Cement board having reinforced edges
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 10, 1990
Grant Date -
N/A
app pub date -
Dec 27, 1988
filing date -
Feb 20, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cement board having bare surfaces and a mesh of reinforcing fibers underlying the top, bottom, and longitudinal edge surfaces is made continuously on an improved apparatus which comprises a pair of edger rails which slidably rest on a conveyor belt and define the path of the cement board being made on the conveyor belt and a means for folding and pressing outer margins of the bottom mesh into the edge surfaces and the top surface.
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