Abstract: A toothbrush comprising a handle unit and a detachable brush. The handle contains a manually controlled, spring latching mechanism for retaining and ejecting the brush. The handle also contains a detachable storage section for capsules or other forms of toothpaste, toothpowder, etc.

Abstract: A temperature-actuated circuit for controlling the application of an electronic circuit. In a typical application, the control circuit shunts a circuit which effects enrichment of the fuel mixture for the cold-starting of internal combustion engines. In a preferred embodiment, the control circuit comprises a temperature-dependent resistance, such as a thermistor, which supplies changing voltage with increasing engine temperature to the gate of an SCR. After an interval necessary to attain a predetermined engine temperature, the altered gate voltage triggers the SCR, thereby actuating a relay associated with the enrichment circuit for shunting the enrichment circuit from the fuel injection circuit. Typically, the enrichment circuit alters the width of square wave signals which control fuel delivery, so that bypassing the circuit eliminates the altered wave characteristics and provides leaner, more economical operation.