Abstract: A combination tire inflator and pressure gauge, having a valving member and a body member having ports and passages with which the valving member co-operates to provide flow or non-flow and selective communication of the pressure source, the gauge, and the tire, depending upon the relative location or setting of the valving member with respect to the body member. In three relative positions of the valving member, respectively, it (1) interconnects the gauge and tire passages, the pressure-source passage being blocked, thus showing tire pressure; (2) vents the tire and gauge passages, the pressure-source passage likewise being blocked, thus venting air from the tire; and (3) causes or permits communication of the pressure-source and the tire passage, the gauge passage being blocked, thus inflating the tire.

Abstract: A combination gauge for indicating a measured condition, such as battery condition or coolant system temperature, which provides both a visual light means and a numerical or other calibrated indicator gauge, providing when a special pre-set condition occurs, the user is informed not only by the calibrated gauge but also by energization of the visual light means which illuminates the visible face of the gauge itself. The gauge is particularly useful for vehicle use, or other uses in which the user's attention is not likely to be on the gauge with any high degree of continuity, and yet the condition being sensed or monitored is such that it has rather critical limits.