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1. 发明授权

US09976360B2 System and method for damping vibration in a drill string using a magnetorheological damper 有权
公开(公告)号：US09976360B2
公开(公告)日：2018-05-22
申请号：US13228376
申请日：2011-09-08
申请人： Mark Ellsworth Wassell , Daniel E. Burgess , Jason R. Barbely , Fred Lamar Thompson
发明人： Mark Ellsworth Wassell , Daniel E. Burgess , Jason R. Barbely , Fred Lamar Thompson
IPC分类号： E21B7/00 , E21B17/07 , E21B44/00
CPC分类号： E21B17/07 , E21B17/073 , E21B44/005
摘要： A system for damping vibration in a drill string can include a magnetorheological fluid valve assembly having a supply of a magnetorheological fluid. A remanent magnetic field is induced in the valve during operation that can be used to provide the magnetic field for operating the valve so as to eliminate the need to energize the coils except temporarily when changing the amount of damping required. The current to be supplied to the coil for inducing a desired magnetic field in the valve is determined based on the limiting hysteresis curve of the valve and the history of the magnetization of the value using a binary search methodology. The history of the magnetization of the valve is expressed as a series of sets of current and it resulting magnetization at which the current experienced a reversal compared to prior values of the current.

2. 发明申请

US20120085581A1 SYSTEM AND METHOD FOR DAMPING VIBRATION IN A DRILL STRING USING A MAGNETORHEOLOGICAL DAMPER 有权
标题翻译：使用磁流变阻尼器阻止钻孔中振动的系统和方法
公开(公告)号：US20120085581A1
公开(公告)日：2012-04-12
申请号：US13228376
申请日：2011-09-08
申请人： Mark Ellsworth Wassell , Daniel E. Burgess , Jason R. Barbely , Fred Lamar Thompson
发明人： Mark Ellsworth Wassell , Daniel E. Burgess , Jason R. Barbely , Fred Lamar Thompson
IPC分类号： E21B7/00 , E21B41/00
CPC分类号： E21B17/07 , E21B17/073 , E21B44/005
摘要： A system for damping vibration in a drill string can include a magnetorheological fluid valve assembly having a supply of a magnetorheological fluid. A remanent magnetic field is induced in the valve during operation that can be used to provide the magnetic field for operating the valve so as to eliminate the need to energize the coils except temporarily when changing the amount of damping required The current to be supplied to the coil for inducing a desired magnetic field in the valve is determined based on the limiting hysteresis curve of the valve and the history of the magnetization of the value using a binary search methodology. The history of the magnetization of the valve is expressed as a series of sets of current and it resulting magnetization at which the current experienced a reversal compared to prior values of the current.
摘要翻译：一种用于阻尼钻柱中的振动的系统可以包括具有磁流变流体供应的磁流变流体阀组件。在操作期间在阀中感应到残留的磁场，其可以用于提供用于操作阀的磁场，以便在改变所需阻尼量的量时不需要临时地激励线圈。要供应到的电流基于阀的极限滞后曲线和使用二元搜索方法的值的磁化历史来确定用于在阀中引起期望磁场的线圈。阀的磁化历史表示为一系列电流，并且与电流的先前值相比，电流经历了反转的磁化。

3. 发明授权

US07007607B1 Missile system for breaching reinforced concrete barriers utilizing hinged explosively formed projectile warheads 失效
标题翻译：使用铰接爆炸形弹丸弹头破坏钢筋混凝土障碍的导弹系统
公开(公告)号：US07007607B1
公开(公告)日：2006-03-07
申请号：US10709120
申请日：2004-04-14
申请人： Richard Fong , William Ng , LaMar Thompson
发明人： Richard Fong , William Ng , LaMar Thompson
IPC分类号： F42B12/06
CPC分类号： F42B12/10 , F42B12/105 , F42B12/12 , F42B12/60
摘要： A hinged explosively formed projectile warhead system eliminates exposure of soldiers to harm in wall breaching operations by providing a lethal mechanism that can be deployed at safe distances, simultaneously breaching a man-sized hole and removing one or more rows of rebar in reinforced concrete structures or barriers. The warhead system employs both a missile system and explosively formed projectile warhead technology delivered to the target from a tube launched platform. A set of warhead arms is attached to the aft end of a missile body by means of a set of hinges. The warhead arms are initially folded against the missile body. After launch of the warhead system, the warhead arms fold away from the missile body. The angle at which the warhead arms are folded from the missile body determines the area of a hole breached by the warhead system in a reinforced concrete target.
摘要翻译：一个铰接的爆炸形成的弹头弹头系统通过提供可以安全距离部署的致命机制，同时破坏一个人孔并在钢筋混凝土结构中移除一排或多排钢筋，从而消除了士兵对墙体破坏作业的伤害，障碍弹头系统采用导弹系统和爆炸成型的射弹弹头技术，从管发射平台传送到目标。一套弹头武器通过一组铰链连接在导弹体的后端。弹头武器最初被折叠在导弹体上。弹头系统发射后，弹头武器从导弹体折开。弹头臂从导弹体折叠的角度决定了钢筋混凝土目标中弹头系统所破坏的孔的面积。

4. 发明授权

US06868791B1 Single stage kinetic energy warhead utilizing a barrier-breaching projectile followed by a target-defeating explosively formed projectile 失效
标题翻译：单级动能弹头采用防弹突击弹，随后是一个目标消失的爆炸形成的射弹
公开(公告)号：US06868791B1
公开(公告)日：2005-03-22
申请号：US10709144
申请日：2004-04-15
申请人： LaMar Thompson , William Ng , Richard Fong
发明人： LaMar Thompson , William Ng , Richard Fong
IPC分类号： F42B1/02 , F42B12/10 , F42B12/16 , F42B30/00
CPC分类号： F42B12/16 , F42B1/02 , F42B12/10
摘要： A single stage kinetic energy warhead using multiple explosively formed projectile (EFP) liners in a stacked configuration is capable of breaching intermediate barriers and defeating a primary target. The main explosive charge is detonated and the subsequent shockwave causes the front liner to be shaped to breach an intermediate barrier. The main liner is formed into a more compact rod-shaped projectile designed to defeat the main target. The weight and volume of the stacked liner configuration of the present system is significantly lower than the weight and volume of current systems. The present system requires a single firing explosive train eliminating developmental cost and complex fusing. The present system utilizes explosive detonation, simplifying the delivery of a projectile and eliminating the need for a missile delivery system. The size and simplicity of the present system allows for portability and use by an individual.
摘要翻译：使用多个爆炸形成的弹丸（EFP）衬垫在堆叠配置中的单级动能弹头能够破坏中间障碍物并击败主要目标。主要的爆炸装置被引爆，随后的冲击波使得前衬板成形以破坏中间的屏障。主衬里形成一个更紧凑的棒状射弹，旨在击败主要目标。本系统的层叠衬垫配置的重量和体积显着低于当前系统的重量和体积。目前的系统需要一个单一的点火爆炸火车，消除发展成本和复杂的熔断。本系统利用爆炸性爆炸，简化射弹的运送，并消除对导弹输送系统的需要。本系统的尺寸和简单性允许个人的便携性和使用性。

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