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| Number | Title | Issue Date |
| 7385505 | Motion detecting system for alarm device A motion detecting system is attachable to an object for enabling and disabling an alarm flow of electrical current from a power source for actuating an alarm device. The system has a back plate with a substantially flat surface and a magnet freely pivotally mounted... | 06/10/2008 |
| 7362242 | Optical encoder device for small-sized motor and method of producing the same A photosensor module is composed of a light-receiving element module accommodating a light-receiving element, and a light-emitting element module accommodating a light-emitting element, which modules are separate, paired components. One of the paired light-receiving... | 04/22/2008 |
| 6964510 | Magnetic rotary switch mechanism A novel construction for a flashlight including a multifunctional rotary switching device is provided. The body of the switch includes an array of magnetic field effect sensors arranged on a base switch component such as a printed circuit board switching substrate. ... | 11/15/2005 |
| 6772627 | Flow vector analyzer for flow bench Apparatus and methods for airflow testing, especially for air testing of gas turbine components on an airflow test bench. Various embodiments of the present invention include the use of a measurement section downstream of the component being tested. The measurement ... | 08/10/2004 |
| 6046679 | Method and indicator light for indicating the wind direction and wind velocity and the air pollution level The indicator light is constituted by a panel supporting juxtaposed and alternating neon tubes of blue, yellow, green and red color, these colors being assigned to the cardinal points north, east, south and west respectively. These tubes have voltage appl... | 04/04/2000 |
| 5589779 | Potentiometer circuit providing identifiable open wiper signals A circuit is provided for generating a voltage signal corresponding to a wiper position in a linear or circular potentiometer having an open wiper position or an open wiper angle, respectively. The voltage signal circuit includes provisions for determinin... | 12/31/1996 |
| 5265469 | Wind detecting and alerting apparatus A wind detecting and alerting apparatus includes a wind-sensing member, a support member, and an annular member, all of which are electrically-conductive. The apparatus also includes a support platform, and an electrical alarm circuit. The wind-sensing me... | 11/30/1993 |
| 4901566 | Air-flow and direction sensor with an electromagnetic damping and positioning system This invention describes an angle of attack sensor for aeronautical use fitted with an electromagnetic device to damp the movement of the rotable part of the sensor and, when required, to position the moving part for test purposes. The damper comprises: a... | 02/20/1990 |
| 4888986 | Rotational position indicator A rotational position indicator useful for example for indicating wind direction is provided by a stator having nine position sensors substantially equally spaced around the circumference of a circle and an armature mounted for rotation on an axis located... | 12/26/1989 |
| 4886007 | Servomechanism for sailboats Apparatus that maintains a sailboat sail in a position where maximum power is derived from the wind. The apparatus includes a wind vane that responds to directional changes in the wind and sends an electrical signal to a motor that adjusts sail-positionin... | 12/12/1989 |
| 4646011 | Electronic angular position transmitter with toroidal core and rotatable magnet In a contact-less electronic angular-position transmitter having a turnable magnet (5), sensor coils (11, 12) arranged at right angles to each other are provided on a toroidal core (9), common to all sensor coils, of a magnetic-field detector formed in ac... | 02/24/1987 |
| 4334430 | Device for metering the angular position of a direction indicator A device for metering the angular position of a direction indicator, such as a wind direction indicator (10) mounted rotatably about an axis. The said device comprises the reference member (18) mounted rotationally about said axis and having driving means... | 06/15/1982 |
| 4325014 | Automatic control unit for a wind-following rotor A control unit for automatically controlling the angular position of a reversible, motorized device, such as an antenna rotor, in response to a signal from an external sensor, such as a potentiometer coupled to the rotating shaft of a windvane. The unit i... | 04/13/1982 |
| 4078425 | Wind direction indicator for sailboats The invention relates to a wind direction indicator for sailboats wherein a rotatably mounted permanent magnet connected to the shaft of a weather vane is employed as a pick-up. By means of its magnetic field, it controls, in dependency upon the wind dire... | 03/14/1978 |
| 4031754 | Apparatus for weather prediction The disclosure is for apparatus which uses wind direction information from any rotary contact wind vane to generate electrical signals corresponding to forecasts of weather. The electrical signals are used to light indicator lamps on a panel located insid... | 06/28/1977 |
