...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8118256 | Brake shutoff valve test A system, apparatus and method of verifying operation of a vehicle fluid brake system shutoff valve is provided, wherein the shutoff valve is adapted to enable or inhibit the transmission of fluid pressure to at least one brake solenoid valve that controls operation... | 02/21/2012 |
| 7967247 | Method and device for driving an aircraft during the ground run thereof The method of the invention includes forming a difference between left and right braking commands, by converting the difference into an additional control command for rudder and for a steerable nose gear, and applying the additional control command to the rudder and... | 06/28/2011 |
| 7357357 | Aircraft mode suppression An aircraft control system operates during landing to suppress normal modes of flexing of the aircraft or modes of rigid rotation. The excitation of the modes are measured using accelerometers attached to the aircraft or strain-measuring devices attached to the land... | 04/15/2008 |
| 7341318 | Circulating fluid regulated braking device for air and land vehicles A circulating fluid regulated braking device for a vehicle includes a piston pump mounted directly on the hub of each vehicle wheel. The pumps mounted on front wheels are connected by pipes to a primary two-way valve, which, in turn, is connected by pipes to a prima... | 03/11/2008 |
| 7300020 | Systems and methods for braking aircraft, including braking intermediate main gears and differential braking Systems and methods for braking aircraft are disclosed. These systems and methods can be employed on multi-main gear aircraft to reduce the radius with which the aircraft makes low speed, pivot turns. Further systems and methods can be used to correct the braking be... | 11/27/2007 |
| 7281684 | Systems and methods for braking aircraft, including braking intermediate main gears and differential braking Systems and methods for braking aircraft are disclosed. These systems and methods can be employed on multi-main gear aircraft to reduce the radius with which the aircraft makes low speed, pivot turns. Further systems and methods can be used to correct the braking be... | 10/16/2007 |
| 7258404 | Antiskid control-combined paired/individual wheel control logic An anti-skid brake control system for a multi-wheeled vehicle includes both a paired function and an individual function. The paired function controls the wheels of the vehicle in unison. The individual function controls the wheels of the vehicle individually. A pai... | 08/21/2007 |
| 7237748 | Landing gear method and apparatus for braking and maneuvering Aircraft landing gear comprised of a wheel hub motor/generator disks stack, includes alternating rotor and stator disks mounted with respect to the wheel support and wheel. The wheel hub motor/generator can provide motive force to the wheel when electrical power is ... | 07/03/2007 |
| 7237852 | Method and device for controlling and braking an aircraft running on the ground Method and device for controlling and braking an aircraft running on the ground According to the invention, the aircraft (1) comprises two close undercarriage wheel assemblies (2D, 2G) and two distant undercarriage wheel assemblies (3 | 07/03/2007 |
| 7234667 | Modular aerospace plane This invention relates to the design of a Modular Aerospace Plane (MAP) comprising a forward fuselage section, a main wing section, a tail section and wing attachments. Various sections can be integrated to offer a variety of aircraft characteristics, performance an... | 06/26/2007 |
| 7226018 | Landing gear method and apparatus for braking and maneuvering Aircraft landing gear comprised of a wheel hub motor/generator disks stack, includes alternating rotor and stator disks mounted with respect to the wheel support and wheel. The invention can provide motive force to the wheel when electrical power is applied, e.g. pr... | 06/05/2007 |
| 7143975 | Landing arrangement for an aircraft A landing arrangement for an aircraft comprises an aircraft support assembly (22) to support the aircraft (10) when the aircraft is on the ground. The aircraft support assembly (2) is movable between a first ground engaging condition (22 | 12/05/2006 |
| 7121508 | Aircraft wheel immobilizer The present invention is adapted to immobilize a vehicle by utilizing a pair of selectively interconnected chocks that are placed fore and aft of a tire. The chocks are preferably used to secure aircraft and/or aircraft ground support equipment from unauthorized mot... | 10/17/2006 |
| 7104616 | Brake gain-based torque controller A brake gain based torque controller utilizes commanded torque, measured torque and measured pressure in order to provide brake control for a vehicle, such as an aircraft. According to one particular aspect of the invention, the brake gain-based torque controller is... | 09/12/2006 |
| 7086503 | Brake condition monitoring System and method for monitoring the applications of the brakes, e.g. of an aircraft to determine brake condition and operate a brake maintenance programme or charge a brake system user. It is desirable to have accurate information for determining the condition and ... | 08/08/2006 |
| 7035725 | Sliding integral proportional (SIP) controller for aircraft skid control The sliding, integral, and proportional controller for providing aircraft antiskid braking control includes a reference velocity subsystem, a velocity error ratio subsystem, and a main controller subsystem generating a control command output signal indicative of a c... | 04/25/2006 |
| 7014146 | System for aiding control of the deceleration of an aircraft moving over the ground The system (1) includes braking means (2) for braking the aircraft, a braking unit (3) controlling the braking means (2) on the basis of deceleration orders, a computing unit (5) for computing deceleration orders, which determines ... | 03/21/2006 |
| 7013208 | Sliding integral proportional (SIP) controller for aircraft skid control The sliding, integral, and proportional controller for providing aircraft antiskid braking control includes a reference velocity subsystem, a velocity error ratio subsystem, and a main controller subsystem generating a control command output signal indicative of a c... | 03/14/2006 |
| 6991304 | Method and device for automatic control of an aircraft deceleration in running phase The invention relates to a system to control the deceleration of an aircraft during the taxiing phase on a landing strip, the system has a detector of the current position of the aircraft on the strip, and of the current speed of the aircraft on the strip, a calcula... | 01/31/2006 |
| 6971725 | Dampened vehicle emergency brake valve A valve for controlling an emergency brake system on an aircraft. The valve has separate poppets for controlling the flow of fluid from a supply line to the brake cylinders and from the brake cylinders to a tank return line. The poppets act on each other. A dampenin... | 12/06/2005 |
| 6966614 | Architecture for a hydraulic circuit The invention relates to an architecture for a hydraulic circuit associated with actuators (100), such as actuators for airplane brakes, the architecture comprising a main hydraulic circuit (C) having hydraulic components (4, 5 101, 6) and adapted to c... | 11/22/2005 |
| 6948596 | Dual-acting band brake A band brake for retarding the motion of an associated rotatable member. The brake acts to resist motion of the rotatable member through actuation of both of its ends by a cylindrical actuating member. The band is connected with and carried by actuator so as to allo... | 09/27/2005 |
| 6938857 | Carbon brake wear for aircraft A method and means are provided for extending the life of carbon brakes on aircraft. The method comprises measuring the speed of the aircraft and the intensity of braking and comparing these to predetermined maximum values for each. If the values are both lower than... | 09/06/2005 |
| 6915880 | Shielded aircraft brake assembly An aircraft brake assembly incorporating components which are sensitive to heat and to contact with substances present in runway,.e.g., de-icer compositions and cleansing liquids. The assembly includes an external member to shield the components from the liquids. Th... | 07/12/2005 |
| 6902241 | Vehicle brake control apparatus for controlling normal wheel brakes upon detection of defective wheel brake or brakes A brake control apparatus for controlling at least three brake devices provided for braking respective at least three wheels of an automotive vehicle which includes two wheels located on respective left and right sides of the vehicle, wherein an emergency brake cont... | 06/07/2005 |
| 6896223 | Aircraft wheel immobilizer The present invention is adapted to immobilize a vehicle by utilizing a pair of selectively interconnected chocks that are placed fore and aft of a tire. The chocks are preferably used to secure aircraft from unauthorized motion in airport parking areas. ... | 05/24/2005 |
| 6851649 | Methods and systems for controlling wheel brakes on aircraft and other vehicles Methods and systems for controlling wheel brakes on aircraft and other vehicles. In one embodiment, a method for slowing a vehicle on the ground can include applying a first brake to a first wheel and a second brake to a second wheel. The method can further include ... | 02/08/2005 |
| 6752353 | Optimal control design for aircraft antiskid brake control systems The optimal control design for antiskid brake control uses a discrete Kalman filter scheme in combination with a conventional aircraft brake control system, comprising sensors for measuring a speed of a wheel and brake torque, and for providing output signals indica... | 06/22/2004 |
| 6684147 | Sliding integral proportional (SIP) controller for aircraft skid control The sliding, integral, and proportional controller for providing aircraft antiskid braking control includes a reference velocity subsystem, a velocity error ratio subsystem, and a main controller subsystem generating a control command output signal indica... | 01/27/2004 |
| 6659400 | Optimal control design for aircraft antiskid brake control systems The optimal control design for antiskid brake control uses a discrete Kalman filter scheme in combination with a conventional aircraft brake control system, comprising sensors for measuring a speed of a wheel and brake torque, and for providing output sig... | 12/09/2003 |
| 6604708 | Carbon brake wear for aircraft A method and means are provided for extending the life of carbon brakes on aircraft. The method comprises measuring the speed of the aircraft and the intensity of braking and comparing these to predetermined maximum values for each. If the values are both... | 08/12/2003 |
| 6478252 | Aircraft braking systems An aircraft braking system for a main undercarriage or undercarriages incorporates at least two brakes, which may be carbon type brakes, and a control unit for selectively disabling at least one brake during taxiing only, the control unit being arranged t... | 11/12/2002 |
| 6402259 | Electromechanical braking system with power distribution and redundancy An electromechanical braking system utilizes redundancy features to provide safe and reliable braking. The braking system is configured to operate on power provided by multiple power sources. Different modes of braking are available based on whether a fai... | 06/11/2002 |
| 6398162 | Aircraft braking systems An aircraft braking system for a main undercarriage or undercarriages incorporates at least two brakes, which may be carbon type brakes, and a control unit for selectively disabling at least one brake during taxiing only, the control unit being arranged t... | 06/04/2002 |
| 6390571 | Redundant aircraft braking system architecture A redundant brake control and anti-skid system is described for providing braking to a vehicle. The system includes a primary brake control assembly for performing brake control and anti-skid functions, and a secondary brake control assembly for performin... | 05/21/2002 |
| 6354537 | Aircraft landing gear having axle to brake plate integration An aircraft landing gear brake arrangement wherein a landing gear stub axle and brake pressure plate are integrated. Each of the integrated assemblies is attached to a support fitting which pivots on the truck axle thereby causing the torque links to be u... | 03/12/2002 |
| 6257681 | Braking system In a braking system including a plurality of independently operable hydraulic brake assemblies, a controller is provided for monitoring the hydraulic pressure at at least some of the brake assemblies and for comparing that pressure with a brake control de... | 07/10/2001 |
| 6220676 | Antiskid control of multi-wheel vehicles using coupled and decoupled Kalman filtering incorporating pitch weight transfer According to one aspect of the invention, a brake controller is provided for controlling an amount of braking force applied to a plurality of wheels of a vehicle running on a surface. Each of the plurality of wheels has a sensor for providing an output si... | 04/24/2001 |
| 6149100 | Aircraft landing gear having axle to brake plate integration An aircraft landing gear brake arrangement wherein a landing gear stub axle and brake pressure plate are integrated. Each of the integrated assemblies is attached to a support fitting which pivots on the truck axle thereby causing the torque links to be u... | 11/21/2000 |
| 6116626 | Independent front suspension A steerable independent front suspension having upper and lower wishbone control arms, each control arm pivotally mounted to a suspension frame which in turn is adapted to be mounted to a vehicle frame. The other end of the control arms are pivotally moun... | 09/12/2000 |