Alan Bruce
Alan Bruce Croxall, Ii, Wichita, KS US
Patent application number | Description | Published |
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20150090810 | THRUST REVERSER HYDRAULIC ACTUATION SYSTEM WITH SERVO SYNCHRONIZATION - A thrust reverser system and method for controlling actuation thereof. The thrust reverser system may have a control system, two thrust reverser doors actuatable between an open position and a closed position, hydraulic actuators attached to and used to actuate each of the thrust reverser doors, servo valves each communicatively coupled with one of the hydraulic actuators to control hydraulic flow to and from the hydraulic actuators, and position sensors mounted on each of the thrust reverser doors to provide signals associated with a position thereof to the control system. The control system may send command signals to the servo valves to independently adjust at least one of hydraulic flow rate, hydraulic pressure, direction, and position of the hydraulic actuators depending on an amount of offset between the signals received from the position sensors. | 04-02-2015 |
Alan Bruce Touchberry, Saint Louis Park, MN US
Patent application number | Description | Published |
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20100111750 | METHODS FOR INTRODUCTION OF A REACTIVE MATERIAL INTO A VACUUM CHAMBER - Methods for the introduction of a reactive material into a vacuum chamber while minimizing or eliminating the simultaneous introduction of contaminating materials or substances. As a result, contaminating materials and substances that can interfere with any measurements or other processes that occur in the vacuum chamber are minimized or eliminated. | 05-06-2010 |
Alan Bruce Touchberry, St. Louis Park, MN US
Patent application number | Description | Published |
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20120039689 | METHODS FOR INTRODUCTION OF A REACTIVE MATERIAL INTO A VACUUM CHAMBER - A vacuum chamber assembly includes a vacuum chamber containing a reactive material, an inlet fill tube fixedly attached to the vacuum chamber, and an outlet fill tube fixedly attached to the vacuum chamber. The inlet fill tube has a first vacuum tight seal and the outlet fill tube has a second vacuum tight seal. | 02-16-2012 |
20130083329 | RATE SENSITIVE BLANKING OF A PATH LENGTH CONTROL CIRCUIT IN A GYROSCOPE - A method and system for rate sensitive blanking in a path length control circuit of a gyroscope is provided. The method comprises determining an angular rate of the gyroscope, detecting a zero rate of the gyroscope where one or more single beam signals occur, and determining one or more blanker positions based on the zero rate. A blanker pulse is generated at the blanker positions such that the path length control circuit suspends operation when the one or more single beam signals occur. | 04-04-2013 |
20130085699 | SYSTEMS AND METHODS FOR THERMAL GRADIENT COMPENSATION FOR RING LASER GYROSCOPES - Systems and methods for thermal gradient compensation for ring laser gyroscopes are provided. In one embodiment, a method for producing bias compensated angular rate measurements from a ring laser gyroscope comprises: sampling an angle measurement output from a laser block sensor to obtain an angular rate measurement; obtaining an laser block temperature measurement (T | 04-04-2013 |