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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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