Revolving cutters for rock bits
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 21, 1988
Issued Date -
N/A
app pub date -
Apr 15, 1987
filing date -
Mar 13, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanism is disclosed for rock bits whereby cutting elements, rotatably mounted to fixtures with journals, are constantly forced to rotate or precess by the interaction of the earth formation and the cutter. The cutters are fixed in skewed or offset positions on a cutting face of a rotary drill bit head. These cutting elements act as drag or shear cutters when they are operated in an earth formation.
First Claim
Family
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