Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate
2009-10-15
2011-10-11
Lagman, Frederic L (Department: 3672)
Hydraulic and earth engineering
Foundation
Columnar structure
C405S244000, C405S251000, C405S253000
Reexamination Certificate
active
08033757
ABSTRACT:
Disclosed in this specification is a method and apparatus for placing a helical pile in the soil with minimal disturbances to the soil. The helical pile has an elongated pipe with a central chamber. The pipe has a helical blade with an opening in the trailing edge of the blade where grout is extruded. The grout fills those portions of the soil which were disturbed by the blade. Advantageously, those portions of the soil which were not disturbed by the blade are not infused with grout.
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Hiscock & Barclay LLP
Lagman Frederic L
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