Abstract: An operating mechanism (50,182) for providing mechanical advantage for mating and unmating a fixture (10) to a receiver (150) manually at a separable interface for mating complementary arrays of electrical connectors (12,152) for use in testing equipment. The leading end (80,88) of the operating mechanism (50) of the fixture is inserted into a receptacle (182) of the receiver and locks to secure the fixture to the receiver, simultaneously unlocking a subassembly (58) within the operating mechanism to be manually rotated to fully mate the now-adjacent arrays of connectors. The subassembly (58) is movably secured within an outer barrel (54) affixed to a frame (20) of the fixture and includes an axially spring biased central shaft (70) movable within an inner barrel (72).

Abstract: An air bag system designed for mounting on a steering wheel or other member of a motor vehicle passenger compartment includes an air bag assembly, an open housing for the same and a cover. The air bag assembly while separated from its housing is disarmed to prevent accidental deployment. The air bag is armed during its installation in the housing. The housing and assembly are constructed so that the cover cannot be installed if the air bag assembly is missing or it has been installed improperly so that it is not armed. When the air bag assembly is removed from the housing, it is automatically disarmed.