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1. 发明授权

US06362933B1 Piezoelectric head loading and unloading device for rigid disc drives 失效
标题翻译：用于硬盘驱动器的压电头加载和卸载装置
公开(公告)号：US06362933B1
公开(公告)日：2002-03-26
申请号：US08793474
申请日：1997-02-24
申请人： Joseph M. Sampietro , Khosrow Mohajerani , Anoush M. Fard , Richard G. Krum , Jeffrey G. Barina , Muhammad A. Hawwa
发明人： Joseph M. Sampietro , Khosrow Mohajerani , Anoush M. Fard , Richard G. Krum , Jeffrey G. Barina , Muhammad A. Hawwa
IPC分类号： G11B554
CPC分类号： G11B5/6005 , G11B5/54 , G11B21/12 , G11B21/21
摘要： A system for loading a transducing head (22) to a flying elevation proximate a rotating surface of a disc (16) is disclosed. The system includes a piezoelectric device (40) that is selectively expanded and contracted to control a height of the head (22) on a flexure spring (14) from the surface of the disc (16). The system preferably includes control circuitry (50) for generating electrical control signals to manage the expansion and contraction of the piezoelectric device (40) according to operating characteristics of the disc (16).
摘要翻译：公开了一种用于将传感头（22）加载到靠近盘（16）的旋转表面的飞行高度的系统。该系统包括压电装置（40），其被选择性地膨胀和收缩以控制来自盘（16）的表面的挠曲弹簧（14）上的头部（22）的高度。该系统优选地包括用于根据盘（16）的操作特性产生电控信号以控制压电装置（40）的膨胀和收缩的控制电路（50）。

2. 发明授权

US6052251A Actuator arm integrated piezoelectric microactuator 失效
标题翻译：执行器臂集成压电微致动器
公开(公告)号：US6052251A
公开(公告)日：2000-04-18
申请号：US836292
申请日：1997-05-12
申请人： Khosrow Mohajerani , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Muhammad A. Hawwa , LeRoy A. Volz , Tien Q. Le , Daniel R. Vigil
发明人： Khosrow Mohajerani , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Muhammad A. Hawwa , LeRoy A. Volz , Tien Q. Le , Daniel R. Vigil
IPC分类号： G11B5/54 , G11B5/55 , G11B21/08 , G11B21/24
CPC分类号： G11B5/54 , G11B21/085 , G11B21/24 , G11B5/4873 , G11B5/5552 , Y10T29/49025
摘要： A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space it the actuator arm.
摘要翻译： PCT No.PCT / US97 / 07892 Sec。 371日期：1998年3月19日 102（e）1998年3月19日PCT PCT 1997年5月12日PCT公布。公开号WO97 / 32044 日期1997年9月4日用于将转换头定位在可旋转盘的选定轨道上的盘驱动装置中的系统包括可围绕轴线旋转的致动器臂，连接到致动器臂的头悬挂机构和承载转头并由头悬挂机构支撑。低分辨率马达使致动器臂围绕轴线移动，以使头部在盘的轨道之间进行粗略移动。压电元件嵌入在致动器臂中以扭曲臂以实现头部的精细定位。控制电路将电信号分配到低分辨率电动机和压电元件以选择性地控制其运动。通过从致动器臂移除预定量的材料并将压电元件接合在致动臂的所得空间中，将压电元件嵌入致动器臂中。

3. 发明授权

US6157116A Active noise cancellation in disc drives 失效
标题翻译：磁盘驱动器中的主动噪声消除
公开(公告)号：US6157116A
公开(公告)日：2000-12-05
申请号：US14649
申请日：1998-01-28
申请人： Joseph M. Sampietro , Muhammad A. Hawwa , Khosrow Mohajerani , Anoush M. Fard , Jeffrey G. Barina
发明人： Joseph M. Sampietro , Muhammad A. Hawwa , Khosrow Mohajerani , Anoush M. Fard , Jeffrey G. Barina
IPC分类号： G10K11/178 , G11B33/08 , H01L41/04
CPC分类号： G10K11/178 , G11B33/08 , G10K2210/10
摘要： Noise effects in a disc drive having a disc on a rotating spindle in a housing are reduced by inducing vibrations in the housing of the disc drive that at least partially cancel a characteristic acoustic noise signal of the drive.
摘要翻译：通过在磁盘驱动器的壳体中引起振动来至少部分地消除驱动器的特征声学噪声信号来减小具有在壳体中的旋转主轴上的盘的盘驱动器中的噪声效应。

4. 发明授权

US6108175A Bimorph piezoelectric microactuator head and flexure assembly 失效
标题翻译：双压电晶体微致动器头部和挠曲组件
公开(公告)号：US6108175A
公开(公告)日：2000-08-22
申请号：US836265
申请日：1997-05-01
申请人： Muhammad A. Hawwa , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Khosrow Mohajerani
发明人： Muhammad A. Hawwa , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Khosrow Mohajerani
IPC分类号： G11B5/58 , G11B5/48 , G11B5/55 , G11B5/596 , G11B5/60 , G11B21/10 , G11B21/21
CPC分类号： G11B5/6005 , G11B5/4813 , G11B5/5552 , G11B5/596 , G11B5/59605
摘要： A head flexure assembly for positioning a transducing head over a selected track of a rotatable disc in a disc drive system having an actulator arm and head suspension includes a bimorph piezoelectric microactuator having first and second ends. The first end of the microactuator is attached to the actuator arm, and a flexure is attached to the second end of the microactuator. A slider carrying the transducing head is attached to the flexure.
摘要翻译： PCT No.PCT / US97 / 07233 Sec。 371日期1997年5月1日 102（e）日期1997年5月1日PCT提交1997年5月1日PCT公布。第WO98 / 27547号公报日期1998年6月25日在具有动作器臂和头悬架的盘驱动系统中，用于将转换头定位在可旋转盘的选定轨道上的头部挠曲组件包括具有第一端和第二端的双压电晶片压电微致动器。微致动器的第一端附接到致动器臂，并且挠曲件附接到微致动器的第二端。携带转换头的滑块附接到挠曲件。

5. 发明授权

US06298545B1 Method of making an actuator arm integrated piezoelectric microactuator 失效
标题翻译：制动执行器臂集成压电微致动器的方法
公开(公告)号：US06298545B1
公开(公告)日：2001-10-09
申请号：US09459140
申请日：1999-12-10
申请人： Khosrow Mohajerani , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Muhammad A. Hawwa , LeRoy A. Volz , Tien Q. Le , Daniel R. Vigil
发明人： Khosrow Mohajerani , Joseph M. Sampietro , Anoush M. Fard , Jeffrey G. Barina , Muhammad A. Hawwa , LeRoy A. Volz , Tien Q. Le , Daniel R. Vigil
IPC分类号： G11B542
CPC分类号： G11B5/54 , G11B5/4873 , G11B5/5552 , G11B21/085 , G11B21/24 , Y10T29/49025
摘要： A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space in the actuator arm.
摘要翻译：用于将转换头定位在可旋转盘的选定轨道上的盘驱动装置中的系统包括可围绕轴旋转的致动器臂，连接到致动器臂的头悬挂机构，以及承载换能头的滑块通过头悬挂机构。低分辨率马达使致动器臂围绕轴线移动，以使头部在盘的轨道之间进行粗略移动。压电元件嵌入在致动器臂中以扭曲臂以实现头部的精细定位。控制电路将电信号分配到低分辨率电动机和压电元件以选择性地控制其运动。通过从致动器臂中移除预定量的材料并将压电元件接合在致动器臂中的所得空间中，将压电元件嵌入致动器臂中。

6. 发明授权

US6025975A E-block head stack microactuator assembly 失效
标题翻译：电子块头组件微型制动器总成
公开(公告)号：US6025975A
公开(公告)日：2000-02-15
申请号：US817863
申请日：1997-05-01
申请人： Anoush M. Fard , Khosrow Mohajerani , Joseph M. Sampietro , Jeffrey G. Barina , Muhammad A. Hawwa
发明人： Anoush M. Fard , Khosrow Mohajerani , Joseph M. Sampietro , Jeffrey G. Barina , Muhammad A. Hawwa
IPC分类号： G11B5/596 , G11B5/55 , G11B21/08 , G11B21/10 , G11B5/56
CPC分类号： G11B5/5552 , G11B21/08 , G11B21/106 , G11B5/4873
摘要： A system for positioning a transducing head of a disc drive over a selected track (42) of a rotatable disc (40) includes an actuator assembly (20,50) having an E-block body (25) including a cavity (37), at least one actuator arm (30) extending from the E-block body (25), a head suspension mechanism (34,36,38) including the transducing head connected to an end of the actuator arm (30), and a pivot cartridge (26) in the cavity (37) in the E-block body (25). The E-block body (25) is attached to the pivot cartridge (26) and forms a hinge point (39) between the E-block body (25) and the pivot cartridge (26). A low resolution motor (22) rotates the actuator assembly (20,50) about an axis (24) to effect coarse positioning of the head with respect to the selected track (42) of the rotatable disc (40). A piezoelectric element (27,52) in the E-block body (25) is selectively expanded and contracted to distort the E-block body (25) around the hinge point (39) to effect fine positioning of the head with respect to the selected track (42) of the rotatable disc (40).
摘要翻译： PCT No.PCT / US97 / 07352 Sec。 371日期1997年5月1日 102（e）日期1997年5月1日PCT提交1997年5月1日PCT公布。公开号WO98 / 27546 日期1998年6月25日用于将盘驱动器的换能头定位在可旋转盘（40）的选定轨道（42）上的系统包括具有E形块体（25）的致动器组件（20,50）空腔（37），从E形块体（25）延伸的至少一个致动器臂（30），包括连接到致动器臂（30）的端部的换能头的头悬挂机构（34,36,38）以及位于E形块体（25）中的空腔（37）中的枢轴筒（26）。 E块体（25）连接到枢轴筒（26）上，并在E块体（25）和枢轴筒（26）之间形成铰链点（39）。低分辨率马达（22）围绕轴线（24）旋转致动器组件（20,50），以实现头部相对于可旋转盘（40）的选定轨道（42）的粗略定位。 E块体（25）中的压电元件（27,52）被选择性地膨胀和收缩，以使铰链点（39）周围的E形块体（25）变形，从而使头部相对于所述可旋转盘（40）的所选轨道（42）。

7. 发明授权

US09188502B2 Pipeline leak detector 有权
标题翻译：管道检漏仪
公开(公告)号：US09188502B2
公开(公告)日：2015-11-17
申请号：US13556125
申请日：2012-07-23
申请人： Muhammad A. Hawwa , Hussain M. Al-Qahtani
发明人： Muhammad A. Hawwa , Hussain M. Al-Qahtani
IPC分类号： G01M3/28
CPC分类号： G01M3/2823
摘要： The pipeline leak detector travels through a pipeline passively due to the flow of liquid through the pipeline. The device includes leading and trailing rings shaped to produce hydrodynamic resistance in order for the device to be carried through the pipeline. Wheels are provided about each ring, with at least one wheel having an odometer to measure distance traveled through the pipe. The rings are joined by a plurality of axially oriented connecting rods. A plurality of sensing elements extend between the rings. Each sensing element has a thin laminate of a piezoelectric film sandwiched between two electrically conductive layers, with an electrically insulating coating on the outside of each conductive layer. One of the rings includes microelectronic circuitry for data acquisition and storage.
摘要翻译：管道泄漏检测器由于液体流过管道而被动地穿过管道。该装置包括成形为产生流体动力阻力的引导环和尾环，以使装置通过管道输送。围绕每个环设置轮子，其中至少一个轮具有里程表，以测量穿过管道的距离。环通过多个轴向定向的连接杆连接。多个感测元件在环之间延伸。每个感测元件具有夹在两个导电层之间的压电薄膜的薄层压体，在每个导电层的外侧具有电绝缘涂层。其中一个环包括用于数据采集和存储的微电子电路。

8. 发明申请

US20120273078A1 ROBOTIC SYSTEM FOR PIPELINE REHABILITATION 有权
标题翻译：用于管道康复的机器人系统
公开(公告)号：US20120273078A1
公开(公告)日：2012-11-01
申请号：US13409207
申请日：2012-03-01
申请人： Muhammad A. Hawwa , Kamal Youcef-Toumi
发明人： Muhammad A. Hawwa , Kamal Youcef-Toumi
IPC分类号： F16L55/16
CPC分类号： F16L55/163
摘要： System for pipeline rehabilitation. The system includes repairing a leak in a pipe using a pair of substantially semi-cylindrical parts connected through a compliant joint. When the parts are compressed, the semi-cylindrical parts form a cylinder whose outside diameter is less than the inside diameter of a pipe with a defect thereby allowing the cylinder to be inserted into the pipe at a location of a leak. Once in place, the parts engage the inside surface of the pipe when the compression is released thereby to seal the leak.
摘要翻译：管道修复系统。该系统包括使用通过柔性接头连接的一对基本上半圆柱形部件修复管道中的泄漏。当部件被压缩时，半圆柱形部件形成一个圆筒，其外径小于具有缺陷的管的内径，从而允许气缸在泄漏的位置插入到管中。一旦就位，当压缩被释放时，部件接合管的内表面，从而密封泄漏。

9. 发明申请

US20090007481A1 System for delivery of insecticide 失效
标题翻译：杀虫剂运送系统
公开(公告)号：US20090007481A1
公开(公告)日：2009-01-08
申请号：US11822383
申请日：2007-07-05
申请人： Faleh A. Al-Sulaiman , Muhammad A. Hawwa
发明人： Faleh A. Al-Sulaiman , Muhammad A. Hawwa
IPC分类号： A01M1/20
CPC分类号： A01M1/20
摘要： The system for delivery of insecticide provides a portable enclosure for delivering insecticide to an infested tree trunk. The system includes an annular shell disposed around with the trunk of the tree that defines an annular tank. An annular base supports the wall(s) of the annular shell and has a liquid impermeable membrane attached thereto that can be wrapped around the base of the tree trunk to prevent pesticide seepage into the ground. A pump delivers insecticide into the annular tank at an upper end of the tank. A drain hose attached to the base of the tank returns insecticide to the pump for recirculation. The pump is actuated in pulsating mode to agitate insecticide in the tank, causing waves of sufficient pressure to induce the insecticide to penetrate deeply through any bores in the trunk to kill both adult insects and larvae.
摘要翻译：用于提供杀虫剂的系统提供了将杀虫剂递送到感染树干的便携式外壳。该系统包括围绕树的树干围绕环形壳体，环形壳体限定环形罐体。环形底座支撑环形壳体的壁，并且具有附接到其上的液体不可渗透膜，其可以缠绕在树干的基部周围以防止农药渗入地面。泵在罐的上端将杀虫剂输送到环形罐中。连接到罐底部的排水软管将杀虫剂送回泵进行再循环。泵以脉动模式启动，以搅拌罐中的杀虫剂，引起足够的压力波，以诱使杀虫剂深入穿过树干中的任何孔以杀死成虫和幼虫。

10. 发明授权

US06807030B1 Enclosed piezoelectric microactuators coupled between head and suspension 失效
标题翻译：封闭的压电微型致动器耦合在头和悬架之间
公开(公告)号：US06807030B1
公开(公告)日：2004-10-19
申请号：US10024115
申请日：2001-12-18
申请人： Muhammad A. Hawwa , Edmund B. Fanslau, Jr.
发明人： Muhammad A. Hawwa , Edmund B. Fanslau, Jr.
IPC分类号： G11B2110
CPC分类号： G11B5/4826 , G11B5/5552
摘要： An actuator is coupled between a head and flexure and gimbal elements, the actuator providing submicron positioning of the head while reducing undesirable vibrations of the flexure and gimbal elements. Such an actuator may have a frame that surrounds a cavity, the frame having an opening disposed adjacent to the head and a wall disposed on an opposite side of the frame from the opening. One or more active elements are disposed in the cavity and attached to the frame, the active element separated from the wall and having a dimension that varies in size in response to a control signal, with a moveable element coupled to the active element and to the head.
摘要翻译：致动器联接在头部和挠曲件和万向节元件之间，致动器提供头部的亚微米定位，同时减少弯曲和万向节元件的不期望的振动。这种致动器可以具有围绕空腔的框架，框架具有邻近头部设置的开口和设置在框架与开口相反的一侧的壁。一个或多个有源元件设置在空腔中并且附接到框架，有源元件与壁分离并且具有响应于控制信号而在尺寸上变化的尺寸，可移动元件耦合到有源元件和头。

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