Method and apparatus for scrim embedment into wet processed panels
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United States of America Patent
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Mar 1, 2011
Grant Date -
Mar 27, 2008
app pub date -
Sep 21, 2006
filing date -
Sep 21, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A method of producing a paperless gypsum/fiber board from a mixture including reinforcing material particles, calcined gypsum and water. A headbox feeds the mixture into a panel forming area (forming pond) over the upper surface of a continuous forming fabric to form a panel mat. Also, a reinforcing mesh is fed over a transverse member, located over a portion of the forming fabric, and into the forming pond to embed the mesh in the mixture. At least a portion of a downstream end of the transverse member is under a downstream portion of the headbox or downstream of the headbox. Then the panel mat is pressed, the calcined gypsum of the pressed panel mat is rehydrated, and the resulting board is dried.
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