Drilling rig

Details Drilling rig Drilling rig

1981-05-04

1985-06-11

Leppink, James A.

Boring or penetrating the earth

With above-ground means to impact an earth-penetrating means

175171, 173132, 173134, E21B 302, E21B 720

Patent

active

045222738

ABSTRACT:
An improved drilling rig is the subject of this application. The rig includes a drilling tower (10) having a ram (16) for applying down pressure to a length of drill rod (12). A lever member (42) is suspended from the ram (16) and permitted to float toward and away from the ram (16) by being mounted for movement along tracks provided by a plurality of eyes (50) elongated in directions toward and away from the ram (16). Suspension bolts (52) extending through the eyes (50) at one end (72) of the lever member (42) are allowed to ride upwardly to the upper extremity of the eyes (50) to form a point about which the lever member (42) pivots. A percussion assembly (26) includes a piston (34) which percussively engages the lever (42) at its opposite end (70). The percussion assembly (26) is laterally off-set from the axis of the drill rod (12). The percussive force imparted to the lever member (42) is translated to the upper end (30) of casing (28) encircling the drill rod (12).

REFERENCES:
patent: 3645343 (1972-02-01), Mays
patent: 3833072 (1974-09-01), Back
patent: 3845828 (1974-11-01), Taylor et al.
patent: 3869003 (1975-03-01), Yamada et al.
patent: 4135585 (1979-01-01), Wagner
patent: 4232752 (1980-11-01), Hauk et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1178403