Tignor
Claude W. Tignor, Greenville, TX US
Patent application number | Description | Published |
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20080210822 | Very high frequency line of sight winglet antenna - A line of sight antenna supported in an upturned terminal winglet or similar vertical member of an aircraft is disclosed. An aperture is formed in the conductive winglet or vertical member, and the antenna is supported within the aperture by a support mechanism such that the antenna is exposed to the line of sight transmissions. A non-conductive covering may also be used for the aperture. Using the cover, the antenna within the winglet can be configured so that it does not alter the appearance or aerodynamic characteristics of the aircraft. Alternatively, the antenna can be coupled to the outside of the winglet or vertical member if cosmetics are not a concern. The frequency range of the antenna can be tuned to cover desired frequency ranges. The antenna position at the winglet maintains a large physical separation from fuselage-mounted antennas thereby reducing interference. | 09-04-2008 |
Michael S. Tignor, Watertown, CT US
Patent application number | Description | Published |
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20080236048 | Door operating system - A door operator is configured to operate a door that is rotatable about an axis of rotation between an open position and a closed position. In one embodiment, the door operator comprises an output shaft, a closing assembly, and a motor. The output shaft is rotatable between a first position and a second position, and is coupled to the door such that rotation of the output shaft pivots the door about the axis of rotation and rotation of the door about the axis of rotation rotates the output shaft. The closing assembly is coupled to the output shaft to apply a torque to the output shaft, wherein the torque applied by the closing assembly rotates the output shaft such that the rotation of the output shaft by the closing assembly rotates the door toward the closed position. The motor is coupled to the output shaft. | 10-02-2008 |
20130127590 | AUTOMATIC DOOR SYSTEM WITH DOOR SYSTEM USER INTERFACE - An automatic door system includes a door controller having a plurality of door operation modes. A door driver mechanism is electrically coupled to the door controller, and operatively coupled to a door. A door system user interface is communicatively coupled to the door controller. The door system user interface has a processor unit configured to store a plurality of door operation schedules, with each door operation schedule having an execution date, an execution time, and a door operation mode of the plurality of door operation modes. The processor unit is configured to execute program instructions to: monitor a current date and time; select as an active operation schedule the door operation schedule having the execution date and the execution time that corresponds to the current date and the current time, and select at the door controller the door operation mode corresponding to that of the active operation schedule. | 05-23-2013 |
Todd S. Tignor, Charlottesville, VA US
Patent application number | Description | Published |
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20100141303 | Digitally controlled frequency generator - A digitally controlled frequency generator includes an oscillator module for generating a first clock signal having an oscillating frequency, a programmable control module operable so as to generate a control signal corresponding to a desired frequency, and a direct digital frequency synthesizer coupled to the oscillator module and the programmable control module for receiving the first clock signal and the control signal therefrom, and for generating a second clock signal having the desired frequency based on the first clock signal from the oscillator module and the control signal from the programmable control module. | 06-10-2010 |