Safety device for monitoring a conduit
First Claim
1. A noninvasive security device for detection of blocked fluid flow within a conduit, said security device comprising:
- a clamping body to affix substantially around the conduit; and
a safety overflow circuit affixed to said clamping body, said safety overflow circuit including a first sensor and a second sensor, wherein said first sensor and said second sensor are positioned proximate the conduit to measure the capacitance within the conduit.
15 Assignments
0 Petitions
Accused Products
Abstract
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.
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Citations
20 Claims
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1. A noninvasive security device for detection of blocked fluid flow within a conduit, said security device comprising:
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a clamping body to affix substantially around the conduit; and a safety overflow circuit affixed to said clamping body, said safety overflow circuit including a first sensor and a second sensor, wherein said first sensor and said second sensor are positioned proximate the conduit to measure the capacitance within the conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for monitoring the level of a fluid in a conduit comprising the steps of:
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a) providing a clamping body supporting a pair of sensors connected to a safety overflow circuit; b) affixing said clamping body to the conduit with said sensors proximate the conduit; c) monitoring a capacitance within the conduit using said sensors; d) determining if said capacitance exceeds a predetermined value corresponding to an excessive level of fluid in the conduit with said safety overflow circuit; and e) notifying the user of the excessive level of fluid in the conduit. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A noninvasive security device for detection of blocked fluid flow within a drainpipe, said security device connected to a power source and comprising:
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a clamping body to engage the drainpipe; noninvasive sensor means for measuring a capacitance within the conduit, said sensor means positioned proximate the conduit; and a safety overflow circuit connected to said sensor means to measure the capacitance within the conduit, said safety overflow circuit including means for notifying a user of blocked fluid flow within the drainpipe. - View Dependent Claims (17, 18, 19, 20)
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Specification