Sidewalk and slab lifting system

Road structure – process – or apparatus – Process – In situ treatment of earth or roadway

Reexamination Certificate

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Details

C404S075000, C404S101000

Reexamination Certificate

active

07461997

ABSTRACT:
A tube body having open upper and lower ends and a cylindrical bore there between has an opening along the length thereof. A driver is secured to the tube body adjacent to the upper end. A push rod has a free end. The free end is adapted to move downwardly to an advanced orientation adjacent to the lower end and upwardly to a retracted orientation above the opening. A control component with an operator controlled handle is adapted to move the ram. A funnel is secured to the tube body. The funnel is adapted to feed particulate material into the bore when in the retracted orientation and from the bore when in the advanced orientation.

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