Abstract: A hard banding apparatus for pipes and other drilling tools. The hard banding apparatus has a floating weld box that moves in response to the shape of the item to be welded. The apparatus can include a drive roller assembly and lift mechanisms that lift and move the weld box or housing to a desired height.

Abstract: A underwater cutting torch having a control valve assembly, a check valve assembly and a torch head all positioned within a housing. The control valve assembly and check valve assembly include a passageway for gasses to flow that includes a coupler formed of PTFE material to inhibit combustion within the handle of the underwater cutting torch.

Abstract: A hard banding apparatus for pipes and other drilling tools. The hard banding apparatus has a floating weld box that moves in response to the shape of the item to be welded. The apparatus can include a drive roller assembly and lift mechanisms that lift and move the weld box or housing to a desired height.

Abstract: A mechanism is provided as part of a test clip for locking the clip to the body of an integrated circuit device, at the corner regions of the IC body. The mechanism includes locking fingers (62, FIG. 4 ) that are formed of metal spring wire, with each finger having an upper part (84) fixed to a base (22) that closely engages an upper portion of the IC body, a middle part (84) that extends at a downward-axially outward incline, and a lower finger end (66) that engages a lower portion of the IC body. When a shaft (72) is pushed down against the biasing of a spring (74), the shaft moves down an actuator (64) that has prongs (80) which press against the middle parts of the locking fingers to deflect them radially inwardly, so the finger lower ends slide radially inwardly along grooves (112) formed in the base, to engage the lower portion of the IC body.