Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Reexamination Certificate
2005-07-05
2005-07-05
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
C249S018000, C249S210000, C248S219400
Reexamination Certificate
active
06913422
ABSTRACT:
A shoring post suitable for use with ledger frames uses node sleeves which surround the shoring post. Preferably, the node sleeves are an extruded component with a center cavity that closely conforms to the exterior of the shoring post. The node sleeves are secured in a manner to maintain the center of the shoring post unobstructed. In a preferred form, the node sleeves are mechanically fastened to the shoring post.
REFERENCES:
patent: 4841708 (1989-06-01), Johnston
patent: 5240089 (1993-08-01), Spera
patent: 6059258 (2000-05-01), Jackson
patent: 2136908 (1984-09-01), None
Aluma Enterprises Inc.
Lagman Frederick L.
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