公开(公告)号：US06704158B2

公开(公告)日：2004-03-09

申请号：US09875413

申请日：2001-06-05

申请人： Muhammad A. Hawwa ,  Edmund B. Fanslau ,  Kenneth F. Young

发明人： Muhammad A. Hawwa ,  Edmund B. Fanslau ,  Kenneth F. Young

IPC分类号： G11B2102

CPC分类号： G11B5/4853 ,  G11B5/5552

摘要： A head gimbal assembly for a disk drive. The head gimbal assembly includes a load beam defining a longitudinal axis. The head gimbal assembly further includes a flexure with a portion of said flexure being attached to said load beam. The head gimbal assembly further includes a slider including a read/write head. The head gimbal assembly further includes a collocated microactuator which connects between said flexure and said slider for providing pure or nearly pure lateral movement to said slider in a plane of motion that includes the longitudinal axis. The collocated microactuator is a shear mode piezoelectric motor and disposed between the slider and the load beam along an axis disposed orthogonal to the longitudinal axis.

摘要翻译： 用于磁盘驱动器的磁头万向架组件。 头部万向节组件包括限定纵向轴线的负载梁。 头部万向架组件还包括挠曲件，其中所述挠曲件的一部分附接到所述负载梁。 头万向架组件还包括一个包括读/写头的滑块。 头万向架组件还包括一个并置的微致动器，其连接在所述挠曲件和所述滑块之间，用于在包括所述纵向轴线的运动平面中向所述滑块提供纯粹或几乎纯净的侧向运动。 配置的微型致动器是剪切模式压电电动机，并且沿着与纵向轴线正交设置的轴线设置在滑块和负载梁之间。

公开(公告)号：US06376964B1

公开(公告)日：2002-04-23

申请号：US09860158

申请日：2001-05-16

申请人： Kenneth F. Young ,  Edmund B. Fanslau ,  Muhammad A. Hawwa

发明人： Kenneth F. Young ,  Edmund B. Fanslau ,  Muhammad A. Hawwa

IPC分类号： G11B556

CPC分类号： G11B5/5552 ,  G11B5/4873

摘要： A head gimbal assembly (10) for a disk drive (1), having a flexure (30) with a stationary portion (40) and at least one movable portion (42), a portion of the flexure (30) being attached to a load beam (28). A slider (20) containing a read/write head (22) is attached to one of the movable portions (40) of the flexure (30). The load beam (28) provides a center of rotation (54) for the slider (20) and one or more microactuators (24) connect between the stationary portion (40) of the flexure (30) and one of the movable portions (42, 44) for applying a moment which causes pure or nearly pure rotation of the slider (20) about the center of rotation (54). A disk drive (1) and an actuator arm (2) including the head gimbal assembly (10) are also disclosed.

摘要翻译： 一种用于盘驱动器（1）的头部万向架组件（10），具有带有固定部分（40）和至少一个可移动部分（42）的挠曲件（30），所述挠曲件（30）的一部分附接到 负载梁（28）。 包含读/写头（22）的滑块（20）附接到挠曲件（30）的可移动部分（40）中的一个。 负载梁（28）提供用于滑块（20）的旋转中心（54），并且一个或多个微致动器（24）连接在挠曲件（30）的固定部分（40）与可动部分（42）中的一个之间 一个磁盘驱动器（1）和包括头部万向节组件（10）的致动器臂（2），其中，所述磁头驱动器（1）和致动器臂（2） 也被披露。

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。

公开(公告)号：US06961221B1

公开(公告)日：2005-11-01

申请号：US10024438

申请日：2001-12-18

申请人： Yimin Niu ,  Edmund B. Fanslau, Jr. ,  Muhammad A. Hawwa

发明人： Yimin Niu ,  Edmund B. Fanslau, Jr. ,  Muhammad A. Hawwa

IPC分类号： G11B5/48 ,  G11B5/55 ,  G11B5/56

CPC分类号： G11B5/56 ,  G11B5/4826 ,  G11B5/5552

摘要： An actuator is coupled between a head and a flexure, the actuator providing submicron positioning of the head while reducing undesirable vibrations of the flexure. The actuator includes a stator and a rotor, with a plurality of deformable elements coupled between the stator and the rotor. In one aspect the rotor, stator and deformable elements are constructed so that the rotor has a substantially fixed axis of rotation relative to the stator, and the actuation of a transducer in the head is magnified. In another aspect the rotor is coupled to the head so that the axis of rotation is substantially aligned with the center of mass of the head and rotor, increasing the frequency at which the actuator can move the head and reducing vibrations in the flexure caused by actuation of the head.

摘要翻译： 致动器联接在头部和挠曲件之间，致动器提供头部的亚微米定位，同时减少挠曲件的不期望的振动。 致动器包括定子和转子，其中多个可变形元件联接在定子和转子之间。 在一个方面，转子，定子和可变形元件被构造成使得转子相对于定子具有基本上固定的旋转轴线，并且头部中的换能器的致动被放大。 在另一方面，转子联接到头部，使得旋转轴线基本上与头部和转子的质心相对准，增加了致动器能够移动头部的频率，并减少了由致动器引起的弯曲中的振动 的头。

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。

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。

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。

公开(公告)号：US06421211B1

公开(公告)日：2002-07-16

申请号：US09938084

申请日：2001-08-23

申请人： Muhammad A. Hawwa ,  Jamshid Bozorgi

发明人： Muhammad A. Hawwa ,  Jamshid Bozorgi

IPC分类号： G11B5596

CPC分类号： G11B5/5556

摘要： The present invention is embodied in an actuator arm which is mounted to a primary actuator. The primary actuator positions the actuator arm, with a read/write head mounted to the actuator arm, across a data storage disk. The actuator arm comprises an inboard portion, an outboard portion and a pair of bimorph actuators. The inboard portion has a longitudinal axis and is attached to the primary actuator. The outboard portion has the read/write head mounted onto it. The pair of bimorph actuators are deflectable together in a common direction and are connected between the inboard and the outboard portions. Upon deflection of the bimorph actuators in the same direction, the outboard portion is translated along an at least nearly straight line transverse to the longitudinal axis of the inboard portion. This transverse motion allows the read/write head to be kept substantially within a plane parallel to the surface of the data storage disk, preventing damage caused by possible contact between slider and the disk surface from rolling the slider due to out-of-plane motions. Further, the use of bimorph actuators provide increased displacements of the read/write head. Also, since the head displacement is not a function of microactuator's position along the actuator arm, the actuator arm can be shorter, allowing for use in compact disk drives.

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。

公开(公告)号：US20160230778A1

公开(公告)日：2016-08-11

申请号：US14615052

申请日：2015-02-05

申请人： Samir N. Mekid ,  Muhammad A. Hawwa ,  Zheji Liu

发明人： Samir N. Mekid ,  Muhammad A. Hawwa ,  Zheji Liu

IPC分类号： F04D29/66 ,  G10K11/00

CPC分类号： G10K11/002 ,  F04D29/441 ,  F04D29/665 ,  F05D2250/51 ,  F05D2250/52 ,  G10K11/172

摘要： An acoustic resonator assembly may include a first acoustic liner and a second acoustic liner. The first acoustic liner may define a first plurality of openings extending between first and second surfaces thereof. The second acoustic liner may be rotatably coupled to the first acoustic liner and at least one of the first acoustic liner and the second acoustic liner may be configured to rotate relative to each other to attenuate one or more frequencies of acoustic energy generated by working fluid flowing past the acoustic resonator assembly. The second acoustic liner may define a second plurality of openings extending between first and second surfaces thereof. A number of degrees of freedom of the acoustic resonator assembly may be varied by rotating the first acoustic liner and/or the second acoustic liner.

摘要翻译： 声共振器组件可以包括第一声衬和第二声衬。 第一声​​学衬垫可以限定在其第一和第二表面之间延伸的第一多个开口。 第二声衬垫可以可旋转地联接到第一声学衬垫，并且第一声衬和第二声衬中的至少一个可以被配置为相对于彼此旋转以衰减由工作流体流动产生的声能的一个或多个频率 经过声谐振器组件。 第二声衬垫可以限定在其第一和第二表面之间延伸的第二多个开口。 可以通过旋转第一声衬和/或第二声衬垫来改变声共振器组件的多个自由度。