Abstract: A connector for attaching equipment to an underwater cable includes a cylindrical race having a plurality of sections pivotably connected by a hinge. The sections can pivot about the hinge to enable the race to be opened and detached from the cable. The hinge includes a plurality of sockets and a hinge pin received in the sockets. The hinge pin can preferably be retracted from the sockets to unlock the hinge and inserted into the sockets to lock the hinge. A retaining member may be provided to prevent the hinge pin from falling out of the sockets when the hinge pin is retracted.

Abstract: A connector for attaching equipment to an underwater cable includes a cylindrical race having a plurality of sections pivotably connected by a hinge. The sections can pivot about the hinge to enable the race to be opened and detached from the cable. The hinge includes a plurality of sockets and a hinge pin rotatably received in the sockets. The hinge pin can preferably be retracted from the sockets to unlock the hinge and inserted into the sockets to lock the hinge. A retaining member prevents the hinge pin from falling out of the sockets when the hinge pin is retracted.

Abstract: A general-purpose, pressure-sensitive electrical switch, having a frangible electrically conductive path that is irreversibly broken by an excessive applied pressure differential, The switch includes a pressure-deflectable diaphragm and an interior chamber. The diaphragm forms an interface between the internal chamber and the external environment. As the pressure differential across the diaphragm exceeds a specified level, the diaphragm deflects. The internal chamber can also be sealed with an internal pressure P.sub.1 so that the diaphragm deflects for a specified absolute external pressure P.sub.2. The force of the deflection is transmitted to brittle, inelastic structure within the switch through an intermediate load transmission element. The electrical path, which is along the brittle structure, terminates in a pair of externally-accessible terminals.