Abstract: A tubing string testing tool having three separate isolated passageways for allowing separate and independent control over the packer or sealing systems as well as for each of two separate testing fluids. The tool is comprised of a plurality of separateable elements that can be connected together to develop the desired length testing tool to correctly position sealing assemblies along the interior of the tubing string to form annular test cavities within the tubing string to isolate joints and tubing wall sections so that a plurality of joints and tubing wall sections can be simultaneously tested. Each of the separate elements include three internal passageway systems and the connection between each employs three separate annular chambers for interconnecting the passageways together between the elements and along the entire length of the tool or along desired portions of that length.

Abstract: A radiator repair bench and attached hoist mechanism includes a test and repair bench with a radiator support gantry having spaced support legs pivotally attached to the top of the bench. A powered gantry support bracket pivots the gantry hoist mechanism into position over the bench or adjacent one side of the bench in order to permit gripping and subsequent movement of a radiator. In this manner, a radiator resting on the floor of a shop may be gripped by a radiator clamping assembly suspended from the gantry, raised by the gantry over the workbench and deposited on the workbench for repair and testing.

Abstract: A radiator hoist and positioner includes an upright post supporting a rotatable swing arm. An extensible hoist line is mounted on the swing arm. A swivel connects a yoke structure to the hoist line. Rotatably mounted on the yoke structure are two clamp mechanisms; the clamp mechanisms are aligned for rotation. A pair of opposed pad members included in each clamp mechanism are advanced and retracted by an activator mechanism to clamp and unclamp a radiator. A clamped radiator is positioned as desired by rotating the clamp mechanisms, the yoke structure and the swing arm, and by extending or retracting the hoist line.