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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Application No. | Application Title | Issue Date |
| 20120024055 | Method, System and Apparatus for Incorporating Capacitive Proximity Sensing in an Automated Fluid Transfer Procedure A fluid transfer apparatus includes a fluid transfer probe, a fluid level detection system, and a tip detection system. The fluid level detection system is configured to detect contact by the fluid transfer probe with a fluid surface within a receptacle from a signal ba... | 02/02/2012 |
| 20110314907 | CONTACTLESS FILLING LEVEL MEASUREMENT OF LIQUIDS The invention relates to a device and a method for the contactless capacitive filling level measurement of a filling medium in a container, the device having a plurality of measurement electrodes and at least one reference electrode.... | 12/29/2011 |
| 20110290013 | Motionless liquid level gauge having three electrodes A capacitive probe comprises a first electrode, a second electrode, and a third electrode. A cap is positioned on a first end of the first electrode and a first end of the second electrode. A base is positioned on a second end of the first electrode, a second end of the... | 12/01/2011 |
| 20110265562 | NON-CONTACT LIQUID LEVEL SENSING SYSTEM FOR HOUSEHOLD ELECTRIC APPLIANCES A non-contact liquid level sensing system for an electric appliance is provided. The electric appliance includes a liquid container for containing liquid. The non-contact liquid level sensing system includes a micro-controller and a plurality of sensors vertically align... | 11/03/2011 |
| 20110259098 | LEVEL SENSING APPARATUS There is provided a level sensing apparatus detecting the level of a detected material, the apparatus including: a circuit board; a first electrode and a second electrode having different dimensions, which are formed on one surface and the other surface of the circuit b... | 10/27/2011 |
| 20110239757 | Capacitive Measuring Method and Apparatus for Fill Level Detection and Correspondingly Equipped Laboratory Equipment The invention relates to apparatuses (100) for the capacitive determination of the fill level in the individual containers (5.1, 5.2) of a group (10) of regularly disposed containers of the same dimensions, wherein the apparatus (100) compris... | 10/06/2011 |
| 20110231127 | Apparatus for High Precision Measurement of Varied Surface and Material Levels An apparatus and method for measuring the level of a wide range of varied surfaces or materials housed within vessels, and for detecting contact with a solid surface within the vessel is disclosed. A high precision radio frequency admittance measuring system, using capa... | 09/22/2011 |
| 20110203366 | WATER LEVEL SENSING APPARATUS There is provided a water level sensing apparatus including: a body disposed to be exposed within a liquid tank and having an accommodating space therein; and a capacitance detecting unit accommodated in the accommodating space of the body, wherein the capacitance detec... | 08/25/2011 |
| 20110185808 | CAPACITIVE FILL LEVEL SENSOR AND METHOD FOR ESTIMATING A FILL LEVEL A capacitive fill level sensor for determining a fill level of a liquid is described. Two electrodes are provided having a plastic sheathing and a capacitance measuring device for detecting the electrical capacitance between the electrodes. An estimator device is used f... | 08/04/2011 |
| 20110162448 | FUEL SYSTEM ELECTRO-STATIC POTENTIAL DIFFERENTIAL LEVEL SENSOR ELEMENT AND HARDWARE/SOFTWARE CONFIGURATION This invention relates to a sensor element in a fuel system, and in particular, to an electro-static potential differential level sensor element for measuring fuel levels and fuel type in a fuel system. A sensor element includes two electrode plates mounted on a dielect... | 07/07/2011 |
| 20110155262 | Level Sensor and System Comprising a Level Sensor and A Fluid Reservoir A level sensor includes a base unit with a cavity. A first axial end of the cavity is adapted to hydraulically communicate with a fluid reservoir. A second axial end of the cavity is adapted to hydraulically couple to a fluid reservoir. A heating element is disposed in ... | 06/30/2011 |
| 20110146399 | 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 are aligned in a vertical array and each comprise a substantially planar p... | 06/23/2011 |
| 20110120219 | CAPACITIVE LIQUID LEVEL SENSOR The invention relates to a capacitive sensor (2) for detecting the level (52) of a liquid (54) in a tank (48). The inventive sensor consists of: a flat longitudinal support (4) comprising proximal (8), central (10) and di... | 05/26/2011 |
| 20110113878 | LIQUID-LEVEL SENSOR In a liquid level sensor according to the present invention, a first detecting electrode being always in a liquid to be measured, a second detecting electrode which measures a level of the liquid to be measured, and a third detecting electrode being always out of the li... | 05/19/2011 |
| 20110110792 | SENSORS AND METHODS AND APPARATUS RELATING TO SAME In one form a capacitive sensor is disclosed for immersion into a fluid, the capacitive sensor having a housing and first and second electrodes with the first electrode being disposed at least partially within the housing and electrically connected to a circuit, the sec... | 05/12/2011 |
| 20110110794 | SENSORS AND METHODS AND APPARATUS RELATING TO SAME In one form a capacitive sensor is disclosed for immersion into a fluid, the capacitive sensor having a housing and first and second electrodes with the first electrode being disposed at least partially within the housing and electrically connected to a circuit, the sec... | 05/12/2011 |
| 20110107833 | CAPACITIVE DETECTOR, METHOD FOR MANUFACTURING SAME, AND DEVICE FOR MEASURING THE INTEGRAL Capacitive detector and measuring device integrating it; the detector including: a ribbon made of a dielectric material, first and second electrodes in the form of combs formed on a first surface of said ribbon and a third electrode formed on the other surface of said r... | 05/12/2011 |
| 20110083504 | Device for measuring the fill level in a liquid container A device for measuring the fill level in a liquid container has a fill level sensor secured in the liquid container. According to the invention the fill level sensor is supported in pendulum-like fashion on the liquid container about at least one rotary axis.... | 04/14/2011 |
| 20110079078 | Fuel Level Sensor An fuel level detector includes a substrate fixedly mounted inside an fuel tank, a narrow elongated first electrode arranged on the substrate and kept in contact with the fuel oil in the fuel tank, a second electrode formed of a plurality of electrode elements arranged ... | 04/07/2011 |
| 20110058961 | COMBINED OIL LEVEL OR CONDITION SENSOR AND SIGHT OIL LEVEL GAGE The invention provides an oil level or condition sensor featuring a housing and a baffle or plate arrangement arranged in the housing, where the baffle or plate arrangement forms a capacitor when the housing is filled with oil, the baffle or plate arrangement being resp... | 03/10/2011 |
| 20110027104 | SENSOR FOR SWITCHING A PUMP ON AND/OR OFF The invention relates to a sensor for switching a pump on and/or off, with at least one first and a second electrode, which form a capacitance which may be influenced by way of the fluid to be delivered, and with evaluation electronics connected to the electrodes, where... | 02/03/2011 |
| 20110000296 | SELF-COMPENSATING CAPACITIVE LIQUID LEVEL DETECTOR Method and corresponding apparatus for liquid level detection with a liquid level detection unit (10) with a capacitive liquid level detector (14) with a input capacitance (C) changing if the capacitive liquid level detector (14) contacts a liquid, ... | 01/06/2011 |
| 20100326282 | DEVICE FOR REGULATING THE LEVEL OF A LIQUID IN A BOILER OF A COFFEE MACHINE The present invention relates to a device to regulate the level of a liquid inside a boiler of a coffee machine, having a transparent duct connected to the boiler and designed to visibly display the level of the liquid inside the boiler, a capacitive sensor that can be ... | 12/30/2010 |
| 20100326186 | FILL LEVEL DETECTION APPARATUS A fill level detection apparatus (23) is introduced for ascertaining a fill level in a storage tank (19) for a liquid reducing agent for use in an exhaust gas aftertreatment device (3), having a fill level detector (21) and a driving and eval... | 12/30/2010 |
| 20100313654 | METHOD FOR FILL LEVEL MEASUREMENT A method for the fill level measurement, in a container in which a first and/or a second fill substance can be located, for each fill substance present in the container. A rest position can be ascertained, which corresponds to the position, which the fill substance uppe... | 12/16/2010 |
| 20100313653 | Admittance meter for monitoring a medium An admittance meter having an electrical alternating signal source, a diode ring operated as a synchronous rectifier with at least four diodes connected in series and in the same direction in succession, a measuring sensor, and an evaluation unit. The diode ring is subj... | 12/16/2010 |
| 20100294036 | FLOW SENSOR A method of monitoring the effectiveness of a liquid distribution system having a body arranged to receive liquid from a supply source and at least one distribution line for receiving liquid from the body, includes sensing the rate at which the liquid flows through the ... | 11/25/2010 |
| 20100294035 | Process for measuring a liquid level in a tank and associated system Process for measuring a liquid level in a tank and a system suitable for such process that consists in:
| 11/25/2010 |
| 20100251816 | FUEL GAUGING SYSTEM UTILIZING A DIGITAL FUEL GAUGING PROBE A fluid measurement system utilizes one or more digital probes that communicate over a digital bus to a fluid gauging computer. The digital probes incorporate a capacitance to digital circuit that converts probe capacitance to a digital value. The digital value is commu... | 10/07/2010 |
| 20100242595 | 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 the tank. The multiple buoyancy load sensors are each made of different ... | 09/30/2010 |
| 20100229642 | DISPENSE VOLUME MONITOR FOR ARRAYS The reagent volume dispensed into wells (3) of a test plate (2) is determined by moving an upper electrode (5) of specific profile into each well to an optimum position above the well bottom, by determining the capacitance value of the capacitor for... | 09/16/2010 |
| 20100212419 | FLUID LEVEL MEASURING DEVICE FOR A BEVERAGE DISPENSER A level sensing apparatus and method of use for use with a beverage server to indirectly sense the level of beverage retained in the server. The server having a body for receiving and retaining beverage with an opening in the body for receiving the level sensing apparat... | 08/26/2010 |
| 20100186526 | Method for mounting a capacitive level sensor in a liquid tank Method for mounting a capacitive level sensor inside a liquid tank having a bottom wall, the sensor having a foot and a measuring portion comprising at least one capacitive element supported by a rigid support extending from said foot, wherein the foot is fixedly secure... | 07/29/2010 |
| 20100180679 | All Working Condition Continuously Measuring Liquid Level Meter for a Steam Drum of a Boil and the Liquid Level Computing Method Thereof A type of liquid level gauge for continuous measurement of boiler steam drum under full conditions and its method for calculation of liquid level, this liquid level gauge includes one metal measurement tube and one transmitter. The steam-side pipe connected to steam dru... | 07/22/2010 |
| 20100154534 | METHOD AND APPARATUS FOR CAPACITIVE SENSING THE TOP LEVEL OF A MATERIAL IN A VESSEL A method and apparatus for sensing the top level of a material in a vessel is disclosed. A method and apparatus for sensing changes in the top level of a material in a vessel is disclosed.... | 06/24/2010 |
| 20100126268 | FLUID LEVEL SENSOR A fluid level sensor to determine the level of fluid into a container used in negative pressure wound therapy. The sensor includes an array of conductive plates to produce electric field lines through the container and fluid within, the plates serving as the plates of a... | 05/27/2010 |
| 20100102799 | CARTRIDGE WITH FILL LEVEL DETECTION A cartridge (2) with a fill level detection system (10, 10′, 10″), the cartridge comprising a substantially rigid containing wall (4) having a tubular wall portion (12) surrounding a chamber (18) for receiving liquid therein, a plu... | 04/29/2010 |
| 20100071459 | SYSTEM FOR MEASURING A PHYSICAL VARIABLE The invention relates to a system for measuring a physical variable using a plurality of measuring sensors (20). Said system is characterized in that an inverting measuring signal amplifier (17; 17.1, 17.2) is connected downstream of every measuring sensor... | 03/25/2010 |
| 20100005879 | Apparatus for Capacitive Determining and/or Monitoring of Fill Level of a Medium An apparatus for capacitive determining and/or monitoring of fill level of a medium in a container. The apparatus includes: A probe unit; a control unit, which supplies the probe unit with a drive signal; and an evaluating unit, which receives a response signal from the... | 01/14/2010 |
| 20100000316 | System for Manufacturing a Modularly Structured Apparatus for Determining a Physical Process Quantity, and Standardized Components A system for providing different versions of a modularly structured apparatus for determining a physical process quantity, wherein at least two devices to be generated from the system are based on different measuring principles, including a number sensor units (41 | 01/07/2010 |
