Boring or penetrating the earth – With magazine for successively moving unconnected – oriented...
Patent
1981-03-23
1984-05-22
Pate, III, William F.
Boring or penetrating the earth
With magazine for successively moving unconnected, oriented...
175 57, 175 85, 173164, 414 22, E21B 1914
Patent
active
044495927
ABSTRACT:
A mobile rock drill unit (10) is disclosed which automatically adds and removes drill string sections (26) from the drill string (24) of the drill unit. The drill unit includes a conventional drill motor (20) and a centralizer (40). A cylindrical storage rack (34) is both rotatably and pivotally mounted to the mast (14) of the drill unit and has upper and lower rack members (62,64) with aligned fingers (116,118,176,178) to define a number of drill string section storage positions to store drill string sections therebetween. A roller clamp assembly (36) is provided which clamps the coupling (28). The coupling is clamped between rotatably mounted driven and idler rollers (296,322) and the axis of rotation of each of the rollers is canted relative to the drill string axis so that rotation of the driven rollers in a first direction will rotate the coupling and move it downwardly at a rate synchronized with the threads interconnecting the coupling and adjacent drill string section. A control system (38) is provided which automates the task of adding and removing drill string sections from the drill string.
REFERENCES:
patent: Re30071 (1979-08-01), Hilding et al.
patent: 2734723 (1956-02-01), Larcen
patent: 2972388 (1961-02-01), Thornburg
patent: 2976943 (1961-03-01), Curtis
patent: 3025918 (1962-03-01), Lever
patent: 3177944 (1965-04-01), Knights
patent: 3286777 (1966-11-01), Gyongyosi
patent: 3441323 (1969-04-01), Vincent et al.
patent: 3493061 (1970-02-01), Gyongyosi
patent: 3506075 (1970-04-01), Attebo
patent: 3552506 (1971-01-01), Mayer
patent: 3664439 (1972-05-01), Council
patent: 3680412 (1972-08-01), Mayer et al.
patent: 3684039 (1972-08-01), Coyne
patent: 3913753 (1975-10-01), Swartz et al.
patent: 3913754 (1975-10-01), Swartz et al.
patent: 3965994 (1976-06-01), Hilding
patent: 3966053 (1976-06-01), Loftis
patent: 3976149 (1976-08-01), Granholm et al.
patent: 3985189 (1976-10-01), Jahnke et al.
patent: 4092881 (1978-06-01), Jurgens et al.
patent: 4096608 (1978-06-01), Lagerstedt
patent: 4676337 (1978-02-01), Childress
Publication of Gardner-Denver Company, "All Hydraulic Drilling Package".
Cooper Industries Inc.
Meier Harold E.
Pate III William F.
LandOfFree
Automatic drill string section changer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic drill string section changer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic drill string section changer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1473686