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| Number | Title | Issue Date |
| 7343261 | Underwater sensor transmitter probe An electronic apparatus for measuring water speed and water temperature then periodically transmitting said data during controlled depth fishing wherein an underwater probe is secured to and insulated conductive downrigger cable and gathers and relays data though th... | 03/11/2008 |
| 7284420 | Air data system and method for rotary aircraft An air data system and method for a rotary aircraft is described. The air data system includes a plurality of flush ports connected via tubing to a plurality of air flow sensors that can measure air flow speeds as low as approximately 0.02 knots. The flush ports are... | 10/23/2007 |
| 7249486 | Method for monitoring a sensor The present invention concerns a method of monitoring a sensor for sensing the flow speed of a medium. The invention further concerns an apparatus for carrying out that method. In order to be able to monitor the sensor, without providing redundant sensors, the flow ... | 07/31/2007 |
| 7174782 | Total air temperature probe providing a secondary sensor measurement chamber A total air temperature sensor probe samples the air stream surrounding an aircraft in flight, and includes a duct carrying a fluid flow a portion of which is diverted to a primary chamber mounting a total air temperature sensor. A secondary chamber has a secondary ... | 02/13/2007 |
| 7175344 | Device for the protection of a probe joined to an external wall of an aircraft The invention relates to a device for the protection of a probe joined to a wall of an aircraft. Detachable means for fastening to the wall of the protection device are sensitive to a modification of a temperature of the probe. For example, the fastening means are m... | 02/13/2007 |
| 7150560 | Device and method for determining total temperature for aircraft The invention relates to a device for determining total temperature for aircraft. This device is particularly useful in a probe, called a multifunction probe, for measuring several aerodynamic parameters such as, for example, the total pressure (Pt), the static pres... | 12/19/2006 |
| 7140320 | Device for holding the log transmitter of a boat speedometer A device for holding a boat speedometer log transmitter in a boat hull has a sleeve body fixed in a perforation in the hull with a longitudinal center opening for removably inserting and retaining the log transmitter in a watertight manner. A head part is coupled to... | 11/28/2006 |
| 7127335 | Low airspeed assist algorithm for air data computer applications A method of estimating the airspeed of an aircraft during low airspeed conditions includes measuring a negative impact pressure using a pitot-static probe on the aircraft. Then, the method includes estimating a non-zero airspeed of the aircraft as a function of the ... | 10/24/2006 |
| 7055383 | Gear position detection system for a transmission A gear position detecting system includes structure which facilitates mounting of the system, and minimizes direct contact of other objects with the system. The outer circumferential surface of a shift drum, turned by operation of a change pedal, is provided with le... | 06/06/2006 |
| 6955082 | Redundant system for the indication of heading and attitude in an aircraft A method for synthetically calculating redundant attitude and redundant heading for an aircraft using data existing in the aircraft, including angular rates p, q, r around x-, y- and z-coordinates of an aircraft-fixed (body frame) coordinate system, air data informa... | 10/18/2005 |
| 6439048 | In-flight calibration of air data systems using a nose-mask sensor A nose cone overlay for determining air data quantities. The overlay is adapted for removable mounting to a conventional radome or nose cone of a typical aircraft. The overlay includes transducers for measuring data with respect to pressure from which qua... | 08/27/2002 |
| 6308581 | Differential pressure flow sensor The fluid flow meter of the present invention includes a ramp inclined to the surface of a vessel so as to form a recess in the surface. A dynamic port surface extends from the lower end of the ramp to the surface of the vessel. A dynamic port is formed i... | 10/30/2001 |
| 6278913 | Automated flight data management system A data processing system for automating the process of managing flight data and generating reports based on that data. The system accesses flight data transmitted on an airborne databus, where the data represents sensor readings indicative of various flig... | 08/21/2001 |
| 5838635 | Thin speed transducer sensor A speed sensor for a ship, more particularly, a thin speed sensor which can be mounted in the hull of the ship and remain flush with the outer surface of the hull. The transducer assembly for the speed sensor is composed of two thin piezoelectric transduc... | 11/17/1998 |
| 5747700 | Portable electronic flow meter A flow meter for use in scuba diving is disclosed. The device has a coil or, alternatively, two coils separated by a predetermined distance and sensors for measuring induced electromotive force. The device is provided with a switch to enable it to be acti... | 05/05/1998 |
| 5648604 | Method and system for determining anemobaroclinometric parameters on board an aircraft The invention is a method for determining anemobaroclinometric parameters on board an aircraft. The air speed vector (Vp), the static pressure (Ps), and the impact temperature (Ti) are measured, and the other parameters are calculated on the basis of the ... | 07/15/1997 |
| 5585557 | Air data system for measuring fluid flow direction and velocity The invention is a system for determining the physical characteristics of an incident fluid flow stream over a surface of a vehicle relative to an axis thereof, the apparatus. In detail, the invention includes at least one first pressure sensor mounted on... | 12/17/1996 |
| 5581515 | Thin speed transducer sensor A speed sensor for a ship, more particularly, a thin speed sensor which can be mounted in the hull of the ship and remain flush with the outer surface of the hull. The transducer assembly for the speed sensor is composed of two thin piezoelectric transduc... | 12/03/1996 |
| 5544076 | Marine speedometer A marine speedometer system is disclosed which utilizes a short pitot tube or air column. The speedometer system includes an inlet having a short air column, a transducer, a control circuit, and a display. The electric signal from the transducer is repres... | 08/06/1996 |
| 5357794 | Faraday effect small boat speed transducer and waterproof connection for same An improved speed transducer is disclosed. The present invention provides an alternating current coil speed transducer which utilizes the Faraday Effect to generate a voltage. The present invention discloses an improved amplifying circuit that amplifies t... | 10/25/1994 |
| 5299455 | Method and instrumentation system for measuring airspeed and flow angle An instrumentation system for measuring airspeed and angle-of-attack (AOA) is provided. The system includes a sensor assembly, a constant voltage anemometer, a microprocessor assembly with software, and an output device suitable for powering conventional ... | 04/05/1994 |
| 5063777 | Method and device for determining the speed of a helicopter with respect to the air A method and device are disclosed for determining the airspeed of a helicoper, in which, for a plurality of flight configurations of a calibration flight, magnitudes for estimating the airspeed and the collective PO and cyclic pitches PX | 11/12/1991 |
| 5007286 | Solid-state transducer based dynamic fluid flow sensing system A dynamic fluid flow sensing system measures relative fluid velocity with respect to a reference member. The system includes a sensor housing supported from the reference member such that the sensor housing is exposed to fluid flowing past the reference m... | 04/16/1991 |
| 5003820 | Electronic speedometer for snow skis The electronic speedometer of this invention accurately calculates and digitally displays a skier's instantaneous speed. The device accomplishes this task by employing the "hot wire" principle using a thermistor and a thermocouple which are exposed to air... | 04/02/1991 |
| 4896534 | Float-type flowmeter A float-type flowmeter has a flow detecting surface, such as a fin, for pointing its inlet opening, which receives a portion of the flow to be measured, into the flow. Preferably the flowmeter, its inlet opening, and its fin, are all mounted to rotate as ... | 01/30/1990 |
| 4848146 | Underwater electromagnetic tubulent velocimeter A velocimeter, comprising a controlled magnetic field source and electric field sensors, the device being flush mounted in a vessel hull. The magnetic source comprises a drive coil which may be energized with either a DC current or an AC current at varous... | 07/18/1989 |
| 4794793 | Method and apparatus for measuring the airspeed of a helicopter at low speed A helicopter is provided with a lift rotor (Ros), a tail rotor (Rac), first control means for the longitudinal (Pcx) and lateral (Pcy) cyclic pitch of the lift rotor and second control means for the pitch (Pac) of the tail rotor. The parameters such as th... | 01/03/1989 |
| 4774837 | Transducer assembly for a speed measurement device A transducer assembly for a speed measurement device for measuring the speed of a marine vehicle through the water is disclosed. The device comprises a transmitter circuit and a receiver circuit connected to two transducers which are positioned substantia... | 10/04/1988 |
| 4766767 | Method for determining the horizontal airspeed of helicopters in higher speed ranges A method for determining the horizontal airspeed of a helicopter in the high speed (ve >20 m/s) range. Pitch angle and the longitudinal control signals are recorded by sensors such as an inertial navigation system and a potentiometer connected ... | 08/30/1988 |
| 4702106 | Method for determining the horizontal airspeed of helicopters in low speed ranges A method is disclosed for determining the horizontal airspeed of helicopters in low speed ranges. At least three control functions, θo,i (collective pitch), θs,i (longitudinal control) and θc,i (lateral control) are mea... | 10/27/1987 |
| 4685093 | Speed measurement device A speed measurement device for measuring the speed of a ship through the water is disclosed. The device comprises a transmitter circuit and a receiver circuit connected to two transducers T1, T2 which are based substantially in the d... | 08/04/1987 |
| 4653319 | Speed indicating means A Faraday transducer for a marine speed indicator is sealed in a cylindrical housing so that it can be mounted in a boat hull with its base flush with the hull. A horseshoe magnet sealed within the housing has its poles located against the base surface an... | 03/31/1987 |
| 4576476 | Method and system for accurately measuring speed of a ship relative to a body of water A method and system for measuring relative speed of a ship through a body of water with improved accuracy and simplicity. It employs a free floating buoy and a pair of tracking scopes. The buoy is launched and tracked by the scopes with electronic circuit... | 03/18/1986 |
| 4570492 | Electrochemical flowmeter A device for measuring the velocity of flow of a liquid comprises electrodes over which the liquid flows. A chemical emitting electrode is mounted so as to contact the liquid at a first point and is supplied with periodic input pulses by a current pulse g... | 02/18/1986 |
| 4524615 | Method and system for measuring the speed of a ship A single scope method or system for accurate ship speed measurement relative to the water through which it is propelled. There is a free floating buoy beside the ship, and a tracking scope is trained on the buoy. At the same time the height above the wate... | 06/25/1985 |
| 4472966 | Marine speed log A marine speed log for providing an indication of the relative velocity of a vessel through water and an indication of the forward or reverse direction of travel. An output indication of total distance travelled can also be provided. The speed log is oper... | 09/25/1984 |
| 4409827 | Combined marine instrument and display therefor A combined knotmeter, distance/log meter and depth meter including a meter housing, a dial face having indicia symmetrically centered thereabout, an analog speed indicator having a pointer for cooperating with the indicia; upper and lower openings in the ... | 10/18/1983 |
| 4261210 | Stacked wafer helical flowmeter An electrical flowmeter having signal electrodes laterally spaced along a line perpendicular to fluid flow and sensitive to a voltage field set up in the fluid by a magnetic field is provided with a plurality of planar helically coiled conductive windings... | 04/14/1981 |
| 4170133 | Planar helical flowmeter An electrical flowmeter having signal electrodes laterally spaced along a line perpendicular to fluid flow and sensitive to a voltage field set up in the fluid by a magnetic field is provided with helically coiled conductive windings disposed in a laminar... | 10/09/1979 |
| 4143548 | Measuring the speed of an aircraft A continuous wave ultrasonic wave transmitter transmits modulated waves in two opposite directions being intercepted by a forward receiver and an aft receiver. The received signals are demodulated and the relative phase is used to obtain a speed reading. ... | 03/13/1979 |
