Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Reexamination Certificate
2005-06-07
2005-06-07
Safavi, Michael (Department: 3673)
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
Reexamination Certificate
active
06902353
ABSTRACT:
A top block for modular precast retaining wall system wherein beveled surfaces of a horizontal component of the top block form a cast-in-place key integrated with cast-in-place column formed in the construction of the retaining wall using modular block units. The top block provides an aesthetically pleasing front surface the upper edge of which may be rectilinear or contoured to fit various applications and appearance requirements.
REFERENCES:
patent: 3597925 (1971-08-01), Kusatake
patent: 4619560 (1986-10-01), Crinnion et al.
patent: 160928 (1921-03-01), None
patent: 2170258 (1986-07-01), None
Duesenberg William H.
Nelson Ned H.
Garrison David L.
Garrison & Associates PS
Safavi Michael
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