Ring cutter for tunnel drilling in rock
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 19, 1993
Grant Date -
N/A
app pub date -
Jul 30, 1992
filing date -
Jan 26, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
A cutter head for drilling tunnels in rock includes a rotational body with a dove-shaped groove. A cutter ring formed of two substantially identical ring halves is clamped inside the groove by a clamping ring. Pins on the cutter ring extend into corresponding holes in the groove.
Loading the Abstract Image...
OK
First Claim
Family
Loading Family data...
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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