Road structure – process – or apparatus – Apparatus – Means to agitate material
Patent
1997-01-16
1999-02-09
Lisehora, James A.
Road structure, process, or apparatus
Apparatus
Means to agitate material
404118, E01C 1938
Patent
active
058685227
ABSTRACT:
A screed assembly is disclosed for an asphalt paving machine that is used to pave the surface of a roadway with asphalt concrete paving material. This screed assembly includes a frame portion that is adapted for attachment to the paving machine, and a vibratory screed portion that is adapted for attachment to the frame portion. The vibratory screed portion includes a screed plate that is disposed towards the surface of the roadway, and a vibratory assembly which is mounted to the screed plate so as to impart vibration thereto. This vibratory assembly includes an elongate shaft, means for rotating the shaft, and an eccentric weight that is mounted on the shaft, which weight has a non-symmetrical distribution of mass about the shaft so that vibration will be created upon rotation thereof. The screed assembly also includes means for isolating the vibratory assembly so as to limit the transmission of vibration created thereby to the frame portion.
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Astec Industries Inc.
Lisehora James A.
LandOfFree
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