Static structures (e.g. – buildings) – Means compensating earth-transmitted force – Cross bracing
Reexamination Certificate
2007-12-11
2007-12-11
Mai, Lanna (Department: 3637)
Static structures (e.g., buildings)
Means compensating earth-transmitted force
Cross bracing
C052S167100, C052S167800, C052S749100, C052S749100, C052S749100, C052S749100
Reexamination Certificate
active
10405424
ABSTRACT:
A brace apparatus having a core member adapted to absorb energy by undergoing plastic deformation and a buckling restraining assembly that maintains the structural integrity of the brace apparatus once the core member has undergone plastic deformation. A core member having a variable width middle portion is provided to control deformation of the core member such that the middle portion center undergoes plastic deformation before the middle portion first and second ends. A core member is provided which includes a core stiffener permitting the brace apparatus to have a longer longer length relative to the core member cross-sectional area while providing both a desired yield point and the stiffness needed rigidity required for structural support. One or more projections are provided having a stress reduction voids which reduce the cross sectional area of the core member to eliminate stress risers that would otherwise be present at the portion of the core member corresponding with the projections.
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Hinchman Andrew J.
Smelser James M.
A Phi Dieu Tran
Mai Lanna
Metcalf Intellectual Property Law, LLC
SME Steel Contractors, Inc.
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