Nail driving system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 20, 1998
Grant Date -
N/A
app pub date -
Apr 28, 1995
filing date -
Jul 18, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Wallboard having a skin outer surface is attached to wall and ceiling framing by nails having heads with a convex bottom surface and a concave top surface. A driver blade is used having an outer end with a shape complimentary to the concave nail top surface and a diameter which is larger than the nail head such that no sharp edges are presented to the wallboard skin around the nail head, thereby avoiding cutting the paper skin.
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Family
International Classification(s)
Cited Art Landscape
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