Coupling formation for the interfitting of structural elements
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United States of America Patent
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Feb 15, 1983
Grant Date -
N/A
app pub date -
Feb 5, 1980
filing date -
Feb 28, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A structural element, such as a section of a duckboard (e.g. a landing mat) to be removably fastened to a similar section, has one or more edges provided with male coupling formations adapted to be converted into complementary female formations by breaking off a projecting part thereof. The projecting part is generally T-shaped, with its frangible stem rising from the bottom of a preferably dovetail-shaped recess. Such an element can therefore be readily joined to another element having a mortise complementary to the head of the T or a tenon complementary to the recess.
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