2001-11-01), None
Hähn Günter
Jurasz Jaroslaw
Tewes Günter
Addie Raymond W
Beavers Lucian Wayne
Waddey & Patterson , P.C.
Wirtgen GmbH
LandOfFree
Road construction machine, leveling device, as well as... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Road construction machine, leveling device, as well as..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Road construction machine, leveling device, as well as... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2652793