Method and apparatus for manufacturing load bearing fabric support structures
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United States of America Patent
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Nov 17, 2009
Grant Date -
Feb 15, 2007
app pub date -
May 11, 2006
filing date -
Aug 12, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for manufacturing load bearing fabric structures in which the peripheral edge of the load bearing fabric terminates with the mold cavity. The apparatus includes a stretching assembly for stretching the fabric, a fabric retaining assembly for holding the fabric in the stretched condition and a mold assembly for molding the frame about the periphery of the fabric. The method includes the steps of gripping the peripheral edge of the fabric in a stretching assembly, activating the stretching assembly to stretch the fabric in a location adjacent to the mold assembly, clamping the stretched fabric against a face of the mold assembly, releasing the peripheral edge of the fabric from the stretching assembly, moving the stretching assembly from the path of the mold assembly, closing the mold assembly on the fabric with the peripheral edge of the fabric terminating in the mold cavity and injecting molten material into the mold cavity to form the frame directly on the peripheral edge of the fabric.
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