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Document |
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7395705 |
System for measuring an airflow angle at the wingtip of an aircraft
A vortex angle system includes one or more vortex angle sensors disposed on one or more wingtips of an aircraft. A summing circuit and computer compare signals from each sensor to provide a signal,...
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6829929 |
Loading probe for testing an acoustic transducer
A loading probe includes an elongated solid first body portion ( 1 ) shaped from a first material and capable of simulating the normal acoustic impedance presented to a transducer to be tested by a...
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6526821 |
Airfoil shaped flow angle probe
The present invention is a force-based instrument that measures local flow angle. The preferred embodiment of the invention has a low aspect ratio airfoil member connected to a mounting base. Using...
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5233867 |
Lever-operated dynamic fluid flow sensing system
A dynamic fluid flow measurement apparatus is intended to be connected to a relative reference member, such as a marine vessel. The apparatus preferably includes a base member, a lever mechanism...
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5186049 |
Angular momentum and banking indicator acceleration-deceleration and grade indicator system
Angular momentum and banking indicator and acceleration-deceleration and grade indicator for use on trucks, cranes, airplanes, and boats as a multipurpose sensor. A cylinder with a damping fluid...
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5117687 |
Omnidirectional aerodynamic sensor
A method and apparatus are disclosed for detecting the nature of fluid flow. Specifically, an omnidirectional aerodynamic sensor is disclosed comprising an omnidirectional aerodynamic drag force...
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5115237 |
Combination aircraft yaw/angle of attack sensor
An improved aerodynamic vane is used for sensing the angle of attack of an aircraft during yawed flight. Left and right sensors are rotatably mounted to opposite sides of the fuselage of the...
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4603579 |
Trolling speed indicator
A trolling speed indicator adapted to be mounted to the gunnel of a boat along either a vertical or horizontal surface. The indicator measures the speed of the boat during trolling so that a...
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4534307 |
Adapter for installation of marine instruments
An adapter assembly for surface mounting of marine instruments and the like through a constant diameter opening in a marine vessel surface and the like; including a cylindrical mount housing having...
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3910114 |
Dual vane flow meter
A positive displacement flow meter comprising a housing, said housing having an inlet and an outlet, a first vane rotatably mounted on a first shaft and a second vane rotatably mounted on a second...
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3878714 |
Apparatus for determining the velocity and the direction of relative motion thereof with respect to a fluid and with regard to a direction of reference, and the use of said apparatus
Apparatus for determining the velocity and direction of relative motion of an object in a fluid such as a ship in water. The apparatus includes a probe formed of a rod attached to the ship and...
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3720102 |
WATER SEALED BOAT SPEEDOMETER
A boat speedometer of the type wherein a vane extends into the water from a torsion arm and speed is determined by the deflection of the arm, wherein the arm is at least partially hollow and the...
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3681987 |
AIR ACTUATED SKI SPEEDOMETER
A ski speedometer for registering the highest speed attained by a skier during a predetermined ski run. The ski speedometer employs a tube having an air inlet and a spring pressed plate actuated by...
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3681983 |
SYSTEM FOR MEASURING FLUID FLOW
A system for measuring fluid flow, and more specifically, a speedometer/odometer system for a sailboat or the like, includes a transducer mounted to tilt at an angle by fluid flowing there around....
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3641814 |
ELECTRONIC METHOD AND APPARATUS FOR AUDIBLY DETECTING CHANGES
Device for measuring the relative change in a variety of physical phenomenon, such as acceleration, pressure, temperature, etc., by an audible signal. A transducer has a pivoted extensible rod for...
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3541854 |
DEVICE FOR SENSING THE PRODUCT OF THE DENSITY AND THE SQUARE OF THE RATE OF CIRCULATION OF A FLUID
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3524348 |
MARINE SPEED INDICATOR
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3489005 |
MARINE SPEEDOMETER
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3483506 |
VEHICLE LOCATION INDICATOR
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3482444 |
ELECTRICAL BOAT-SPEEDOMETER APPARATUS
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3468163 |
SPEEDOMETER FOR BOATS AND OTHER VEHICLES
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3380299 |
Boat speedometer
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3354714 |
Marine speedometer
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3287968 |
Boat speedometer
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3238773 |
Deflectable probe type transducer
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3226978 |
Air actuated ground speed indicator
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3190115 |
Angle of attack measuring device
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3104548 |
Speed indicators
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2985014 |
Anemometer
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2845796 |
Wave force meter
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2818730 |
Retractable aircraft instrument
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2793528 |
Automobile wind deflector with air speed indicator
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3564917 |
Title is not available
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