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| Number | Title | Issue Date |
| 8082785 | Inductive liquid-level sensor An inductive liquid-level sensor employs a central shaft supporting multiple independent electrical loops that may be interrogated to detect the proximity of the conductive element in the float rising and falling with changes in liquid height outside of the shaft. | 12/27/2011 |
| 8028575 | Liquid level detecting device A liquid level detecting device includes a rotative member having a bearing portion and a stationary member having an axis portion. The axis portion is fitted to a hole of the bearing portion, thereby rotatably holding the rotative member. The rotative member is int... | 10/04/2011 |
| 8015871 | Sender unit for sensing the level of remaining fuel in a fuel tank utilizing a non-contacting sensor The present invention relates to a sender unit for sensing the level of remaining fuel in a fuel tank utilizing a non-contacting sensor. The sender unit for sensing the level of remaining fuel in a fuel tank of a vehicle is fixed in the fuel tank to sense the level ... | 09/13/2011 |
| 7966879 | Fluid storage and dispensing system including dynamic fluid monitoring of fluid storage and dispensing vessel A monitoring system (100) for monitoring fluid in a fluid supply vessel (22, 24, 26, 28, 108) during operation including dispensing of fluid from the fluid supply vessel. The monitoring system includes (i) one or more sensors (114, 126) for moni... | 06/28/2011 |
| 7793539 | Electrostatic charge control for in-tank fuel module components A grounding arrangement for an in-tank fuel system includes a fuel level sensor assembly of a fuel module comprising a conductive card body and a resister card supported on the conductive card body. The resister card includes a conductive trace in conductive contact... | 09/14/2010 |
| 7784342 | Multi-slope variable resistance fuel sender unit A fuel sender unit is provided for deployment on a vehicle having a fuel tank. The fuel sender unit includes a float arm configured to move in relation to the volume of fuel held within the fuel tank. A fuel level sensor is coupled to the float arm. The fuel level s... | 08/31/2010 |
| 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 portion of the first chamber is formed with a top opening. The bottom p... | 07/06/2010 |
| 7703322 | Liquid level detecting device and method of manufacturing same A liquid level detecting device for detecting liquid level contained in a tank includes a float and an arm that moves in a prescribed manner when liquid level changes, a permanent magnet for forming a magnetic field, a hall IC for generating an electric signal in re... | 04/27/2010 |
| 7610806 | Electronic level gage assembly A thermowell extends downwardly into tank liquids from the roof of the tank. A magnetostrictive wave guide probe is positioned on the inside of the thermowell and a magnetic float is slidably positioned on the outside of the thermowell. The probe is connected to a h... | 11/03/2009 |
| 7591178 | Grounded wiper assembly for fuel sensor A grounded wiper assembly for a fuel sensor includes a wiper housing for rotation relative to a variable resistor and a wiper with at least one contact operatively supported by the wiper housing for contacting the variable resistor as the wiper housing rotates. The ... | 09/22/2009 |
| 7565837 | Fuel level sensor variable resistor assembly A variable resistor assembly is preferably adapted for use with a fuel level sensor and includes an arcuate resistive area including a plurality of radially oriented and spaced apart conductive contact segments, and further includes a wiper including an arm and at l... | 07/28/2009 |
| 7549333 | Fluid level sender assembly and method of making a fluid level sender assembly A fluid level sender mount assembly includes a first mounting member having a chamber and a second mounting member having an elongate docking portion. The docking portion may be sized to slidably fit and rotate within the chamber to permit positioning the second mou... | 06/23/2009 |
| 7467549 | Electrostatic charge control for in-tank fuel module components A grounding arrangement for an in-tank fuel system includes a fuel level sensor assembly of a fuel module comprising a conductive card body and a resister card supported on the conductive card body. The resister card includes a conductive trace in conductive contact... | 12/23/2008 |
| 7467550 | Fuel tank float arm assembly The invention concerns a float arm assembly for use in a vehicle fuel tank and a method of operating the float arm assembly to determine a level of fuel in the tank. First and second resistor cards are electrically connected in series and each includes a pivoting fl... | 12/23/2008 |
| 7437929 | Liquid level detector The present invention provides an inexpensive small-sized liquid level detector. A liquid level detector 1 includes a float moving in accordance with variations in liquid level, a hard circuit board 5, resistors 12a and 12b ... | 10/21/2008 |
| 7423541 | Excessive product usage detection using a level monitoring system A system for detecting excessive usage of product in a storage tank is provided. The system comprises a monitor and a data center. The monitor is operatively coupled to the tank for monitoring a level of product stored therein. The data center is in communication wi... | 09/09/2008 |
| 7418861 | Mechanically self actuated liquid level sensor A liquid level sensor for measuring liquid levels in underground and above ground containers includes a frame formed to have an elongate hollow tubular configuration that encloses a cavity. A cam pivot has an end extending into the cavity from a first inner wall por... | 09/02/2008 |
| 7409860 | Fuel level measurement device A fuel level measurement device has a fuel level sensor carried by a fuel level float at the distal end of a pivoting float arm of the device which is preferably part of a fuel pump module located inside of a fuel tank preferably for automotive applications. Prefera... | 08/12/2008 |
| 7398682 | Low fluid level detector system A fluid level detector system, which may measure the amount of fluid in a reservoir, and may further trigger an alarm when the fluid level in the cassette reaches a low level condition. The cassette's reservoir may contain a transient sterile solution, which is movi... | 07/15/2008 |
| 7377162 | Method and apparatus for liquid level sensing A liquid level sensing arrangement for a tank may include a float having a disc-like shape and a sensor that detects a position of the float relative to the tank. The float may have an overall height/total displacement ratio of 0.5 or less. The float may have a rang... | 05/27/2008 |
| 7353704 | Storage tank external gauge system Provided herein are devices useful for guiding cables, wires, cords, and the like. A device according to the present invention is particularly useful for guiding a cable that is used in providing an external liquid-level gauge on an oil tank. A cable guide means acc... | 04/08/2008 |
| 7350413 | Liquid level detection apparatus A liquid level detection apparatus of the present invention includes contacts provided at a distal end portion of a contact plate, and resistance plates which are formed on a wiring board, and have respective conductor portions over which the contacts can slide, res... | 04/01/2008 |
| 7352073 | Ocean wave energy converter having an improved generator and ballast control The ocean wave energy converter uniquely includes a generator with a rotating inner rotor surrounded by a counter-rotating outer rotor for generating electricity. A reciprocating drive rod drives the inner rotor on the downstroke of the drive rod and the outer rotor... | 04/01/2008 |
| 7343800 | Linear position indicator system and method The present invention is directed to system and method for determining a fluid level. The system comprises a sensing rod assembly comprised of releasably connectable rod segments. Each rod segment carries a processor and a plurality of inductors. Each inductor gener... | 03/18/2008 |
| 7341046 | In-tank fuel delivery assembly with a pivotably mounted emissions canister A fuel delivery assembly including a fuel pump module having a mounting flange and a reservoir housing carried by the mounting flange, and an emissions canister pivotally mounted to the reservoir housing of the fuel pump module, wherein the emissions canister is piv... | 03/11/2008 |
| 7334455 | Leak detector of liquid in tank A leak detector comprising a sensor unit including a measuring slim-tube (13b) via the lower end of which a liquid in a tank is led in/out, a measuring tube (17) connected to the upper end thereof and having a sectional area larger than that the... | 02/26/2008 |
| 7337078 | System and method for remote asset monitoring A system and method for remotely monitoring conditions at a location and for controlling devices at the location. The inventive system includes: a data link in communication with an electronically readable instrument, the data link having a transceiver configured fo... | 02/26/2008 |
| 7322234 | Watertight fuel-gauge housing A watertight fuel-gauge housing comprises a housing at least partially positioned in the interior of a fuel tank; a gauge mechanism within said housing for providing an indication of the level of fuel within said tank according to the position of a floating device c... | 01/29/2008 |
| 7322744 | Temperature measurement device A temperature measuring device includes a temperature-responsive element that mechanically moves a first inductive assembly component relative to a second inductive assembly component in response to temperature changes. The movement of the first inductive assembly c... | 01/29/2008 |
| 7315250 | Electrical fluid activated switch An electrical field activated switch system includes a fluid container 14 having an aperture formed in a sidewall thereof. The floor of the primary tray 22 is positioned entirely beneath the fluid container and a secondary tray is positioned entirely w... | 01/01/2008 |
| 7313956 | Lubrication system The present invention is directed to lubrication system having a reservoir having a body. A follower is moveably disposed in the body. The system further comprises an alarm system having an electrical switch operably associated with the follower. The alarm generates... | 01/01/2008 |
| 7315165 | Sensor element A sensor element (30) measures a Hall voltage generated by a movable magnet (16). For this purpose, the sensor element (30) comprises a ceramic base element (40) which has connected therewith a detector element (46). The detector e... | 01/01/2008 |
| 7304292 | Displacement sensor having a phase variation of an impedance A displacement sensor comprising: a detecting portion including a coil arranged in such manner that a relative position to a magnetic response substance varies in correspondence to a displacement of an object to be measured; an oscillating circuit to supply an alter... | 12/04/2007 |
| 7304588 | Monitoring technology An apparatus for monitoring an article or system, particularly an LP or propane tank, includes a transmission unit, a base unit and a host unit. The transmission unit is disposed on or near the article or system and detects at least one parameter related to the arti... | 12/04/2007 |
| 7299675 | Fuel level sensor calibration A method of calibrating a level sensor installed in an empty tank. In the tank, the level sensor includes a float that is allowed to rest against a first stop, such as the tank bottom or tank top. This position of the float is stored as a first level, such as a mini... | 11/27/2007 |
| 7278311 | Liquid level and density measurement device A liquid level and density measurement device is disclosed. The device comprises an elongated magnetostrictive transducer and at least two transducer magnets embedded into floats that can freely move along a transducer. One float is relatively more sensitive to liqu... | 10/09/2007 |
| 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 and a locating system to track a location of probe in the fluid. ... | 10/09/2007 |
| 7274989 | Borehole equipment position detection system It is important to know the precise position of equipment when testing of the BOP, testing the wellhead, flow testing the well, kick control, well circulation and testing of spool trees between the wellhead and the BOP. Accordingly, there is provided a system for de... | 09/25/2007 |
| 7263964 | Oil sensor mounting structure Of a sensing part and a mounting part of an oil level sensor mounted to a sensor mounting opening at a bottom portion of an oil pan of an engine, an undersurface of the mounting part exposed to the outside of the oil pan is located above the lowest part of the oil p... | 09/04/2007 |
| 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 electrical communication with the fuel sender. Further, the controll... | 08/28/2007 |
