Drilling tool helical shank formed from a polygonal profile bar
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 10, 2001
Grant Date -
N/A
app pub date -
Nov 24, 1999
filing date -
May 30, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drilling tool, in particular a rock drill, is proposed, which is formed from a drill head, a clamping shank and a helical shank which is located between them. In order to produce a cost-effective drilling tool, the initial material used is a polygonal profile which is provided with a conveying helix groove in the region of the helical shank.
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