Abstract: To provide needed stability between a vehicle, such as a pick up truck, and an added removable body component, such as a camper, one or more large inflatable structural components are positioned fully between them at the cab location. For example, wherein a large camper is placed on a pick up truck and the camper has a cab-over portion generally housing a sleeping space, two inflatable structural components are utilized. One structural component is located fully on the cab roof and inflated into mutual contact with the cab-over portion of the camper that is directly opposite the full cab roof; the other structural component is located between the full rear of the cab, minus any window area, and the front wall of the camper, minus any window area, and is inflated into mutual contact with their respective surfaces.

Abstract: A running tool for setting and retrieving well devices in and from wells having a mandrel reciprocable in its axial bore and slips suspended from the mandrel for reciprocation therewith into and out of supporting engagement with a well device, the bore including a counterbore in its lower portion permitting expansion of the slips into releasing position and a reduced lower extremity for contracting said slips into supporting position. A spring, confined in the counterbore around the mandrel, constantly urges said mandrel and slips downwardly and permits relative downward movement of the tool and expansion of the slips upon setting of the well device.