Portable hardbander
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 14, 1984
Grant Date -
N/A
app pub date -
Jul 31, 1981
filing date -
Jul 31, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for applying a band of hardened metal around a portion of a drill collar in accordance with conventional MIG or TIG welding processes. The improved hardbanding system comprises an AC power source coupled to a water cooled, MIG or TIG welding torch assembly. A hydraulic pump is provided, coupled to the AC power source, for independently driving: (1) a mandril assembly for rotating the drill collar workpiece adjacent the torch assembly, (2) an elevation assembly for adjusting the height of the torch assembly and the mandril assembly; and (3) a pair of hydraulic jacks for lifting the drill collars off of standard pipe racks. The entire system is designed for mounting on the bed of a conventional two ton truck such that the system is easily transportable for on-site hardbanding.
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