Hydraulic and earth engineering – Earth treatment or control – Compaction
Reexamination Certificate
2006-09-28
2009-02-10
Lagman, Frederick L (Department: 3672)
Hydraulic and earth engineering
Earth treatment or control
Compaction
Reexamination Certificate
active
07488139
ABSTRACT:
A tamper head having an elongated pyramidal or conical shape is used to construct rammed aggregate piers. The pyramidal or conical shape of the tamper head is more efficient at building up lateral earth pressure and provides for greater economy in the construction of the piers than available with existing methods that rely on tamper heads with flat bottoms and beveled sides.
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Geopier Foundation Company, Inc.
Lagman Frederick L
Ward and Smith P.A.
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