Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Reexamination Certificate
2006-02-07
2006-02-07
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
C405S284000
Reexamination Certificate
active
06994495
ABSTRACT:
A precast concrete retaining wall construction element for retaining a soil mass in a railway installation or the like includes an upstanding solid face panel having the shape of a hexahedron where a rectangular front wall and an integral stem. The front wall defines an area of between about 18.75 and 75 square feet and wherein the ratio of the width of the face panel to its height is between about 0.75 to about 3.0. A reinforced element including an upward extension, an improved shear key and stacked arrangement are also disclosed.
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Carey John M.
Neel Thomas C.
Dennison Schultz Dougherty & MacDonald
Lagman Frederick L.
The Neel Company
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