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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Law; Arnold R.
Address:
Garland, TX
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
7461712 Track-mounted drilling machine with active suspension system December 9, 2008
A drilling machine includes a frame, a tower that is supported by the frame, two tracks for movement over the ground, at least three yokes that interconnect the frame and the two tracks, at least three hydraulic cylinders, an inclinometer that senses the inclination of the frame and
7438143 Track-mounted drilling machine with active suspension system October 21, 2008
A drilling machine includes a frame, a tower that is supported by the frame, two tracks for movement over the ground, at least four yokes that interconnect the frame and the two tracks, a plurality of hydraulic cylinders, a plurality of sensors, and a controller. The tower includes a
7413036 Sub drilling sub August 19, 2008
A telescoping sub (50) for mining operations and the like. The telescoping sub (50) includes a rotor (94) portion coupleadle to the rotary head of a drilling rig, and a stator (74) portion that is coupleable to a drill rod. The rotor (94) portion is slideadly coupled to the stator (74)
7325634 Track-mounted drilling machine with active suspension system February 5, 2008
A drilling machine includes a frame, two tracks, and a plurality of yokes interconnecting the frame and the tracks. Each yoke is pivotable with respect to the frame by the extension and retraction of a hydraulic cylinder. Each of a plurality of sensors senses a parameter indicative of










 
 
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