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8171786 |
Fuel inventory monitoring system
An ultrasonic-based or radar-based apparatus and method for fuel inventory measurements and for the detection and characterization of materials in a fuel tank, including sludge, water,...
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8141421 |
Tank measurement system using multiple sensor elements
A tank or vessel volume measurement apparatus that includes multiple buoyancy elements. The buoyancy elements can be placed within a perforated tube to reduce any effects from turbulent flow within...
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8117911 |
Gauge for bulk fuel storage tanks
This invention relates to bulk liquid storage tanks, and in particular to an improved tank gauge for measuring the amount of liquid within the tank and for monitoring the movement or settling of...
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8096177 |
Fuel inventory monitoring system
An ultrasonic-based apparatus and method for fuel inventory measurements and for the detection and characterization of materials in a fuel tank, including sludge, water, microorganisms and...
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7987710 |
Pressure vessel with CO2 liquid level indicator for a paintball marker
A pressure vessel 12 with a CO2 liquid level indicator 14, for use with a paintball marker 10, includes a magnetic float assembly 42 disposed within the pressure vessel 12 and adapted to float on...
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7880625 |
Liquid level warning device
A liquid level warning device with a separate audible alarm is disposed in a liquid tank for indicating the amount of liquid in the tank. The device also includes a plurality of float switches...
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7748269 |
Low liquid level detecting device and method
The invention discloses a low liquid level detecting device comprising a float sensor and a casing. The casing has first to third chambers formed between an upper wall and a bottom wall. The top...
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7707882 |
Gauge to indicate the level of beverage held in a beverage container
An insulation beverage container (10) is provided and includes a gauge (40) for indicating the level of beverage held in the container (10). The gauge (40) includes a float (42) positioned within...
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7401571 |
Gutter system indicator for indicating a clogged or partially clogged condition
A gutter system includes an indicator for indicating that the gutter system is clogged or partially clogged. The indicator includes a floating device such as a ball. There is provided a retainer...
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7278293 |
Submersible probe
A probe for deployment in a fluid measures produces an output representative of a parameter associated with the fluid. The probe includes a density control system to control a density of the probe...
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7259384 |
Fluid level optical detector with float having opaque and transmissive portions
Systems and methods for fluid level detection are disclosed. In one embodiment, a sensor assembly includes at least one optical fiber adapted to at least one of transmit and receive an optical...
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7216537 |
Fiber optic flammable liquid measuring system
An optical liquid measuring system for measuring the amount of flammable liquid in a storage tank consisting of a pair of encoder disks that are operatively connected to a pair of floats through a...
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7066024 |
Float adapted to track an interface between two liquids of differing density
A float adapted to track an interface between two liquids of differing density, includes a hollow buoyant body having an interior cavity adapted to retain liquid. At least one upper access opening...
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7021138 |
Fuel feeding apparatus
A fuel feeding apparatus is provided with a cap body for closing an opening of the tank, and a liquid level detector that is attached to the cap body and detects a liquid level of the fuel. The...
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6945108 |
Fuel level system for automobile
The present invention relates to a fuel level system for an automobile, and more particularly, to a fuel level system for use in informing a driver of the amount of remaining fuel in a fuel tank of...
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6928862 |
Method of monitoring dual-phase liquid and interface levels
A dual-phase level monitoring (DPLM) instrument that provides continuous signals that enables determination of the location of the top surface of the lighter of two immiscible fluids (the product)...
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6880398 |
Fuel level detection device for a fuel tank
A fuel level detection device detects the level of fuel in the fuel tank. The fuel level detection device comprises a body including at least one mounting station and a fuel level detection unit....
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6851314 |
Apparatus and method for detecting a leak in a swimming pool
An apparatus and method for detecting water loss from a swimming pool includes a first container having an upper end, a lower end, an inner cavity and at least one opening allowing swimming pool...
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6813946 |
Liquid sensing
Liquid sensing apparatuses and liquid sensing methods are described. In some embodiments, a liquid sensing apparatus includes a magnetic element; a source magnetic field, which produces on the...
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6802219 |
Tide staff system
The present invention relates to a segmented cylindrical tide staff system [11] for erection at remote areas for dynamic calibration of electronic tide meters and computer models of tides, said...
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6786091 |
Gutter overflow detection device and system
An overflow detection device is capable of determining whether liquid outside of the device has reached a predetermined level associated with an overflow condition. A container has a closed end and...
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6732580 |
Level sensor and control
A sensor for measuring the level of free-flowing particulate material in a storage bin comprises an electronic load cell fixedly positionable at the upper end of the storage bin and having a cable...
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6705163 |
Liquid level gauge and spool lock therefor
A gauge assembly for use in measuring the level of a liquid in a storage tank is disclosed. The assembly includes a housing having an interior and having a lower opening communicating with that...
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6588272 |
Redundant level measuring system
A redundant level measuring system comprises a chamber for fluidic coupling to a process vessel whereby material level in the vessel equalizes with material level in the chamber. A float including...
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6536277 |
Level-tracing water-monitoring apparatus
A water-monitoring apparatus includes a frame being installed by water. A reel is mounted on the frame. A tension cable is wound on the reel and including a lower end and an upper end. A buoy is...
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6508120 |
Fluid level monitor with at least partially submersible buoyant element
This invention discloses a fluid level monitor including a buoyant element suspended from a filament wound on a spool, a load sensor that senses a tensile force in the filament and a rotation...
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6502461 |
Method and apparatus for monitoring liquid level in a container
A method and system for remote monitoring of liquid level 21 within a container 12, such as the level of fuel within a propane cylinder. A magnetic float 20 disposed within the container 12 floats...
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6481277 |
Temperature control unit and sight glass
An apparatus for indicating a fluid level in a reservoir includes a conduit for communication with a reservoir and including a sight glass. A buoyant primary float is provided within the conduit,...
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6464465 |
Level control device for a wastewater collection basin
A level control device is adapted for use in a wastewater pump station. The level control device cooperates with a discharge pump to control the volume of wastewater contained in the pump station....
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6427529 |
Instrument for surveying the depth and volume of oil and brine in a static fluid column of an oil well
An instrument and method for surveying the static fluid column of a cased oil well and measuring the volume of oil and brine in the fluid column is disclosed. The instrument uses the inherent...
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6326895 |
Fluid level sensor for fluid tanks of boats
A fluid level sensor for a fluid tank of a marine vessel is provided. The sensor includes a sensor mount and further includes a circuit housing that is pivotally connected to the mount to pivot...
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6305220 |
Fuel gauging system for a motor vehicle fuel tank
A fuel gauging system for a motor vehicle fuel tank, including a housing (100) supporting a resistive element (200), an arm (300) pivotally mounted on the housing (100) and comprising at least one...
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6253609 |
Liquid level gauge with hinged float arm
A float-type liquid level gauge (20) is provided for measuring the level of a liquid within a storage tank (22). The gauge includes a gauge head (30) adapted for mounting to a portion of liquid...
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6236324 |
Elastic plate liquid level sensor
A liquid level sensor intended to be placed in a tank or sump. The Sensor includes a displacer attached to one side of an elastic plate and an optical shutter blade attached to the other side. The...
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6202487 |
Liquid level detecting device including a container having a first receptacle and a second receptacle
A device for signalling a predetermined height of fluid within a switching device is disclosed. The device includes a container having a first section, a second section, and a novel sealing...
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6170328 |
Lever gauge with hinged arms
Liquid level lever gauge with a hinged counterweight segment, or a hinged float arm segment or both a hinged float arm segment and a hinged counterweight segment. The invention permits lever arm...
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6125697 |
Apparatus and method for measuring the quantity of liquid in a liquid reservoir
An autonomous apparatus for measuring the amount in volume, weight or level of a liquid in a tank. The invention provides an easy to read digital numerical display in what ever units the user has...
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6029514 |
Device for measuring the volume of liquid in a container
A device for measuring and monitoring the volume of liquid in a container comprises an adapter for mounting the device in an opening in the top wall of the container. The adapter supports a beam...
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6026683 |
Liquid level/volume measuring system using strain-gauge load cell and method of measuring liquid level/volume
A liquid level measuring system using a strain-gauge load cell is disclosed. The system includs a buoyancy weight standing upright in a liquid held in an object to be measured in a long bar shape,...
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6003366 |
Liquid level indicating method and system
A liquid level indicating system includes a plastic link chain suspended in a container extending between a high level position and a low level position of a liquid in the container. A weighing...
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5924285 |
Master cylinder tank
An object of the present invention is to provide a master cylinder which decreases the number of necessary parts, achieves easy assembly and stabilized quality, and surely prevents a float from...
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5847276 |
Fluid displacement level, density and concentration measurement system
A method and apparatus for monitoring characteristics of a fluid contained in a vessel includes a fluid displacer suspended in the vessel. The buoyant force acting on the fluid displacer is...
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5600998 |
Level sensor offset mounting mechanism
A level sensor offset mounting mechanism that mounts in the tank fill pipe of an underground fuel tank and provides an offset for the lower level sensor portion from the drop tube. The level sensor...
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5315873 |
Liquid level detection apparatus and method thereof
Disclosed is a liquid level detection apparatus using the Archimedean principle suited for the measurement of the level of a liquid, in particular a high temperature molten metal. The liquid level...
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5245874 |
Total precipitation gauge with float sensor
A total precipitation gauge (10) incorporates a float gauge (16) extending downward to a liquid level (18) in a precipitation storage container. The float gauge (16) is formed with an elongate...
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5157968 |
Apparatus for measuring the specific gravity, weight, level, and/or volume of a liquid in a container
Apparatus for measuring the specific gravity, weight, level, and/or volume of a liquid in a container includes two load cells supported at the upper end of the container, a first body of known...
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5136883 |
Liquid level gage system
A liquid level gage system is disclosed. This system includes a displacer secured to a cable and movable in response to winding or unwinding said cable around or from around a rotatable drum. The...
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5132923 |
System for monitoring storage tanks
A system for monitoring a storage tank containing a fluid. The system measures the buoyancy force acting on a displacer suspended in a storage tank by means of a load cell. The resulting force...
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5073253 |
Froth level measurement
A wire guided float level measurement system includes a float, a nozzle and an ultrasonic level detector which are attachable to an open frame. The float, which is supportable on a froth, is...
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5069068 |
Fluid level maintenance sensor for use in a tank test system
A fluid level maintenance sensor or use in a tank test system and which includes an upper sensor coil and a lower sensor coil mounted on a level sensing tube. A float carrying a ferromagnetic ring...
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