Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-05-19
2000-03-21
Wu, Daniel J.
Communications: electrical
Condition responsive indicating system
Specific condition
340602, 340605, 7333502, G08B 2100
Patent
active
060407751
ABSTRACT:
Roof vents include at least one moisture sensing element which is electrically coupled to an electrical connector in the roof vent. The electrical connector is located in the roof vent in such a manner that it is protected from the environment. A portable moisture sensing circuit or device with a moisture display for indicating a degree of moisture is provided with an electrical connector which mates with the electrical connector in the roof vent. According to the invention, the roof vents are installed in a roof system with the moisture sensors located below the roof insulation. When it is time to inspect the roof for leaks, a worker carries the portable device from one roof vent to another and plugs the device connector into the vent connector to take a moisture reading from the sensing element(s) associated with each vent. Since only one electrical circuit and display is used, the total cost of a system having many roof vents is significantly reduced. Preferred aspects of the invention include: locating the electrical connector on the vent so that it is easily and rapidly accessed but protected from the environment, associating a plurality of moisture sensing elements with a single vent, and arranging the plurality of moisture sensing elements in a star pattern.
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Trieu Van T.
Wu Daniel J.
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