Tamping shoe of a vibration rammer

Details Tamping shoe of a vibration rammer Tamping shoe of a vibration rammer

1992-06-16

1993-11-16

Bui, Thuy M.

Road structure, process, or apparatus

Apparatus

Tamper

404117, E01C 1900

Patent

active

052617629

ABSTRACT:
A tamping shoe for a vibration rammer has a plurality of through holes communicating between an under surface and an upper surface. The through holes permit the escape of air trapped between the under surface and a surface being tamped, and thereby reduce the amount and pressure of air compressed under the tamping shoe. This reduces noise pollution produced during tamping. In a preferred embodiment, the through holes are tapered outward in the direction of air flow. Air passing through a through hole in a mount is released through a further through hole bored through a wall of the mount.

REFERENCES:
patent: 2771012 (1956-11-01), Jackson
patent: 4382715 (1983-05-01), Vural et al.

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