Abstract: A downhole tool system includes a tool housing, a chassis located within the tool housing, and an electronics assembly positioned on the chassis within the tool housing. The electronics assembly includes a heat sink comprising an inner surface and an outer surface. The outer surface includes a tapered portion and in is contact with the tool housing. The electronics assembly further includes one or more electronic components mounted onto the heat sink, in which at least a portion of the electronic components is in contact with the inner surface of the heat sink.

Abstract: A method and apparatus including a fluid pressure actuator that includes a diaphragm that has a top and a bottom surface. In an exemplary embodiment, the fluid pressure actuator also has plunger coupled to the diaphragm and that extends from the bottom surface of the diaphragm in a first direction. The fluid pressure actuator also includes a bellow sensor that is coupled to the bottom surface of the diaphragm and that has an interior surface. In an exemplary embodiment, a height of the interior surface of the bellow sensor prevents the movement of the plunger in the first direction.

Abstract: A perforating gun includes a plurality of charge containers and an elongate carrier strip. Each charge container may be mounted within a hole in the carrier strip or in a hole in a mounting bracket secured to the carrier strip through substantially continuous contact between an outer surface of the charge carrier and an inner surface of the mounting hole. One or more relief holes are positioned longitudinally adjacent to each mounting hole, with a longitudinal spacing between a perimeter of the relief hole and a perimeter of the mounting hole being less than the width between a respective hole and the edge of the carrier strip or mounting bracket.