ATLAS COPCO NORTH AMERICA, LLC
ATLAS COPCO NORTH AMERICA, LLC Patent applications | ||
Patent application number | Title | Published |
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20150218895 | SYSTEM AND METHOD FOR AUTOMATED ROD CHANGING - A system for automated drilling rod changing has an upper position sensor capable of sensing the position of the rotary head with respect to the deck, and a lower position sensor also capable of sensing the position of the rotary head with respect to the deck. The position sensors have respective electrical outputs connected to a computer. The computer is programmed to compute the vertical position of the rotary head with respect to the deck at a first position, where a first rod is suspended above a second rod held by the table clamp, and at a second position, where the box end of the first rod is capable of being connected to the pin end of the second rod, based on the computed position of the rotary head; and, the computer is programmed to command the rotary head to move from the first position to the second position. | 08-06-2015 |
20130306378 | ROD SUPPORT SYSTEM - A rod support system has an upper gripper assembly and a lower gripper assembly. Each gripper assembly has a top plate having a first track. The first track has a first substantially arcuate portion having a first radius of curvature and a second substantially arcuate portion having a second and smaller radius of curvature. A jaw is constrained to move in a path defined by the first track. A bottom plate of the assembly has a second track that is congruent with the first track also engaging the jaw, so that the jaw is constrained to move in a path defined by the first track and the second track in cooperation. The jaws can support a rod when the jaws move from a position along the first arcuate portion of the first and second tracks to a position along the second arcuate portion of the first and second tracks. | 11-21-2013 |