Drilling device

Details Drilling device Drilling device

1977-02-08

1978-07-25

Purser, Ernest R.

Boring or penetrating the earth

With below-ground tool drive prime mover

Plural below-ground drive prime movers

175 99, 175104, 175106, 175352, 175373, E21B 308

Patent

active

041024150

ABSTRACT:
Earth drilling equipment includes a main body tube with jacks to releasably support it within a drilled shaft, or within an erected start up shaft. An outer casing is rotatably mounted within the main body tube, and carries a horizontal base on which are driven wheels, and vertical shafts which have cutting elements. Means within the casing for fluid input and evacuation within the drill area is provided to form a slurry of the fluid and excavated material for withdrawal through the casing. As drilling continues, the main body tube is lowered into the shaft.
The cutting elements include plates with cutting edges mounted on individual axles such that the edges are maintained in cutting relation to the area to be drilled.

REFERENCES:
patent: 223230 (1880-01-01), Jenkins
patent: 2310289 (1943-02-01), Hokanson
patent: 3376942 (1968-04-01), Van Winkle
patent: 3431989 (1969-03-01), Waterman
patent: 3770067 (1973-11-01), Ikeda
patent: 3866678 (1975-02-01), Jeter

Affiliated with

Also associated with

Rating

Drilling device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drilling device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drilling device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1416968