Method of reshaping a gypsum board core and products made by same
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United States of America Patent
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-
Mar 30, 1993
Grant Date -
N/A
app pub date -
Oct 22, 1990
filing date -
Oct 22, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for making gypsum wall board in which during the production of the board pressure is applied to a portion or all of the board surface to reshape, compress and densify the gypsum core to change the shape or contour the face surface of the gypsum board. The pressure must be applied in a systematic fashion to avoid creating lateral shifting or shear stresses in the gypsum core or between the core and paper surface to avoid destroying the paper to gypsum core band. The method can be used to product a cross taper at the cut ends of the board, to produce a decoratively shaped board surface and to densify the entire board core for special gypsum board applications.
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Cited Art Landscape
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