SCREW
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Nov 13, 2013
filing date -
Aug 31, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A screw includes a positioning member defined on inclined cutting planes of a drilling portion of the screw for allowing a cutting edge constructed at a convergence of the cutting planes to cut stably and efficiently. A main threaded section formed on a shank of the screw is extended to connect with one end of the cutting edge. The positioning member helps the screw fixedly stand on an object. The cutting edge and the cutting planes allow cutting debris to be swiftly and smoothly extruded therefrom into the main threaded section for avoiding the accumulation of considerable cutting debris. Thereby, the screwing resistance is reduced and the drilling speed is promoted. Preferably, the fastened screw is firmly sunk in the object, and the fastening operation is completed successfully.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully