Device for connecting a drill column to a pipe or the like
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 14, 1988
Grant Date -
N/A
app pub date -
Jun 30, 1986
filing date -
Oct 30, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An actuating system for operating pressure-medium actuated coupling members for remotely connecting a drill column to a pipe or pipe casing, where the location of the connection is inaccessible, comprises a directional control valve (48) switchable by an actuator (46) and having at least three connections (51, 52, 53), a coupling (47) operated in one direction by the actuator disposed between the actuator (46) and the adjustable part of the directional valve (48). The coupling members may be a plurality of radially movable bearing members (34) and bars (24) spaced apart in the axial direction of the device.
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