Seismic rack with extension subassembly
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United States of America Patent
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Jan 30, 2001
Grant Date -
N/A
app pub date -
Aug 30, 1999
filing date -
Aug 30, 1999
priority date (Note) -
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Abstract
A rack assembly for mounting telecommunications equipment and adapted for withstanding seismic forces includes a main frame subassembly including an upper horizontal support member, a lower horizontal support member, a first vertical support member, and a second vertical support member spaced in parallel relation to the first vertical support member. The first and second vertical support members each have a double-bend profile, defined by an inside base portion, a first medial leg and a second medial leg each extending substantially orthogonally from the inside base portion, a first distal leg extending substantially orthogonally from the first medial leg in a direction towards the second medial leg, and a second distal leg extending substantially orthogonally from the second medial leg in a direction towards the first medial leg. An extension frame subassembly is securely attached to the upper horizontal support member of the main frame subassembly. The extension frame subassembly includes vertical frame members having the same double-bend profile as the first and second vertical support members of the main frame subassembly.
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