Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Reexamination Certificate
2006-03-28
2006-03-28
Lee, Jong-Suk (James) (Department: 3673)
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
C405S278000
Reexamination Certificate
active
07018140
ABSTRACT:
An improved Z-shaped sheet piling (15) comprising a first flange (16), a second flange (18), a web (19), a junction (20) between the first flange and the web, the junction having an inner surface (44), the inner surface defined by at least a first radius (23a) and a second radius (23b). The inner surface may be further defined by a third radius (23c). The sheet piling may comprise a first flange (16) having a substantially planar flange surface (37), a second flange (18), a web (19) having a substantially planar web surface (39), a junction (20) between the first flange and the web, the junction having a fillet portion (43) defined by the planes of the web surface and flange surface extended to an intersection (59) and an inner substantially arcuate surface (44) intersecting the web surface and flange surface, the inner arcuate surface defined by at least a first radius (23a) and a second radius (23b). The inner arcuate surface may be further defined by a third radius (23c).
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patent: 2004/0126193 (2004-07-01), Moreau
patent: 367171 (1990-05-01), None
Chaparral Steel Company
Lee Jong-Suk (James)
Phillips Lytle LLP
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