Abstract: A cooling or warming apparatus for beverages that relies primarily on conduction heat transfer. The apparatus includes at least one heat conduction unit inside an enclosed case. The heat conduction unit includes a cylindrical sleeve with a center bore configured to receive and transfer heat to and from a 12 fl. oz. aluminum can or 0.5 liter plastic water bottle. Attached to the outside surface of the sleeve is a laterally extending interface block. Both the sleeve and the interface block are made of aluminum and covered with an insulation layer. A Peltier device planar structure with a cool side and a hot side. During assembly the Peltier device is attached with the cold side in direct contact with the exposed end of the interface block. A heatsink is attached to opposite the hot side of the Peltier device, and a fan assembly mounted is over the heatsink. The apparatus includes control switches that control its operation as a cooling or warming apparatus and a 12 VDC electrical power source.

Abstract: A cooling or warming apparatus for beverages that relies primarily on conduction heat transfer. The apparatus includes at least one heat conduction unit inside an enclosed case. The heat conduction unit includes a cylindrical sleeve with a center bore configured to receive and transfer heat to and from a 12 fl. oz. aluminum can or 0.5 liter plastic water bottle. Attached to the outside surface of the sleeve is a laterally extending interface block. Both the sleeve and the interface block are made of aluminum and covered with an insulation layer. A Peltier device planar structure with a cool side and a hot side. During assembly the Peltier device is attached with the cold side in direct contact with the exposed end of the interface block. A heatsink is attached to opposite the hot side of the Peltier device, and a fan assembly mounted is over the heatsink. The apparatus includes control switches that control its operation as a cooling or warming apparatus and a 12 VDC electrical power source.

Abstract: Methods and apparatuses for measuring earth ground resistivity are provided. A main unit can be configured to couple to each of a plurality of electrodes over a respective wire, perform a resistance measurement over the plurality of electrodes, and transmit an induction signal over one or more of the respective wires indicating a representation of a resistance value calculated as part of the resistance measurement. A remote unit can be configured to detect the induction signal over the one or more of the respective wires using an inductance mechanism, process the induction signal to determine the representation of the resistance value, and render the representation of the resistance value on an interface of the remote unit.