HIGH-STRENGTH THREE-DIMENSIONAL STRUCTURE AND METHOD OF MANUFACTURE
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United States of America Patent
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N/A
Issued Date -
Aug 6, 2009
app pub date -
Dec 22, 2008
filing date -
Dec 21, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A structure including a sheet of material bent along bend lines to form a plurality of walls defining an interior volume having a predetermined cross-section. A fold-out tab portion in one of the walls has a peripheral shape complementary to the predetermined cross-section. At least one side of the tab engages an immediately adjacent, corresponding wall thereby defining the predetermined cross-section. The structure may include a bend line defining a first portion and a second portion of the sheet of material, each portion including a pre-formed bend angle flange. The pre-formed bend of the first portion is aligned with the pre-formed bend of the second portion. A section of the first portion may also overlap a section of the second portion thereby forming a multiple-sheet-thick framework. An oven housing with sidewalls, a top and a back, and a removable bottom adjustably disposed within the oven compartment is also disclosed.
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