Road structure – process – or apparatus – Apparatus – Tamper
Patent
1976-01-02
1978-04-04
Byers, Nile C.
Road structure, process, or apparatus
Apparatus
Tamper
91231, 173139, 173134, E01C 1935
Patent
active
040824713
ABSTRACT:
A hydraulic impact tool providing improved force absorption for facilitated manipulation by an operator. In the illustrated embodiment, the tool comprises a tamper which provides substantial tamping force with minimum vibration and uncontrolled bounce. The tool utilizes a hydraulic power system for improved noise reduction and minimizaton of fatigue. The tool provides a forward stroke wherein the force is applied for a preselected time, and a retraction stroke wherein the moving elements are retracted to a preselected position. The tool is adapted for use with a wide range of load resistances.
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Byers Nile C.
Imperial-Eastman Corporation
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