Electricity: motive power systems – Automatic and/or with time-delay means – Moisture content or wetness
Patent
1986-10-30
1990-03-13
Ro, Bentsu
Electricity: motive power systems
Automatic and/or with time-delay means
Moisture content or wetness
318266, 318286, 318468, 49 28, E05F 1520, H02P 122
Patent
active
049085549
ABSTRACT:
There is provided a moisture-responsive system for protecting the interior of an enclosure such as a motor vehicle which includes an opening; a closure for the opening; a moisture sensor for providing a moisture signal in response to sensing of moisture in excess of a predetermined threshold; a circuit coupled to the closure and the moisture sensor for providing a signal to actuate the closure in response to receipt of a moisture signal and for sensing obstructions of the closure and temporarily terminating the actuation of the closure in response thereto.
There is also provided an improved moisture sensor comprising conductive plates separated by and supported on an insulating layer with a raised bulbous portion which extends above the plates to predetermine the amount of moisture necessary to electronically bridge the gap between the conductive plates and therefore the level at which the sensor commences to sense moisture.
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