Abstract: The improved fuse assembly includes a trigger assembly having an electrically nonconductive barrel for receiving a spring loaded trigger therein and a heater strip disposed along the outer circumferential surface of the barrel with a pair of end flaps. One end flap has a hole therethrough which fits over the end of the trigger adjacent the short circuit element. A second flap fits over the end of the barrel adjacent the end ferrule. The short circuit element, which is electrically and mechanically linked to a ferrule on the opposite end of the tube from the trigger assembly, engages the trigger and heater element in a solder fusing alloy.

Abstract: This invention relates to a rotary impulse screwing device which generates only one pulse per rotation of the output shaft. Two main and two additional lamellas are adjustably positioned in the output shaft. The two main lamellas seal at a minimum of two times per rotation of the output shaft. The two additional lamellas are adjusted independently via separate recess tracks to ensure that each additional lamella seals at only one point per rotation of the output shaft. The independently articulated additional lamellas further ensure that the load on the output shaft bearing is symmetrical on non-impulse points of rotation.

Abstract: A break-away flowline fitting for protecting a subsea Christmas tree to which the flowlines are connected when the flowlines are subjected to an externally applied axial load and/or bending moment. The fitting comprises a tubular member having a reduced wall thickness section integrally formed in the member and designed to part or separate axially at an externally applied load less than what would be necessary to harm the tree. A clamp closely surrounds the reduced wall thickness section and limits the pressure induced hoop membrane stress in the reduced wall thickness section to about the same value as in the adjacent normally configured fitting portions, thereby maintaining the pressure integrity of the fitting. A frame having supports disposed on the normally configured fitting portions and axially beyond each end of the reduced wall thickness section has removable reinforcing members which span the reduced wall thickness section prior to placing the fitting in service.

Abstract: An electrical equipment enclosure (10) with an improved hinge pivot (12). Enclosure (10) has a box (20) having emboss (22) and hood (40) having embossment (44). The embosses forming a hinge pivot for slot (34).