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US 7,821,411 B1Granted
Safety device for monitoring a conduit
AssigneeDiversitech Corporation
InventorCharles Barry Ward
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AssigneeDiversitech Corporation
InventorCharles Barry Ward
Estimating the term…
A noninvasive security device for detection of blocked fluid flow within a conduit includes clamping body that may be affixed to the conduit and a safety overflow circuit mounted to the clamping body. The safety overflow circuit includes first and second sensor pads that act as the metal plates of a capacitor. The sensor pads are connected to the clamping body and positioned proximate the conduit to measure the capacitance within the conduit. The capacitance will be low when water is freely flowing through the conduit, since the dielectric constant will be similar to that of air. However, when the water level increases in the conduit, the dielectric constant will increase as will the capacitance, such that a pulse signal is generated to notify the user of the occlusion and to further disable the source of the water to the conduit.
A noninvasive security device for detection of blocked fluid flow within a conduit, said security device comprising:
A method for monitoring the level of a fluid in a conduit comprising the steps of:
A noninvasive security device for detection of blocked fluid flow within a drainpipe, said security device connected to a power source and comprising:
Dependencies are inferred from the claim text.