Abstract: The present invention relates to a method and dressing for detecting detachment of the dressing, which is applied to a surface of an at least partly electrically conductive object. The dressing comprises an adhesive for attaching the dressing to the electrically conductive object and at least two electrodes arranged in a distance from the electrically conductive object. A voltage is applied to the first and second electrode establishing an electrical circuit comprising a first capacitor between the first electrode and the electrically conductive object and a second capacitor between the second electrode and the electrically conductive object. Changes of the capacitance between at least one of the first and the second electrode and the electrically conductive object are detected, and an alarm is activated when the changes of the capacitance reach a predetermined value. This advantageously provides a method whereby a leak can be detected quickly.

Abstract: A method and apparatus for the remote detection of non-conductive pipes is described. The system consists of transmitter (Tx) and receiver (Rx) units. The transmitter unit induces mechanical vibrations into the pipe, and generates a reference signal which is relayed to the receiver. The receiver unit senses vibrations from the ground and converts the vibrations into an electrical signal, and receives the reference signal from the transmitter. Using synchronous detection, the receiver compares the reference signal to the received signal from the ground. The output of the receiver is proportional to the strength of the signal from the ground and therefore indicates the proximity of the receiver to the underground pipe.

Abstract: A real time method and dynamic logic-based system for enhancing the operation of a pipeline network is disclosed. The system and method perform monitoring of the operation of a pipeline network, generate alarms in response to differing levels of destabilized pipeline operations, manage the generation of alarms based upon known operating events and operating conditions, diagnose potential source of the detected destabilized events and manage the operation of the pipeline.

Abstract: A sealing system for sealing between two members includes a polymer seal disposed between the two members, a measurement device, and an evaluation unit. The measurement device is at least partially disposed within the polymer seal, is configured for measuring an aspect of the polymer seal indicating sealing performance of the polymer seal, and is configured for creating a signal corresponding to a measured aspect of the polymer seal. The evaluation unit is configured for evaluating the signal corresponding to the measured aspect of the polymer seal and for determining a sealing performance capability of said polymer seal.

Abstract: Analyzing the pressure profile generated during a limited period of time immediately prior to the end of a liquid aspiration process and comparing the standard deviation of the residuals to a critical value to determine if the liquid was of a desired sufficient volume.

Abstract: A system determines the carbon footprint of a compressed gas leak. The system comprises an ultrasonic detector to detect a compressed gas leak, a storage device storing information on the type of gas, the compressor efficiency, and the carbon emissions necessary to generate electricity to drive the compressor. A processing unit includes software that determines an amount of electrical energy needed to recharge the lost compressed gas based on the compressor efficiency and calculates the carbon emissions created by the amount of electrical energy. A method monitoring for gas leaks comprises detecting ultrasonic emissions, generating an electrical signal representative of the compressed gas leak, and calculating an amount of electrical energy needed to recharge the lost compressed gas. The method further includes calculating the carbon footprint based on the carbon emissions necessary for the electrical power generation system that drives the compressor.

Abstract: A leak detection system is described for detecting a leak through a closed valve disposed between an upstream pipe and a downstream pipe of an industrial process. An insertable plate is coupled to the valve in the pipe in-line with the fluid flow. A sensor couples to the flow and provides a signature output. A leak detector is coupled to the sensor and adapted to detect a leak through the valve based upon the signature output.

Abstract: Liquid leak detection systems, and fuel cell systems and hydrogen-producing fuel processing systems containing the same. The liquid leak detection systems are adapted to detect liquid leaks from the fuel cell and/or fuel processing systems and to respond thereto, such as by interrupting the delivery of liquid reactants, by generating an alert, by transitioning the fuel processing system to a different operating state, and/or by shutting down the fuel processing and/or fuel cell system. The liquid leak detection systems may include a controller and at least one liquid detector, and in some embodiments may include a cover. In some embodiments, the liquid detector includes a signal emitter and a signal detector. In some embodiments, the liquid detector includes at least a pair of spaced-apart conductive members that nominally define an open circuit. In some embodiments, the cover is adapted to repel water and/or includes conductive particulate.

Abstract: The present invention relates to a method for verifying a leak situation in a liquid transfer system where liquid is transferred with a frequency-converter-controlled pump from a lower pressure to a higher pressure and where liquid is prevented from being transferred from a higher pressure to a lower pressure with one or more check valves positioned in a pipe system. The method is characterized by comprising the steps of comprising the steps of generating for the frequency converter motion information on the motion of the pump between the motion operations, and indicating a leak situation of the check valve if the direction of operation of the pump is, in the motion information, opposite to the direction of operation during the use of the pump. Further, the invention relates to a system and a control unit of a frequency converter for implementing the method.

Abstract: A water leakage monitoring and response system for residential and commercial use. A flexible, elongated moisture sensor strip for placement on a floor or adjacent a baseboard or plumbing fixture comprises flexible upper and lower wires separated by a water permeable, nonconductive layer, and nonconductive upper and lower layers that extend away from the wires to form margins for attaching the strip to a surface and for wicking moisture toward the wires. Alternatively, the wires are laterally spaced-apart within the strip and/or the strip assumes the form of a pad to cover a surface area. In use, a plurality of strips/pads are wired to input jacks of a battery-powered electronic interface unit that provides audible and visual signals when moisture shorts the wires in the strips/pads. The unit also provides audible warning of low-battery power and can signal a home security system when a leak is detected.

Abstract: The present invention relates to a wetness detector system that rapidly detects the presence of wetness due to a liquid leak in a system. The wetness detector system contains a reusable wetness sensor that is able to accurately detect the presence of wetness and, in the case of an extracorporeal blood treatment, the presence of blood. The wetness detector system can quickly alert both a user and medical personnel that a liquid leak has been detected in a treatment system and, if necessary, halt the removal of liquids and/or blood from the patient. If a liquid leak is not detected for a period of time, the wetness sensor can enter a low power state, extending the life of the device. The wetness detector system can monitor a number of wetness sensors simultaneously, which would, for example, eliminate the need for medical personnel to continuously inspect numerous patients visually for potentially fatal blood leaks due to needle dislodgement during an extracorporeal blood treatment.

Abstract: Tracking vibrations on a pipeline network includes installing multiple vibration recorders on the pipeline network, with each recorder including a sensor, a timer, a processor, and a digital communication device. At each vibration recorder, vibration signals are received from the sensor at programmed times under the control of the processor of the vibration recorders and processed by the processor. The processed vibration signals are communicated from the vibration recorder to a reader device using the digital communication device. Thereafter, the processed vibration signals from the one or more reader devices are collected at a central computer system. Finally, the collected processed vibrations signals are analyzed at the central computer system to determine abnormal vibration patterns and to obtain measures of any leaks present in the pipeline network.

Abstract: In one embodiment a water leak detector and alarm unit senses sounds in the vicinity of a plumbing fixture, such as a toilet or sink. The characteristics of these sounds are used to determine the presence of a water leak and discriminate between a leak and normal water usage sounds. The unit comprises a microphone (105), electronic circuitry (110), a loudspeaker (115), an optional lamp (140), and an optional battery (120) or power supply (150). Signals from sound sensed by the microphone are amplified by an amplifier (400), and filtered by a filter (405) before being passed through a detector (410), an integrator (415), and a level discriminator (420). The discriminator quantifies and separates sounds into three categories: background, leak, and normal water usage levels. A particular signal is ascribed to each category. These signals are fed to a logic unit (425) for analysis and possible activation of an alarm (115).

Abstract: A low cost, robust, wireless sensor system that provides an extended period of operability without maintenance is described. The system includes one or more intelligent sensor units and a base unit that can communicate with a large number of sensors. When one or more of the sensors detects an anomalous condition (e.g., smoke, fire, water, etc.) the sensor communicates with the base unit and provides data regarding the anomalous condition. The base unit can contact a supervisor or other responsible person by a plurality of techniques, such as, telephone, pager, cellular telephone, Internet, etc. In one embodiment, one or more wireless repeaters are used between the sensors and the base unit to extend the range of the system and to allow the base unit to communicate with a larger number of sensors.

Abstract: The sniffing leak detector comprises a sniffing probe, a suction device and gas detector. An operator-activated switch initiates the beginning of a measuring operation. The switch starts a time measurement, wherein an alarm signal is generated by a signal transmitter at the end of a predetermined measuring period. The sniffing leak detector allows for an operator guidance from measuring point (MP) to measuring point, wherein the measuring period is predetermined and an adherence to the measuring period is monitored.

Abstract: A stand for a medical fluid treatment, a system for supporting medical fluid bags, and a method for testing and sensing whether a bag or a seal in a chamber of a multi-chamber bag has been broken prior to providing therapy. A stand stores one or more medical fluid bags, each bag stored on a single shelf. Each shelf has a sensor for sensing the presence or absence of fluid in the bag, and reporting the status of the bag to a central location, such as a computer. The sensor can also detect and report on whether fluid has leaked from the bag, or in the case of bags with two or more chambers, if a leak in a frangible seal separating the chambers has developed.

Abstract: An underground storage system includes a primary containment unit and a secondary containment unit arranged to sealingly encompass the primary containment unit. The underground storage system further includes a leak detection system which is fluidly connected to the secondary containment system, and which is adapted to detect fluid leaks in the primary containment system and the secondary containment system.

Abstract: A water leak detection and active surveillance system applied to single or multiple dwellings that timely alerts and contacts a decision maker of the leak so that that a corrective intervention may be implemented. The system includes multiple water detection endpoints and a base station that is connected by wireless telephone or other communication means. The system implements a water shutoff action to the water source of the affected dwelling.

Abstract: A water leak detection and active surveillance system applied to one or more single or multiple-story buildings that timely alerts and contacts a decision maker(s) of the leak so that that corrective intervention may be implemented. The system includes multiple water detection endpoints and a base station that is connected by wireless transmission or other communication means. The system also includes a central server which augments the alarms with text messaging and emails as well as maintains a customer database of all water incidents and alarming procedures. The system also monitors the functionality (operating health) of all detection components. The system also provides proprietary access to the database by qualified users through an internet portal. The system includes the capability to implement a water shutoff action to the water source of the affected building. The system can also operate in mixed mode detection where it can detect a combination of alarm conditions such as smoke, motion, etc.

Abstract: Disclosed are portable, easy-to-install apparatuses for detecting and containing fluid leaked or otherwise discharged from a fluid-filled device and for facilitating testing and maintenance of the apparatus and fluid-filled devices. In one aspect of the disclosed invention, upon sensing a fluid discharge, the apparatus activates audible and/or visual alarms and directs the discharged fluid to a predetermined drainage area to prevent damage to areas surrounding the fluid-filled device. In another aspect of the present invention, no plumbing or electrical wiring is required to install the apparatus, thereby allowing an unskilled individual to easily and inexpensively install the apparatus. In yet another aspect of the present invention, the apparatus may be easily located since it is not dependent on gravity or a drainage pipe for discharge of the fluid. Furthermore, the apparatus optionally includes an integral leveling mechanism to accommodate leveling of the apparatus when placed on uneven surfaces.

Abstract: Device for dissipation of gases created in the event of a quench of a superconducting magnet has a quench tube and a front sealing element closing the quench tube on the magnet side. The quench tube is sealed by a rear sealing element, and at least one sensor is associated with the tube segment closed by the sealing elements. The measurement values of the sensor represent a measure for the impermeability of the tube segment. The sensor communicates with an alarm emitter via which an alarm signal can be output upon detection of a leakage of the tube segment.

Abstract: A system for detecting water leaks is described. In one embodiment, the system includes a plurality of sensors, selected from a moisture sensor, a water level sensor, and/or a water temperature sensor. A processor collects moisture readings from the sensors. In one embodiment, the processor reports a possible water leak when a moisture sensor detects moisture above a moisture threshold value. In one embodiment, the processor reports a water leak when the water level reading exceeds a water threshold value and/or when the temperature reading exceeds a temperature threshold value.

Abstract: A fueling environment is equipped with leak detection probes and liquid level probes. Each of the probes is associated with a wireless transceiver. The wireless transceivers send probe data to a site communicator wireless transceiver. To ensure that the site communicator receives the probe data, repeaters are used within the fueling environment. The repeaters receive the probe data, and some period of time after the sensor transceivers stop transmitting, the repeaters retransmit the probe data to the site communicator. The site communicator discards duplicative information and processes the probe data as needed.

Abstract: A leak in a membrane on top of a horizontal roof deck is located by a manually operable carriage which is swept over the upper surface of the membrane on the roof deck. A measuring and switching circuit generates a voltage having a positive attached to the roof deck and a negative attached to conductive brushes on the carriage. The brushes are arranged to form an outer peripheral contact with an inner contact inside the outer contact. Thus the presence of a leak is detected by the outer set of conductive brushes at distance from the leak and by the inner conductive brush when directly over the leakage site.

Abstract: A fluid leak detection system includes a sensor, a control module and a valve module. The sensor is adapted to be placed near a fluid source, such as a water supply line of an appliance. The valve module advantageously includes a motorized ball valve or a magnetic latch configured to arrest fluid flow through a supply line. The control module actuates the valve module and an audible alarm when the sensor detects a fluid leak. The valve module closes a valve positioned along the water line to restrict flow through the water line until the control unit has been manually reset or until the leaked fluid has been removed. The control module also features user inputs to allow the valve to be manually cycled for cleaning, for instance.

Abstract: There is provided a system for detecting a leak in a piping system, including a monitoring unit disposed at a gateway of the piping system for indicating fluid flow, a gauging unit for gauging the duration of continuous fluid flow, and an indication unit for determining the existence of a leak based on the duration. A method for detecting a leak in a piping system is also provided.

Abstract: A rotating control drilling device includes an upper sealing element and a lower sealing element positioned around a drillstring and forming a chamber therebetween and a leak detection device. The leak detection device includes a piston in communication with the chamber, a magnet disc disposed on an end of the piston, and a plurality of magnetic sensors arranged in a magnetic sensing ring around the rotating control drilling device. Upon reaching a selected critical pressure in the chamber, a spring is configured to compress as the magnet disc is positioned proximate to the plurality of magnetic sensors. Furthermore, a method to detect leaks in a rotating control device includes positioning a leak detection device in communication with a chamber located between upper and lower sealing elements and signaling with the leak detection device when a pressure of the chamber exceeds a selected critical pressure.

Abstract: A method for controlling operation of a heat exchanger system comprises providing a heat exchanger system mountable to a rear door of a rack mounted computer system, circulating a heat transport medium through the heat exchanger system, detecting leaks in the heat exchanger system by comparing a first flow rate in an inflow line to a second flow rate in a return flow line, emitting a leakage alert and ceasing further circulation of the heat transport medium through the heat exchanger system when the first flow rate exceeds the second flow rate by a predetermined flow amount, optimizing operation of the rack mounted computer system by monitoring an interior temperature of the rack mounted computer system in a plurality of vertical zones, and optimizing operation of the heat exchanger system by comparing a second temperature measured by a second temperature sensor in the return flow line with a predetermined maximum return flow temperature value.

Abstract: A sensor for detecting the presence of a liquid. The sensor includes a housing having a concave upper surface, a concave lower surface, and a peripheral wall connecting the upper surface and the lower surface, the wall extending above the upper surface and below the lower surface. A plurality of apertures are formed in the wall. A plurality of electrically conductive members extend above the upper surface and below the lower surface and are separated from one another by a gap in which a liquid can accumulate. The electrically conductive members are configured to generate an output signal when a conductive liquid comes into contact with the electrically conductive members and bridges the gap. An output connector is coupled to the plurality of electrically conductive members and is configured to carry the output signal.

Abstract: The present invention relates to detection and alarm systems for predicting and detecting the location of spills, leaks, emissions, and/or pollution sources, i.e., unwanted fluid (liquid/gas) flow/escape, at refineries, e.g., oil and gas refineries, and plants, e.g., petrochemical, chemical, pharmaceutical, and food processing plants, and avoiding said unwanted flow/escape. According to one embodiment, said system comprises at least one detector, at least one battery powered radio frequency transmitter, preferably, according to one embodiment, a 900 megahertz spread spectrum transmitter, and a central processing location which, according to one embodiment, is preferably capable of handling up to 3000 points in a single cell site.

Abstract: An oil leakage detector for detecting the leakage of e.g. diesel or fuel oil in an engine room of a vessel comprises a conduit for an airflow therethrough, and a screen in the conduit. The screen is meshed to prevent oil particles or droplets from passing therethrough. A sensor determines a pressure loss across the screen, and a control system operatively connected to the sensor is configured to output an oil leakage warning signal if the pressure loss exceeds a predetermined threshold value. A fan may be provided for generating the airflow through the conduit. A gas sensor for determining the presence of hydrocarbon, carbon monoxide or carbon dioxide is optionally provided.

Abstract: A fluid leak detection system includes a reservoir, a predetermined quantity of a disinfecting liquid contained within such a reservoir, and at least a pair of elongated conduits. A mechanism for automatically opening the distal end of the at least one conduit includes a leaking fluid absorbent member disposed along the distal end of each of the conduits. The fluid-dissolvable member is dissolved by the leaking fluid and absorbed by the member to permit the conduit to be unfolded and allow the disinfecting liquid to flow outwardly from the distal end of the at least one conduit. The system further includes a support frame attached to a support surface, an interface, a communications device electrically coupled to a switch, a monitoring station, and a communications link connecting the communications device to the monitoring station.

Abstract: An apparatus and method of sensing leakage of chemical liquid is provided. The apparatus for sensing leakage of chemical liquid, includes a sensing unit measuring a flow rate of chemical liquid being supplied to a process chamber, a process control unit judging whether leakage of the chemical liquid has occurred using the measured flow rate of the chemical liquid and generating a control signal, and an equipment control unit receiving an input of the control signal and controlling an operation of equipment.

Abstract: A water meter with an emergency shutdown is a dual purpose water meter, which records the accumulated water consumption of individual runs as any regular water meter, and detects water leakage or uncontrolled flow by comparing each single continuous run in non-equal batches with a set target quantity. The water meter shuts down the water flow if a single continuous run reach that target. The water matter is adaptable to any type of water meter or method of recording, turbine, vertical turbine, positive displacement, multiple jet, propeller, or magnetic or electronic flow measuring.

Abstract: A fluid leak detection system mounts to a hose line segment of the type comprising at least an inner carcass and an outer containment carcass separated from the inner carcass by a collection space. The system includes a housing defined by sidewalls externally mountable to the hose line segment and having an internal housing chamber in fluid communication with the collection space. A system sensor casing mounts through a sensor housing sidewall and a plurality of alternatively configured sensor units are provided, each interchangeably coupling with the sensor casing. The sensor units detect the presence of fluid within the sensor housing and communicate the fluid status of the chamber for remote evaluation.

Abstract: A method and apparatus for determining a fluid level within an enclosed housing. The present invention provides an enclosed housing having a dynamic fluid level contained therein. The apparatus includes an electromagnetic radiation source for directing electromagnetic radiation rays toward the interior of the enclosed housing and an electromagnetic radiation detector for receiving and measuring reflected electromagnetic radiation rays. The electromagnetic radiation detector provides a detector output signal to a controller. The controller interprets the detector output signal to determine whether the fluid level has statically reached a desired level and then generates a controller output signal for indicating that the fluid level has statically reached the desired level. The method includes the steps of generating a logic signal in response to the measured electromagnetic radiation and analyzing the logic signals over a period of time to determine whether a predetermined fluid level has been reached.

Abstract: A local logic solver operates with a local smart valve controller to control and test a local field-mounted emergency isolation valve device, outputting a local indication of trouble on the device, which is mounted in the field away from the facility's central control panel for the process. Accordingly, the operation of the overall system is simplified by eliminating the need for an external computer to diagnose any problems. A local control panel includes an indicator light substantially adjacent to or in close proximity to the device being monitored to alert personnel of detected faults. Detected faults are time-stamped locally to generate documentation and to track the elapsed time, starting when the degraded state of the device was detected and first signaled as a problem.

Abstract: A water leakage monitoring system including a water leakage position estimator which includes a periodic data acquiring unit for fetching predetermined-period flow rate pressure data stored in a monitoring device, and for fetching a signal related to a flow rate change and pressure changes expecting a water leakage reaction time calculating unit for calculating a pressure reaction time lag between two pressure changes, a pressure propagation velocity estimating unit for estimating a pressure propagation velocity using the pressure reaction time lag and a distance between two pressure gauges located in a water distribution block stored in a pipeline network map data, and a flow rate change position estimating unit for receiving a signal related to the flow rate change, and estimating a flow rate change position using pressure propagation velocity and a flow meter and pressure gauge locating positions of the pipeline network map data.

Abstract: Disclosed are portable, easy-to-install apparatuses for detecting and containing fluid leaked or otherwise discharged from a fluid-filled device and for facilitating testing and maintenance of the apparatus and fluid-filled devices. In one aspect of the disclosed invention, upon sensing a fluid discharge, the apparatus activates audible and/or visual alarms and directs the discharged fluid to a predetermined drainage area to prevent damage to areas surrounding the fluid-filled device. In another aspect of the present invention, no plumbing or electrical wiring is required to install the apparatus, thereby allowing an unskilled individual to easily and inexpensively install the apparatus. In yet another aspect of the present invention, the apparatus may be easily located since it is not dependent on gravity or a drainage pipe for discharge of the fluid. Furthermore, the apparatus optionally includes an integral leveling mechanism to accommodate leveling of the apparatus when placed on uneven surfaces.

Abstract: The present invention provides a method, an apparatus and a computer program to detect the liquid leakage of a liquid transfer device. In particular, the present invention is directed to a method, an apparatus and a computer program that detects the liquid leakage of a liquid transfer device with electrical means.

Abstract: A float assembly light indicator for use in detecting water levels within a container, such as a Christmas tree stand, includes a float housing having multiple float switches therein and are operably connected to a remotely locatable water level light indicator.

Abstract: A fueling environment that distributes fuel from a fuel supply to fuel dispensers in a daisy chain arrangement with a double walled piping system. Fuel leaks that occur within the double walled piping system are returned to the underground storage tank by the outer wall of the double walled piping. This preserves the fuel for later use and helps reduce the risk of environmental contamination. Leak detectors may also be positioned in fuel dispensers detect leaks and provide alarms for the operator and help pinpoint leak detection that has occurred in the piping system proximate to a particular fuel dispenser or in between two consecutive fuel dispensers.

Abstract: A remote sensing device includes a sensor and reference circuit. A resonant circuit of the sensor has a resonant characteristic modifiable by exposure to an external condition. The sensor is configured to produce a sensor signal associated with the modifiable resonant characteristic. A reference circuit of the remote sensing device is configured to produce a reference signal suitable for use in conjunction with the sensor signal. The reference signal is used to account for variations of the sensor signal due to variations in the inductive coupling between the remote sensing device and a reader designed to detect the reference signal and the sensor signal.

Abstract: A fluid leak detector is provided for a double carcass hose line segment and includes a sensor housing defined by sidewalls externally mounted to the hose line segment and having an internal housing chamber in communication with the collection space. An optical sensor is mounted through at least one sensor housing sidewall and positions an optical sensing element means within the sensor housing chamber for detecting a presence of fluid in the hose collection space. The optical sensor further includes analysis element means connecting to the optical sensing element means and positioned outside of the sensor housing one, wall, the analysis means generating data indicative of the fluid status within the hose collection space; and transmitter element means connecting to the analysis means for receiving data from the analysis element means and transmitting the data to at least one remote receiver.

Abstract: The Domestic Water Leak Automatic Detection and Control is a system to be installed in the home to detect any water leaks from plumbing, appliances and spills. The system is designed for the home owner to be simple and intuitive in nature. No setup or programming is required by the owner. Indicators assure the normal operation of the system. When an abnormal condition occurs, the system controller alerts by both visual and aural means and turns off the main water supply to the home.

Abstract: The invention relates to a method for actively monitoring pipelines guiding pressurized media and consumers, which are connected to the respective pipeline or pipeline system, by means of differential pressure measurement. According to the invention, monitoring occurs as to whether permanent and quasi-constant consumption takes place during a specific time period, preferably at the transfer point or behind the point of transfer between the supply device and consumer connection in a continuous manner or in predetermined cycles. If this is the case, it is possible to deduce an abnormal state, e.g. a leak, and an alarm is triggered or the downstream pipeline system is blocked.

Abstract: Leak detectors and leak detection methods (20) using a self contained unit having a pressure sensor (15) configured to be connected to an enclosed volume to be maintained at a pressure different from atmospheric pressure, an audible soung generator (18) and a LED (26), the audible soung generator (18) and the LED (26) being responsive to the pressure sensor (15) to emit an audible sound and a visible warning, respectively, when the pressure sensor senses pressure reaching a predetermined limit.

Abstract: A method and system for reliably detecting structure and water system leaks incorporates motion-sensing for determining whether there is activity in a building is occupied and measures humidity of the inside of the building. If there is no activity in the building, and an unexpected level of humidity or sudden change in humidity is detected, an alarm is generated and the building water system can be disabled by an electrically controlled valve. Current consumed by water-consuming and/or water vapor generating appliances can be detected and used to qualify the generating of an alarm or interruption of the water system, so that false alarms are not generated and the water supply is not interrupted due to operation of those appliances.

Abstract: A leak detection system includes a first water container, a water detection probe disposed in close proximity to the first water container, the probe having a sensing circuit for generating electrical signals when moisture is sensed by the probe, a water input conduit coupled with the first water container for supplying the first water container with water from an external water source, and a water shut-off controller electronically coupled with the detection probe for regulating the supply of water from the eternal source to the first water container in response to the signals generated by the sensing circuit of the probe. The system further includes an electronic shut-off valve, and the electronic controller includes a trigger circuit for converting signals from said probe to signals for operating the shut-off valve.

Abstract: Leak detection apparatuses located, at least in part, in the deadspace below a floor in an abode wherein the leak detection apparatus captures, detects and signals the presence of leaking water and other aqueous solutions.