Boring or penetrating the earth – With below-ground tool drive prime mover – With above-ground means
Patent
1989-12-18
1990-11-20
Dang, Hoang C.
Boring or penetrating the earth
With below-ground tool drive prime mover
With above-ground means
175104, 175107, 175122, 175162, E21B 420
Patent
active
049711628
ABSTRACT:
A continuous feed system for a drill comprising a down-hole drill assembly having a support end and a drilling bit. Rotation is imported to the down-hole drill assembly between the support end and the drilling bit, which results in a torque being applied to the support end. A vertically disposed support chain has two ends, one end of the chain is connected to the support end. The chain resists the torque with limited torsional flexibility. A drive interacts with the chain at a point between the two ends for positively providing axial extension of a length of the chain.
REFERENCES:
patent: 3150723 (1964-09-01), Hale
patent: 3692123 (1972-09-01), Gyongyosi
patent: 3773121 (1973-11-01), Ikeda
patent: 3872932 (1975-03-01), Gosselin
patent: 4105081 (1978-08-01), Perrand
Back Carl F.
Bell J. R.
Dang Hoang C.
Foster G. B.
LandOfFree
Continuous drill feed apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous drill feed apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous drill feed apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-449328