초록 ▼

A water treatment system including a UV bulb, a moisture detector, and a control circuit responsive to the moisture detector to terminate power to the bulb when moisture is detected. The moisture detector includes a nonconductive substrate and a pair of conductors on the substrate. When moisture is

A water treatment system including a UV bulb, a moisture detector, and a control circuit responsive to the moisture detector to terminate power to the bulb when moisture is detected. The moisture detector includes a nonconductive substrate and a pair of conductors on the substrate. When moisture is not present, the detector is nonconductive. However, when moisture accumulates on the detector, the moisture provides a conductive path between the conductors so that the detector becomes conductive. When moisture is detected, the control circuit terminates power to the bulb and/or provides an appropriate indication to the system user.

대표청구항 ▼

The invention claimed is: 1. A water treatment system comprising:a light source chamber;a light source within the chamber, the light source having a resistance;a moisture-detecting device within the chamber, the device electrically connected in parallel with the light source and having a first resis

The invention claimed is: 1. A water treatment system comprising:a light source chamber;a light source within the chamber, the light source having a resistance;a moisture-detecting device within the chamber, the device electrically connected in parallel with the light source and having a first resistance greater than the resistance of the light source when a preselected level of moisture is not present, the device having a second resistance less than the resistance of the light source when the preselected level of moisture is present; anda control circuit operatively connected to the light source and to the moisture-detecting device, wherein the moisture-detecting device provides a relatively low resistance pathway preventing the light source from receiving power when the preselected level of moisture is present.