Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Reexamination Certificate
2007-08-21
2007-08-21
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
C405S272000, C405S283000
Reexamination Certificate
active
11530974
ABSTRACT:
Improved shoring systems and methods are disclosed. In one embodiment, a shoring system includes first and second opposing side walls. A manifold is pivotally connected to the first side wall and is pivotally moveable between a shielded position and an exposed position. In the shielded position, the manifold is at least partially covered by a shield. In the exposed position, the manifold is pivoted upward to expose components of the manifold, such as hydraulic inlets and outlets, valves, and hydraulic fluid lines. The shoring system is safer, easier, and more efficient to operate than conventional shoring systems.
REFERENCES:
patent: 5096334 (1992-03-01), Plank
patent: 5209606 (1993-05-01), Plank
patent: 5232312 (1993-08-01), Jennings et al.
Cerda Industries, Inc.
Lagman Frederick L.
Steele Patrick K.
Streets & Steele
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