Road structure – process – or apparatus – Apparatus – Material distribution means
Patent
1998-06-19
2000-09-05
Lillis, Eileen Dunn
Road structure, process, or apparatus
Apparatus
Material distribution means
404 8405, 404 86, E01C 1912
Patent
active
061133108
ABSTRACT:
A material spreading apparatus for filling recesses in a generally horizontal surface with a filler material is movable in a forward direction over the generally horizontal surface so as to define a coverage path thereon. The coverage path is comprised of multiple parallel treatment zones. The material spreading apparatus includes a frame, a sensor for sensing the presence of a recess in a generally horizontal surface, and a filler for filling recesses sensed by the sensor. In some embodiments, the sensor includes multiple mechanical sensors supported by the frame. One of the sensors is located in each of the treatment zones and is responsive to the presence of a recess and its associated treatment zone. In some embodiments, the filler includes a retainer and a counter rotating applicator drum. The container releasably holds a portion of the filler material and deposits material onto the counter rotating drum when the sensor senses a recess. The counter rotating drum urges filler material deposited thereon towards a sensed recess. In other embodiments, the sensor is movable with respect to the filler so as to change the distance between the sensor and the filler. A speed sensor triggers an actuator to move the sensor further from the filler when the forward speed of the material spreading apparatus exceeds a predetermined speed limit.
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Addie Raymond W
Lillis Eileen Dunn
LandOfFree
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