Road structure – process – or apparatus – Apparatus – With in situ means for both comminuting and treating – e.g.,...
Patent
1981-12-10
1983-09-06
Byers, Jr., Nile C.
Road structure, process, or apparatus
Apparatus
With in situ means for both comminuting and treating, e.g.,...
299 37, 173139, E01C 2312
Patent
active
044026293
ABSTRACT:
A pavement breaker including a mobile carrier vehicle is disclosed. A beam is provided having a resonant frequency with a pair of nodes spaced from the input and output ends of the beam and anti-nodes at each end and at the center. An oscillator is fixed to the input end of the beam to vibrate the beam at at least near its resonant frequency. The beam is mounted to the carrier vehicle at the node near the input end of the beam. A weight is superimposed over the beam at the node near the output end and has a bearing surface adapted to bear downwardly against the beam at that node. The weight is coupled to the vehicle to control the vertical position of the weight. A tool depends from the output end of the beam, and strikes the surface on which the vehicle rests at the vibration frequency of the beam as the tool vibrates responsively to vibrations of the beam. The reaction force generated by the tool is substantially absorbed by the weight and not transmitted to the carrier vehicle. The tool is provided with three segments, a middle segment which lies substantially horizontally while the beam is stationary, and forward and rear segments which are inclined upward. The forward section allows the tool to follow the ground, while the orientation of the real tool enhances the breaking action of the tool.
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patent: 4230369 (1980-10-01), Gurries
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Byers Jr. Nile C.
Resonant Technology Company
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