Tool driving or impacting – Work cleansing – Cleansing fluid passage through hammer head
Patent
1978-01-10
1980-06-24
Pate, III, William F.
Tool driving or impacting
Work cleansing
Cleansing fluid passage through hammer head
173 78, 173 80, 173110, 173131, 175 99, E21B 106
Patent
active
042090709
ABSTRACT:
The drill has a housing receiving therein a reciprocating striker, effecting percussive action upon the tool for breaking the rock at the face of the hole, mounted at the forward part of the housing, and upon the housing itself for propelling the drill in the hole. The housing also receives therein a mechanism for rotating the tool, including a self-controlled coupling provided with a movable sleeve and a stationary sleeve and adapted to transmit a torque to the tool in only one direction of rotation. The drill is provided with a device preventing a rearward motion of the housing and its rotation during a drilling operation. The drill is characterized by having a return device for retracting the tool from the face after it has been struck by the striker. The return device includes a piston mounted on the tail portion of the tool and mounted intermediate the striker and the forward bottom of the housing, a piston space defined between the piston and the forward bottom of the housing and a resilient member accommodated in this space and cooperating with the piston.
REFERENCES:
patent: 913928 (1909-03-01), Traylor
patent: 1654833 (1928-01-01), Rice, Jr.
patent: 2887989 (1959-05-01), Dulaney
patent: 3978931 (1976-09-01), Sudnishnikov
Kamensky Veniamin V.
Nazarov Boris V.
Sudnishnikov Boris V.
Tupitsyn Sergei K.
Varnello Eduard P.
LandOfFree
Air-operated self-propelling rotary-percussive downhole drill does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air-operated self-propelling rotary-percussive downhole drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-operated self-propelling rotary-percussive downhole drill will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1477799