A rechargeable battery socket and the manufacturing method of making the same is disclosed. It is characterized in that it also includes an intermediate tube between the mother preform and said outer tube, the intermediate tube possessing viscosity at fiber-drawing temperature which is less than the viscosity at fiber-drawing temperature of said mother preform and of said outer tube. One embodiment includes a method of making a metal carbide ceramic fiber using VSSP to produce high yield boron carbide fiber. The amount of phase shift of the phase shifter is controlled by the output signal of the differential amplifier. The inhaler may be able to remain coupled to the retaining device andor inhaler container, and the retaining device andor inhaler container may be able to remain coupled to the spacer during transition from the stored position to the active position. The masking condition may be, for example, a boot or re-boot of a processing set, or a forced re-configuration or initialization of the processing system instigated by an operating system.