Method for making a building board
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Oct 18, 2001
app pub date -
Mar 26, 2001
filing date -
Dec 5, 1996
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a method for making a building board, exhibiting a board body which is formed with a gripping stud, and a metal strip which extends from the body and from which are formed gripping elements, which are bent round the gripping stud for mechanical fastening of the strip to the body, as well as a locking element for enabling mechanical joining of the board to similar boards. The method is characterized by preforming the gripping elements of the strip prior to bending them round the gripping stud, and subsequently bending the preformed gripping elements ground the gripping stud, the preforming being such that, as a result of the bending, the preformed gripping elements strike against the gripping stud and thereby undergo a deformation in the opposite direction to the preforming during a final stage of the bending.
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