Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine
Patent
1998-05-29
1999-11-16
Bagnell, David
Mining or in situ disintegration of hard material
Automatic control; signaling or indicating
Of hard material disintegrating machine
172 45, 404 845, 56 102E, E02F 376
Patent
active
059844205
ABSTRACT:
A traveling construction apparatus includes a flame having first and second ground engaging traveling gears connected to the frame and spaced apart in a direction of travel. A traveling gear height adjuster is connected between the frame and the first traveling gear. A plurality of height sensors are provided for measuring a height above the ground without engaging the ground. A height controller system is provided for actuating the traveling gear height adjuster in response to input signals from the sensors. A floating boom is connected to the frame and has the sensors mounted on the boom. The boom displaces each of the sensors a substantially equal distance relative to the ground in response to an extension or contraction of the traveling gear height adjuster.
REFERENCES:
patent: 3561538 (1971-02-01), Curlett et al.
patent: 4213719 (1980-07-01), Swisher, Jr. et al.
patent: 5309407 (1994-05-01), Sehr et al.
Wirtgen America Inc., "Cold Mining Machine W1000", Oct. 1994.
Lyons Scott Francis
Murray Stuart W.
Bagnell David
Singh Sunil
Wirtgen America, Inc.
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