Fasteners for composite material
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United States of America Patent
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-
Apr 30, 2013
Grant Date -
Apr 19, 2012
app pub date -
Dec 5, 2011
filing date -
May 16, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fastener has a shaft, a head at a first end of the shaft, and a point at the other end of the shaft. A first portion of the shaft adjacent the point is threaded. The first portion typically extends about one-half the total length of the shaft. A second portion of the shaft (adjacent the head) is not threaded, but has a plurality of spaced rings. A knurled portion can be provided between the first and second portions, if desired. Conventional symmetrical or asymmetrical thread can be used in the threaded portion, or a three lobe thread can be used.
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Cited Art Landscape
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