Abstract: A modular sensor assembly for performing measurement or calibration is disclosed, comprising a sensing module comprising a threaded spigot, a first slip ring conductive track, and a second slip ring conductive track; a base module comprising a threaded receptacle, a first conductor, and a second conductor; wherein the sensing module is detachably mounted to the base module by rotating the threaded spigot into the threaded receptacle thereby forming a first electrical connection between the first slip ring conductive track and the first conductor, and a second electrical connection between the second slip ring conductive track and the second conductor.

Abstract: A modular sensor assembly for performing measurement or calibration is disclosed, comprising a sensing module comprising a threaded spigot, a first slip ring conductive track, and a second slip ring conductive track; a base module comprising a threaded receptacle, a first conductor, and a second conductor; wherein the sensing module is detachably mounted to the base module by rotating the threaded spigot into the threaded receptacle thereby forming a first electrical connection between the first slip ring conductive track and the first conductor, and a second electrical connection between the second slip ring conductive track and the second conductor.

Abstract: This invention provides improved methods of protection required under the 1999 edition of the National Electric Code, section NEC 830 requirement that if a drop coaxial cable (usually supplying an individual residence) carries power above a certain voltage, it must include sufficient protection from electric shock for people who may come in contact with it. A drop coaxial cable would be carrying sufficient power for NEC 830 protection if it were supplying a cable telephone interface box or other AC powered network interface devices. In one embodiment, the invention utilizes the AC power signal from the drop cable to operate an AC power sensing circuit. The circuit utilizes an upper and lower current range to determine whether to activate a switch operative to interrupt the AC power in the drop cable. One variation of the invention utilizes an oscillator generated probe signal to determine if there is a valid circuit connection.

Abstract: A holder for canned or bottled beverages which thermally insulates the beverage and provides a message display in lamps visible on the outer surface of the holder at the election of the user of the holder.