Low energy screws for wood and similar materials
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United States of America Patent
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Mar 29, 2016
Issued Date -
N/A
app pub date -
Mar 16, 2010
filing date -
May 22, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A low energy wood screw that may be inserted quickly and using less energy than conventional screws. In various embodiments, the screw may include a countersunk head having a recess for accommodating a driving tool, a tapered neck, a plurality of crown ribs extending over the head and neck, a lubricating coating, main threads with a large thread lead, and lower threads having an asymmetrical profile and extending onto a gimlet point.
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Cited Art Landscape
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