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7561057 |
Method and apparatus for detecting severity of water leaks
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...
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7561040 |
Wireless probe system and method for a fueling environment
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...
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7487793 |
Valve assembly with overfill protection device and capacitive liquid level gauge
A valve assembly, such as a tap for a liquefied gas cylinder, includes an overfill protection device and a liquid level gauge having an electrode assembly comprising a pair of lamellar electrodes...
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7471206 |
Float assembly light indicator for Christmas tree stand
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...
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7466236 |
Device for judging types of liquid in container and control method therefor
[Theme] To provide a device or a judging method for judging the type of liquid inside a container that can be applied to containers of various shapes and can be applied to cases where the remaining...
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7451646 |
Device and method for resonant high-speed microscopic impedance probe
A resonant high-speed microscopic impedance probe useful for small scale impedance measurements and/or cell and particle counting.
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7417552 |
Flood alarm
A flood alarm is disclosed. In an illustrative embodiment, the flood alarm includes a float assembly and a telephone system interface module connected to the float assembly. A method of indicating...
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7387023 |
Method and apparatus to reject electrical interference in a capacitive liquid level sensor system
Methods, systems, and computer program products for measuring a capacitance between a probe and a liquid, pausing movement of the probe based on a rate of change of the capacitance, further...
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7373817 |
Solid state fluid level sensor
A sensor system for sensing liquid level in a bilge, for use in automatic bilge pump actuation. First and second field effect sensors are potted or sealed within a container or the bilge wall and...
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7304583 |
Device for detecting a defined filling level of a medium in a container
An apparatus for detecting a predefined fill level of a medium in a container having a lid by means of a conductive measuring system, which has at least two measuring electrodes extending into the...
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7295126 |
Perforated plane moisture sensor
A moisture sensing apparatus, system and method. In general, a surface can be provided, and one or more conductor pairs located in a plane of the surface. Each conductor of the conductor pair(s) is...
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7284428 |
Sensor housing for use in a storage vessel
A detection apparatus for use in a vessel for measuring a fluid includes a tubular connected to a housing containing sensors, wherein the housing includes a top, a bottom, and a hole disposed in...
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7271729 |
Novelty moisture detector for plants
A novel moisture detector for detecting moisture in potting media or soil for plants includes a body formed to represent a creature. Inside the body is a processor and a battery. One or more probes...
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7260988 |
Fuel level sender circuit with alternating current direction
The system includes a fuel sender and a controller. The fuel sender has a variable resistance and the variable resistance varies based on the quantity of fuel in the fuel tank. The controller is in...
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7239246 |
System and method for detecting water leakage
A 3D liquid detection sensor, liquid-sensitive building material, and liquid detection systems have been provided. The 3D sensor comprises a 3D liquid detection field and an electrical connector to...
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7232077 |
Fluid level sensing apparatus and method for a spray applicator
The present invention relates to a level sensing spray applicator. In one embodiment, the spray applicator includes a gun that receives a liquid and a supply vessel coupled to the gun. The vessel...
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7182017 |
Beverage server with beverage detector
Disclosed is a conductivity detector assembly for use with a beverage preparation apparatus as well as a hot water dispensing apparatus. The conductivity detecting assembly includes a...
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7161492 |
Mechanical self-cleaning probe via a jiggler
A device, having a container for holding a fluid moving therein and a conductance probe installed therein for providing a conductance signal indicating whether it is in contact with the fluid,...
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7145465 |
Liquid level sensor having a virtual ring
A liquid level sensor for conductive liquids having a virtual bias ring to prevent false “full” indications. The sensor is an inexpensive conductive probe that can be installed in any tank or...
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7135981 |
Fuel level variation detector for marine vehicle
A signaling device for a marine vehicle having a fuel tank, a fuel level value detected in the fuel tank, and a blower to evacuate fuel fumes. The signaling device comprises: a fuel level variation...
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7126486 |
Method and apparatus for moisture detection in exterior sheathing of residential and commercial buildings
An automated device monitors moisture content in exterior sheathing of a building for detecting moisture intrusion into the sheathing walls. A plurality of moisture sensors are embedded in selected...
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7111510 |
Liquid level detection device
A liquid level detecting apparatus having detachable terminals and capable of holding down the formation of silver sulfide is provided. The apparatus includes a movable contact displaced in...
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7095330 |
Disposable liquid level sensor having a virtual ring
A liquid level sensor for standard bottles containing highly viscous materials such as gels so that the bottles may be inserted into an appliance to alert a user when the bottle is empty. The...
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7042362 |
Apparatus for monitoring leakage of process cooling water in furnace
A method and an apparatus thereof for monitoring leakage of process cooling water (PCW) in a furnace. In the method, a bellows used to deliver the process cooling water is covered by a protecting...
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7036224 |
Method of making fluid sensor probe
A fluid sensor probe such as a temperature probe uses heat shrink tubing to seal and provide strain relief at a proximal end of the probe. The heat shrink tubing uses a layer of hot melt adhesive...
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6989755 |
Signal transmission device and method
A signal transmitting apparatus which makes exchanging information when pouring a liquid possible. A container body 201 of a transmitter side container 20 holds an electrically conductive...
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6975216 |
System and method for indicating fluid condition
A fluid condition indicating system and method using visual and audible devices. The system includes a circuit having visual and audible indicators, a power supply, and a plurality of switches or...
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6972685 |
Liquid level sensor
A liquid level detecting apparatus resistant to the deterioration and corrosion thereof is provided while holding down an increase in the manufacturing cost thereof. This apparatus 1 has fixed...
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6964278 |
Non-invasive gauge glass liquid level sensor apparatus
An apparatus is disclosed for electronically and non-invasively sensing liquid level in a boiler or other liquid-containing vessel. The apparatus, comprising a sensor and sensor integrated circuit...
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6938476 |
Apparatus and methods for sensing fluid levels
Devices and methods are disclosed for sensing the level of a fluid in a reservoir. The device comprises a generator for generating symmetrical pulses of electric potential, a ground generator in...
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6930611 |
Water activated release triggering mechanism
A water activated release triggering mechanism is removably held to an exterior surface of a buckle housing and includes at least two probes and at least two batteries distributed between...
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6930609 |
Device and method for transmitting data between a sensor and an analyser unit
A device for transmitting data between a sensor, in particular a capacitive level sensor, and an analyser unit, whereby the sensor and the analyser unit are physically separate from each other and...
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6920787 |
Apparatus for determining and/or monitoring the filling level of a filling material in a container
The invention relates to a device for determining and/or monitoring the level of a filling material in a container. According to the invention, an oscillatable unit is provided which is fastened to...
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6904800 |
Low-water cut-off system
A low-water cut-off system [A] determines if fluid [W] within a boiler [ 16 ] or other enclosure drops below a predetermined level within the enclosure. A signal generator introduces a signal into...
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6880397 |
Fluid level sensor
A device for sensing a level of a fluid, the device including a microcontroller and a probe coupled to the microcontroller. The microcontroller applies a given DC potential to the probe for a first...
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6873263 |
Water leak detection
A battery powered water leak detector and audible alarm are held on a credit card sized plastic board that has sufficient unobstructed area for visible messages, such as advertising, to be printed...
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6857313 |
Self-calibrating capacitance gauge
A capacitive gauge, suitable for measuring a fluid level in a container, includes upper and lower capacitive elements. Also provided is a control unit for calculating the fluid level in the...
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6853305 |
Air-conduit condensation sensor
A tape-drive condensation sensor includes a probe with first and second spaced-apart electrodes that define a passage for air flow within a pneumatic conduit. A voltage source is coupled between...
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6832516 |
Integral ultrasonic liquid level continuous transmitter with independent high-level discrete alarm point level
An ultrasonic liquid level sensor instrument that combines a continuous transmitter that transmits though the air for measuring the level of liquid in a vessel on a continuous basis and a point...
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6832407 |
Moisture indicator for wet pick-up suction cleaner
The moisture sensor and indicator for a wet pickup vacuum cleaner, more particularly a wet extraction type carpet cleaner, is positioned in the suction duct to sense when water droplets or moisture...
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6823731 |
Liquid level sensing assembly and method for measuring using same
A sensing assembly senses a level of a liquid in a reservoir. The sensing assembly includes a first input port for receiving a first input voltage signal. The sensing assembly also includes a...
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6823730 |
Capacitive fill level measurement device
A capacitive fill level measurement device with a fill level sensor having a plurality of sensor fields, electrical wires for electrically connecting the plurality of sensor fields to a multipole...
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6819251 |
Measuring device
A recovery device ( 1 ) includes a container ( 11 ) for recovering pure solvent ( 10 ) A measuring device ( 12 ) includes a capacitive detector ( 13 ) which is provided to signal if the container (...
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6810902 |
Automatic water shut off system to prevent overflow of a plumbing device
A control circuit for a plumbing device that has a drain line and a water supply line includes a water sensor generating a potential overflow level signal in response to the water level in the...
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6776900 |
Level measurement for grease separators
An interceptor for removing grease from an effluent stream containing grease and water may be queried remotely to check it status. An output signal indicative of the amount of grease is transmitted...
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6761067 |
Scanning capacitive array sensor and method
A sensor for use in determining a level of a medium or detecting an object includes a plurality of spaced-apart electrically conductive members disposed on a nonconductive support. Each of the...
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6727822 |
Liquid level sensor apparatus and method of using thereof
A liquid level sensor apparatus and a method of using thereof for determining the level of a conductive liquid held within a container, wherein the container is subject to the accumulation of...
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6715350 |
Automatic tank gauge systems
A level sensor mechanism for detecting liquid levels in storage tanks. A conduit is provided having an upper portion and a lower portion. The conduit may be adapted to receive a cable therein, may...
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6705162 |
Probe assembly for monitoring the water level in electric resistor boilers
A probe assembly for monitoring the water level in boilers with an electric immersion resistor heater, of the type that comprises at least one sensor element to be arranged inside a hollow body...
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6696966 |
Automatic salt level monitor for a water softening device
The present invention provides an automatic monitor for use in a tank with a water soluble softening agent. The monitor includes a signal emitter that produces a signal capable of being detected by...
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