Make-Up/Break-Out Device For Drilling Hammers
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United States of America Patent
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Issued Date -
May 15, 2014
app pub date -
Nov 11, 2013
filing date -
Nov 12, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A make-up/break-out device for use with a hammer used in horizontal directional drilling operations. The hammer comprises a drill bit assembly and a housing that are connected via low helix angle threads. The make-up/break-out device is used with the hammer to tighten or loosen the connection between the drill bit assembly and the housing. The make-up/break-out device comprises a vise arm, a lever arm, and drive arm. The drive arm reacts torque on both the vise arm and the lever arm which in turn react torque on the drill bit assembly and the housing
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