Boring or penetrating the earth – With means to feed drive
Patent
1991-02-15
1993-05-25
Dang, Hoang C.
Boring or penetrating the earth
With means to feed drive
173 28, 173185, 173192, 173193, 175162, 175215, 175320, E21B 702, E21B 1718, E21B 1910
Patent
active
052131696
ABSTRACT:
The drilling system of this invention provides a drill mast mounted on a turntable. The turntable may be mounted on any type of undercarriage or carrier. The drill mast can be positioned around the perimeter of the turntable, it can be positioned near to, or away from, the turntable. The drill mast is carried on a trunnion mounting and can be oriented along Y and Z axis' with respect to the turntable X axis for drilling angle holes. A pipe joint breaker assembly is provided adjacent the lower end of the drilling mast. This assembly can accommodate different size pipe diameters. The drilling systems of this invention is specially adapted to reverse-circulation sample drilling employing a down-the-hole hammer drill. The drilling head configuration provides for simultaneous feeding into a multi-walled drill string of drilling mud, compressed air into the drill string to operate the hammer drill and to feed the hammer drill bit head, and withdrawing of sample-containing return air. The system includes a triple-walled, reverse-circulation drill rod especially adapted for down-the-hole hammer drilling that eliminates the need for a separate drive casing string.
REFERENCES:
patent: 2903949 (1959-09-01), Simmonds et al.
patent: 3576218 (1971-04-01), Lisenby
patent: 4067596 (1978-01-01), Kellner et al.
patent: 4100981 (1978-07-01), Chaffin
patent: 4385668 (1983-05-01), Becker et al.
patent: 4475604 (1984-10-01), Albertson et al.
patent: 4703811 (1987-11-01), Lam
patent: 4711310 (1987-12-01), Luen
patent: 4715456 (1987-12-01), Poe, Jr. et al.
patent: 4819746 (1989-04-01), Brown et al.
LandOfFree
Exploration-sampling drilling system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exploration-sampling drilling system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exploration-sampling drilling system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-891953