Famous Patents
In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7980143 | Apparatus for transforming energy of liquid flowing in a liquid supply pipeline An apparatus for use with a liquid supply pipeline, for transforming energy of liquid passing therethrough into electrical energy, comprising: a housing configured to be received within the pipeline and having a liquid inlet and a liquid outlet defining a flow direc... | 07/19/2011 |
| 7975560 | Magnetic shield for water meter A magnetic shield may be mounted to a water meter housing to protect the magnetic operation of the water meter from a tamper magnet, including both smaller, flexible tamper magnets and larger, strong tamper magnets. The shield may include a contoured portion and a b... | 07/12/2011 |
| 7886616 | In-line flow meter An in-line flow meter assembly for insertion into a pipe section, including a body comprising an elongate tubular section having a cavity; a turbine assembly support extending a determined distance from the body; a turbine shaft attached or coupled to the turbine sh... | 02/15/2011 |
| 7352171 | Paddlewheel speed correction A speed sensor for a marine vessel includes a correction circuit to correct any sensor non-linearities so that the sensor produces an output with a pulse stream having a constant pulse rate, and reduces the pulse-to-pulse variations of the pulse stream. The circuit ... | 04/01/2008 |
| 7347223 | Pipe flow stabilizer A fluid flow stabilizer for use in a flow of fluid in a conduit between a source of turbulence and a fluid control device. The stabilizer comprises a fluid conduit section having a first end with a mounting arrangement for mounting the first end to the fluid conduit... | 03/25/2008 |
| 7317260 | Wind flow estimation and tracking using tower dynamics A turbine control system for a variable speed electrical generator in a wind turbine mounted atop a support tower. The wind turbine converts wind energy into a driving torque applied to the generator. The control system includes a turbine support tower position sens... | 01/08/2008 |
| 7284455 | Electronic environment sensing instrument having an analog indicator An electronic environment sensing instrument having an analog indicator has a casing having a front panel with a scale, an electronic sensing and driving assembly mounted in the casing, a needle and a DC power supply. The electronic driving indicator assembly has a ... | 10/23/2007 |
| 7279190 | Control method for beverage making system A brewing control method for use with beverage brewing system (10) uses a controller (52) responsive to a comparison of preselected values of total brew water and total diluent water stored in a program memory (62) and to actual quantities measu... | 10/09/2007 |
| 7278310 | Non-invasive measurement system A non-invasive piston-cylinder measurement system of a cylinder and a piston mounted for axial movement within the cylinder. The cylinder comprises a non-magnetic cylinder wall. A magnet is mounted within the piston. A plurality of magnetically activated switches, s... | 10/09/2007 |
| 7245230 | Dual magnetic field sensor unit The present inventions relate to a method and apparatus for adding Automatic Meter Reading (AMR) capabilities to utility meters that generate a magnetic field comprising magnetic flux that varies proportionally with the rate of resource consumption. The apparatus co... | 07/17/2007 |
| 7143645 | Meter housing assembly and method of assembly A water meter housing assembly (10) comprises a cylindrical, plastic housing body (11), a non-cast housing bottom (13) of hydroformable or stamped brass, a single-piece strainer and sealing member (40) that is disposed in the housing bott... | 12/05/2006 |
| 7111520 | Increased sensitivity for liquid meter A lower cost meter comprised of an inner housing constructed out of a high permeable material surrounded by an outer housing constructed out of a lower cost, lower permeable material. A port is placed in the outer housing that runs down to the surface of the inner h... | 09/26/2006 |
| 7110894 | Fill level measurement device with removable and replaceable components A fill level measurement device includes at least first and second removable and replaceable components that each includes a non-volatile memory device. The device senses that the first removable and replaceable component has been inserted into the fill level measur... | 09/19/2006 |
| 7106054 | Device for sensing a rotary member such as a water meter turbine A device for sensing the rotation of a member rotating about an axis XX′ comprises m proximity sensors situated in a plane perpendicular to the axis XX′ and in m radial directions, m being an integer greater than or equal to 2. A mark fastened to the rotary memb... | 09/12/2006 |
| 7096729 | Disposable fluid flow sensor A disposable fluid flow sensor is disclosed herein, which generally includes a flow channel assembly comprising a flow channel tube in association with a disposable flow channel portion. A sensor die is located approximate to a thin interface or membrane formed from... | 08/29/2006 |
| 7028561 | Fuel dispenser fuel meter error detection device, system and method A flow switch used in conjunction with a fuel meter in a fuel dispenser to determine when fuel is flowing. A flow switch can only be activated if fuel is flowing through the flow path of the flow switch. If fuel is flowing as indicated by the fuel flow switch, but t... | 04/18/2006 |
| 7023205 | Eddy current sensor capable of sensing through a conductive barrier An eddy current sensor that can be mounted on the outside of a casing for a turbine or other rotating machinery to measure characteristics of nearby, moving, electrically conductive objects through the casing. Monodirectional and omnidirectional sensors are provided... | 04/04/2006 |
| 7007558 | Pulse transmitter A pulse transmitter for fluid metering includes concentric gearing, with the exciter gear concentric with the main shaft in the center. Because of this concentricity, one can put practically any number of additional coils (typically four) to get four or more outputs... | 03/07/2006 |
| 6997064 | Fluid metering and control device A fluid measuring device that displays fluid volume usage against fluid volume limits and a fluid control device that stops fluid delivery when the fluid volume limit is reached. ... | 02/14/2006 |
| 6959598 | Liquid level sensor for appliance and associated method A liquid level sensor for an appliance having a container in which liquid flows, and associated method. The sensor comprises a radio frequency oscillator and an antenna array connected to an input port of the oscillator. The antenna array comprises a longitudinal st... | 11/01/2005 |
| 6952970 | Modular utility meter A modular utility meter (1), for example, a water meter, is provided which comprises a meter base (2) and a meter head (3). The output signal from a transducer in the meter base (2) it processed in the meter head (3) to calculate t... | 10/11/2005 |
| 6942470 | Motor pump system with axial through flow utilizing an incorporated flowmeter and pressure controller Motor pump system includes an electromagnetic motor comprising a main body, a coil, and a movable hollow free piston. A flow meter is coupled to one end of the electromagnetic motor. A cylinder block is coupled to another end of the electromagnetic motor. At least t... | 09/13/2005 |
| 6926821 | Water treatment device with volumetric and time monitoring features A totalization meter system for a water treatment device, the device having an inlet aperture and an outlet aperture, and a channel for channeling water between the inlet and outlet apertures. A flow reactive device is positioned in the channel and is exposed to the... | 08/09/2005 |
| 6886414 | Power generating meter Flow device for generating electrical power from fluid flow. The device comprises rotatable structure driven by the fluid, which in turn drives a magnetic field generator. A magnetic sensor responsive to the magnetic field generates electrical power for powering ext... | 05/03/2005 |
| 6881507 | Method and apparatus for measuring the mass flow of hydrogen in a fuel cell The mass flow of hydrogen fuel in the anode loop of a hydrogen fuel cell is measured using a rotating flow meter. The flow meter includes a bladed rotor mounted for rotation within a tube disposed in the stream of hydrogen fuel flowing through the anode loop. A magn... | 04/19/2005 |
| 6850054 | Device and a method for non-contacting sensing of the rotational state of a rotor A device and a method for non-contacting sensing of the rotational state of a rotor (10). The rotor has a surface divided into an electrically conductive part (1e) and a nonconductive part (1f). Three electric coils (2a | 02/01/2005 |
| 6628741 | Non-volatile passive revolution counter with reed magnetic sensor A shaft revolution counter including one or more reed magnetic sensors interacting with one or more magnets attached to the shaft. The interaction generates voltage spikes in the reed magnetic sensors that are used as input signal to an electronic non-vol... | 09/30/2003 |
| 6612188 | Self-powered fluid meter The present invention provides for a self-powered fluid meter that uses the kinetic energy of a fluid being measured to provide power for circuitry that may perform functions related to the fluid measurement. An element is placed within a rotating magneti... | 09/02/2003 |
| 6502468 | Metering pulse transducer A metering pulse transducer for utility meters, including meters for water, gas and electric service, includes a rotor (20) with five magnetically switchable elements (22-26) spaced around the axis of rotation (21), a sensing coil (27) disposed around the... | 01/07/2003 |
| 6481293 | Elbow mounted turbine flowmeter A flowmeter includes a conduit having an elbow portion and a straight section downstream of the elbow. A turbine is mounted inside the conduit in the straight section adjacent the elbow portion. The turbine occupies less than the entire cross section of t... | 11/19/2002 |
| 6439062 | Flow anomaly detector An apparatus for detecting an anomaly in a flowing stream includes a set of blades rotatably suspended in the flowing stream and aligned with a normal flow direction of the flowing stream. The blades are configured to rotate at one rate when the anomaly i... | 08/27/2002 |
| 6435042 | Device and process for installation of encoder receiver transmitter on a gas meter A process and device for installing an encoder receiver transmitter (ERT) (30) onto a gas meter (20) prevents incorrect installation that otherwise requires meter (20) replacement. The device is a guide bracket (10) having a slot (14) for guiding an input... | 08/20/2002 |
| 6397686 | Hall-effect sensor placed in flowmeter to measure fuel flow rate A pick-up assembly for use in a liquid dispensing system utilizes a Hall-effect sensor integrated within a flowmeter to provide a measure of the rotational velocity of the rotor and hence the flow rate of liquid being transmitted through the liquid line. ... | 06/04/2002 |
| 6389909 | Flowmeter mounted with U-shaped bracket and clamping device A system for monitoring the flow of water through a pipe. A metering device is located in a pipeline. A transmitting unit including a sensor is contained within a housing which has a frame projecting horizontally outwardly from the housing. A clip having ... | 05/21/2002 |
| 6284129 | Water treatment device with volumetric and time monitoring features A totalization meter system for a water treatment device, the device having an inlet aperture and an outlet aperture, and a channel for channeling water between the inlet and outlet apertures. A flow reactive device is positioned in the channel and is exp... | 09/04/2001 |
| 6267013 | Flow anomaly detector An apparatus for detecting an anomaly in a flowing stream includes a set of blades rotatably suspended in the flowing stream and aligned with a normal flow direction of the flowing stream. The blades are configured to rotate at one rate when the anomaly i... | 07/31/2001 |
| 6256590 | Electromagnetic flowmeter In an electromagnetic flowmeter, the conventional derivation of flow velocity is corrected or replaced by an alternative calculation to take into account estimated non-linear dependence of field strength produced by the coil with applied coil current. Thi... | 07/03/2001 |
| 6149801 | Water treatment device with volumetric monitoring features A totalization meter system for a water treatment device, the device having an inlet aperture and an outlet aperture, and a channel for channeling water between the inlet and outlet apertures. A flow reactive device for measuring the volume of flow is pos... | 11/21/2000 |
| 6106705 | Water treatment device with volumetric and time monitoring features A totalization meter system for a water treatment device, the device having an inlet aperture and an outlet aperture, and a channel for channeling water between the inlet and outlet apertures. A flow reactive device is positioned in the channel and is exp... | 08/22/2000 |
| 5976362 | Faucet mounted water filter A faucet mounted water filter is described, comprising a base having a water inlet upstanding from a first end of the base and attachable to a water faucet, a first water outlet downwardly directed from the first end of the base for discharging unfiltered... | 11/02/1999 |
