Bizarre Patents
Vehicular Impact Signaling Device
An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.
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 |
| 7600422 | Electronic components packaging structure In a preferred embodiment, a thermal mass flow meter is provided with: a pipe arrangement that allows a fluid to flow therein, a chip-type heat-generating element that is anchored on the surface on the periphery of the pipe arrangement and used for heating the fluid... | 10/13/2009 |
| 7430903 | Fluid flow measurement using optical fibres A method of monitoring fluid flow uses an optical fiber having a heatable coating. The fiber is disposed within flowing fluid, and the heatable coating heated so that heat is transferred from the coating to the fluid. Optical measurements of the temperature of the h... | 10/07/2008 |
| 7418859 | Device for measuring a volume flow with inductive coupling A device for measuring a volume flow, especially a tidal volume flow sensor, with a flow channel (1) and with a sensor element (6) arranged within the flow channel (1), is shown and described. The task of providing such a device, in which the se... | 09/02/2008 |
| 7360445 | Flow sensor A flow sensor need not have any special terminal for voltage value supply, and can obtain a ratiometric output function at low cost and small size. A calculation circuit calculates, as a reference voltage Vr, a voltage value Vref of an A/D conversion reference power... | 04/22/2008 |
| 7333899 | Fluid flow rate sensor and method of operation A thermo-anemometer-type fluid flow rate sensor design and a method for its operation that overcome the response time limitations of prior known fluid flow rate sensors is disclosed. The fluid flow rate sensor includes a probe having a detection module adapted to ch... | 02/19/2008 |
| 7321833 | Fluid flow rate sensor A valve body defines an inlet, an outlet, a valving cavity disposed between the inlet and outlet and a valving surface between the inlet and the outlet. A valve is moveable to a position away from the valving surface for permitting flow from the inlet through the va... | 01/22/2008 |
| 7286943 | In-vehicle electronic device, thermal flowmeter and electronic circuit board Radio-frequency currents vary phases of the radio-frequency voltages appearing at both positive and negative input terminals of an operational amplifier depending on inductance and resistance of conductors forming an electronic device. If the phases of radio-frequen... | 10/23/2007 |
| 7210194 | Airflow sensor system for monitoring air inlet airflow and air outlet airflow of a vacuum cleaner An airflow sensor system for monitoring air inlet airflow and air outlet airflow of a vacuum cleaner is provided according to an embodiment of the invention. The airflow sensor system includes a vacuum cleaner air duct, a bypass tube connected to the air duct, and a... | 05/01/2007 |
| 7137298 | Thermal air flowmeter A thermal air flowmeter which improves air flow rate measurement sensitivity, reduces power consumption of a heating element and broadens the measuring range. A heating resistor is provided on insulating film in a thermal insulating area as a rectangular space on a ... | 11/21/2006 |
| 7066022 | Airspeed sensor and method for operating an airspeed sensor In an air-velocity sensor and a method for operating an air-velocity sensor, the air-velocity sensor includes a temperature sensor arranged in an air flow and sequential electronics. The sequential electronics are used to cyclically impinge upon the temperature sens... | 06/27/2006 |
| 7051418 | Method of measuring weak gas flows Firstly, a supporting frame is produced, whose opening is spanned by an auxiliary layer flush on one side. Following the production of microstructures, flat parts or membranes on the common plane defined by the auxiliary layer and the supporting frame, the auxiliary... | 05/30/2006 |
| 7040159 | Air meter An air meter is provided which enables the improvement of accuracy of internal reference voltages with few IC terminals. A band gap reference power supply circuit 6 supplies an internal reference voltage to a characteristic adjusting circuit 4 and an i... | 05/09/2006 |
| 7036368 | Heating resistor type air flow rate measuring apparatus A heating resistor type air flow rate measuring apparatus is provided with a couple of heating resistors placed at the positions where those resistors may each interfere thermally with respect to an air flow, and a couple of driving circuits for driving those heatin... | 05/02/2006 |
| 6973827 | Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring s... | 12/13/2005 |
| 6920797 | Selecting an airflow generator for a system A test apparatus includes a plurality of sensors placed proximate an airflow generator (e.g. a fan) to measure flow rates in respective sub-regions. The test apparatus also includes a controller (e.g., test software) to calculate an operating point of the airflow ge... | 07/26/2005 |
| 6905242 | Sensor temperature control in a thermal anemometer A thermal anemometer that separates sensor heating from sensor temperature measurement through a switched sampling technique. This approach demonstrates several advantages over the more typical circuitry employing a bridge, which simultaneously heats the sensor and ... | 06/14/2005 |
| 6892571 | Sensor for the measurement of flowspeeds and method for operating the same A sensor for measuring a flow speed of a fluid medium includes a housing with a carrier membrane disposed in the housing and being essentially in a form of a vane having a circumference and at least one edge region. Holding elements are arranged over a portion of th... | 05/17/2005 |
| 6854325 | Sensor chip having potential surfaces for avoiding contaminant A sensor chip having at least upstream from the sensor region, at least one potential surface that, by electrical interaction with the contaminants in the flowing medium, prevents precipitation in the sensor region. ... | 02/15/2005 |
| 6845660 | Sensor chip with additional heating element, method for preventing a sensor chip from being soiled, and use of an additional heating element on a sensor chip A sensor chip exposed to a flowing medium is provided with an additional heater situated upstream and at a definite distance from the sensor area, resulting in the impurities in the flowing medium being deposited in the area of the additional heater, and in the impu... | 01/25/2005 |
| 6691568 | Air meter An air meter is provided which enables the improvement of accuracy of internal reference voltages with few IC terminals. A band gap reference power supply circuit 6 supplies an internal reference voltage to a characteristic adjusting circuit 4 and an inte... | 02/17/2004 |
| 6628202 | Thermal dispersion mass flow rate and liquid level switch/transmitter A thermal dispersion switch/transmitter for determining flow rate and liquid level in a non-contacting apparatus. A special preparation of one or more small spots in the outside surface of the wall of the conduit, standpipe or container enables one or mor... | 09/30/2003 |
| 6575027 | Mass flow sensor interface circuit An improved mass flow sensor interface ("MFSI") circuit and method are disclosed for sensing and measuring mass flow rate of a gas and provide an output voltage proportional to the mass flow rate in a mass flow controller. The improved MFSI circuit of the... | 06/10/2003 |
| 6568263 | Liquid level detector and system A system for detecting the level of fluid in a fluid containing vessel. The system includes a device for applying energy to a selected location on the vessel. A sensor in proximity to the location detects the energy level at the location during first and ... | 05/27/2003 |
| 6411192 | Method and apparatus for sensing and measuring plural physical properties, including temperature A method and device, employing positive-temperature-coefficient material, for sensing plural properties of a fluid, such as temperature and flow rate. Can be used in a wind gauge or in a device for sensing position of mechanical elements such as valve dia... | 06/25/2002 |
| 6357293 | Air flow meter with heat generating resistor In a ratiometric output type air flow meter with a heat generating resistor, a ratiometric circuit is provided with a divider circuit which is constituted by invariable resistors and divides an external reference voltage Vref and a multiplier circuit. The... | 03/19/2002 |
| 6208254 | Thermal dispersion mass flow rate and liquid level switch/transmitter A thermal dispersion switch/transmitter for determining flow rate and liquid level in a non-contacting apparatus. A special preparation of one or more small spots in the outside surface of the wall of the conduit, standpipe or container enables one or mor... | 03/27/2001 |
| 6032526 | Heating resistor type air flow-meter of ratio-metric output type and engine control system using said heating resistor type air flow-meter A heating resistor type air flow-meter has a ratio-meter circuit comprising a proportional circuit for outputting a signal Vout proportional to an input voltage Vin a multiplying circuit for outputting a multiplied signal Vm | 03/07/2000 |
| 6019505 | Time lag approach for measuring thermal conductivity and specific heat A method and apparatus for providing a more direct approach to determine the thermal conductivity, thermal diffusivity and specific heat of a fluid of interest, independently of the amplitude of the sensor output. This is preferably accomplished by measur... | 02/01/2000 |
| 5936156 | Liquid metering A meter to measure the volumetric flow rate of a liquid, for example water, is formed with a pipe forming a liquid flow path containing a low power electrical heater. A first temperature sensor measures the temperature T of the liquid adjacent to an upstr... | 08/10/1999 |
| 5861556 | Flowmeter A plurality of flow velocity sensors are vertically installed in line at different positions in the same cross section in a gas flow passage in a pipe. Detection signals from the flow velocity sensors are inputted to a mean flow velocity computing unit wh... | 01/19/1999 |
| 5827960 | Bi-directional mass air flow sensor having mutually-heated sensor elements A low cost, bi-directional manifold air flow sensing device based on sensed temperature differential due to airflow achieves improved sensitivity and frequency response by eliminating the heater element of the conventional sensor topology, and operating t... | 10/27/1998 |
| 5824895 | Air flow meter of a heating resistor type A heating resistor type air flow meter for measuring the amount of air flow which passes through an intake pipe for an internal combustion engine. The air flow meter has a constant-temperature control circuit for detecting air flow, which has a bridge cir... | 10/20/1998 |
| 5809827 | Flow rate detector A threshold value is stored in a CPU using setting switches. When a fluid is introduced into a flow passage, it lowers the temperature of a first thermistor heated by a regulated constant-current source, increasing the output voltage of the first thermist... | 09/22/1998 |
| 5764539 | Non-invasive system and method for a fluid flow monitoring system A non-invasive system and method is provided for a fluid delivery system of the type including a fluid delivery pump delivering fluid in pulses through a fluid delivery tube. The non-invasive monitoring system and method includes a sensor which is brought... | 06/09/1998 |
| 5677484 | Device for measuring the flow in a fluid channel A device for measuring the flow of a fluid in a fluid channel, with at least one thermocouple, whose thermojunctions are arranged one behind the other in the direction of flow of the fluid and are maintained at a working temperature higher than the fluid ... | 10/14/1997 |
| 5537871 | Hot wire type air flowmeter A hot wire type air flowmeter has a drive circuit for controlling the temperature of a hot wire type resistor and for outputting indications of controlling states as electric signals, an output adjusting circuit for adjusting the electric signals output f... | 07/23/1996 |
| 5199300 | Device for controlling resistor temperature A device for controlling the temperature of a resistor used for measuring purposes is adversely affected in its measuring accuracy as the result of deposits on the resistor (8). To establish the degree of contamination and to initiate a free-burning opera... | 04/06/1993 |
| 5177696 | Method of determination of gas properties at reference conditions A method of determination of gas properties at reference conditions of temperature and pressure. This determination is needed in systems including mass flow meters, combustion control systems, gas meters and the like. The system disclosed enables the dete... | 01/05/1993 |
| 5119674 | Flowmeter A flowmeter comprising a thermocouple with hot and cold junctions and a current source for causing a termperature difference between the hot and cold junctions of the thermocouple. The thermocouple is connected to the current source through a controlled s... | 06/09/1992 |
| 5111692 | Temperature compensated liquid level and fluid flow sensor A temperature compensated, self-heating, resistance thermal detector in a sensor circuit for determining fluid level or fluid flow. A resistor in shunt with the detector provides the temperature compensation. The resistor and the thermal detector are conn... | 05/12/1992 |
