Screwdriver Head
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Nov 18, 2010
app pub date -
Sep 18, 2008
filing date -
Oct 5, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An improved screwdriver head structure having a blade portion and a connecting portion, characterized in that: the blade portion is located on one end of the screwdriver head and has two or more engaging surfaces, wherein each of the engaging surfaces is regularly disposed with a plurality of protruding cones at equal distance, the tip of each of the protruding cones has a touching point, and the touching points of the protruding cones are on the same plane; the connecting portion is located on the other end of the screwdriver head for the connection with a screwdriver handle; and when a user uses the blade portion to fasten a screw, the touching points of the protruding cones on the blade portion fully engage with the screw, thereby providing larger friction and even force distribution.
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