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1. 发明授权

US5940247A Magnetic recording device with spindle motor lubricant of specified amine and carbamate concentrations/ratios 失效
标题翻译：具有主轴电机润滑剂的特定胺和氨基甲酸酯浓度/比率的磁记录装置
公开(公告)号：US5940247A
公开(公告)日：1999-08-17
申请号：US824667
申请日：1997-03-26
申请人： Thomas Edward Karis , Holavanahally Seshachar Nagaraj
发明人： Thomas Edward Karis , Holavanahally Seshachar Nagaraj
IPC分类号： C10M169/00 , G11B19/20 , G11B19/00 , H02K5/16
CPC分类号： G11B19/2009 , C10M169/00 , C10M2205/02 , C10M2207/125 , C10M2207/129 , C10M2207/281 , C10M2207/282 , C10M2207/283 , C10M2207/286 , C10M2207/34 , C10M2215/064 , C10M2215/065 , C10M2219/068 , C10N2210/00 , C10N2210/01 , C10N2210/02 , C10N2210/03 , C10N2210/04 , C10N2210/05 , C10N2240/00 , C10N2240/20 , C10N2240/201 , C10N2240/202 , C10N2240/203 , C10N2240/204 , C10N2240/205 , C10N2240/22 , C10N2240/30 , C10N2240/50 , C10N2240/52 , C10N2240/54 , C10N2240/56 , C10N2240/58 , C10N2240/60 , C10N2240/66
摘要： A magnetic recording data storage device includes a magnetic recording disk, a spindle motor, a head supported on an air bearing carrier and an actuator connected to the head carrier for moving the head across the rotating disk. The spindle motor has lubricant covered ball bearings where the lubricant includes an alkali hydroxystearate, an ester oil, a dialkyldiphenylamine and a dialkyldithiocarbamate.
摘要翻译：磁记录数据存储装置包括磁记录盘，主轴电动机，支撑在空气轴承架上的磁头和连接到磁头架的致动器，用于使磁头移动旋转盘。主轴电动机具有润滑剂覆盖的滚珠轴承，其中润滑剂包括碱性羟基硬脂酸酯，酯油，二烷基二苯胺和二烷基二硫代氨基甲酸酯。

2. 发明授权

US06334616B1 Ferrofluid cap seal for spindle motor 失效
标题翻译：用于主轴电机的碳氟化物盖密封
公开(公告)号：US06334616B1
公开(公告)日：2002-01-01
申请号：US09416970
申请日：1999-10-12
申请人： M. Amine Hajji , Andrew K. Hanlon , Holavanahally Seshachar Nagaraj
发明人： M. Amine Hajji , Andrew K. Hanlon , Holavanahally Seshachar Nagaraj
IPC分类号： F16J1544
CPC分类号： F16J15/43
摘要： A hard disk drive spindle motor has a hub, a drive shaft, and a bearing therebetween. The spindle motor also has a ferrofluid seal to prevent any incidental oil emissions from the bearing from entering the drive. A ferrofluid cap is mounted on the axial end of the spindle motor for sealing the ferrofluid seal. The cap is a flat ring and has an elastomeric pad around its outer edge. The pad seats in a recess in the bore of the hub. The cap does not touch the shaft as it rotates with the hub about the shaft. Any excess ferrofluid from the ferrofluid seal is forced radially outward away from the shaft by centrifugal force. The cap contains the excess ferrofluid within the spindle motor and prevents it from entering other areas of the disk drive.
摘要翻译：硬盘驱动主轴电机具有毂，驱动轴和它们之间的轴承。主轴电机还具有铁磁流体密封件，以防止任何偶然的轴承中的排放物进入驱动器。铁芯流体盖安装在主轴电机的轴向端，用于密封铁磁流体密封。盖子是一个平的环，并且在其外缘周围具有弹性垫。垫座位于轮毂孔中的凹槽中。当轴毂绕轴旋转时，盖子不会碰到轴。来自铁磁流体密封件的任何多余的铁磁流体通过离心力径向向外离开轴。盖子包含主轴电机内的过量铁磁流体，并防止其进入磁盘驱动器的其他区域。

3. 发明授权

US6051169A Vacuum baking process 失效
标题翻译：真空烘烤过程
公开(公告)号：US6051169A
公开(公告)日：2000-04-18
申请号：US920161
申请日：1997-08-27
申请人： Charles Allan Brown , John Martin Burns , Holavanahally Seshachar Nagaraj , James Joseph O'Neill , Muhammad Inayet Ullah , Leo Volpe , Herman Russell Wendt
发明人： Charles Allan Brown , John Martin Burns , Holavanahally Seshachar Nagaraj , James Joseph O'Neill , Muhammad Inayet Ullah , Leo Volpe , Herman Russell Wendt
IPC分类号： B29C35/02 , B29C37/00 , G11B33/14 , B29C71/02
CPC分类号： B29C35/0233 , G11B33/14 , B29C2035/0283 , B29C2791/006 , B29C37/006
摘要： A method of degassing a disk drive component including heating the drive component to a temperature ranging from about 70.degree. C. to 250.degree. C.; subjecting the drive component to vacuum pressure during heating, the vacuum pressure having a first pressure and a second pressure; and monitoring the vacuum pressure to determine the level of degassing of the disk drive component.
摘要翻译：一种对磁盘驱动部件进行脱气的方法，包括将驱动部件加热至约70℃至250℃的温度; 在加热期间对驱动部件进行真空压力，真空压力具有第一压力和第二压力; 并监测真空压力以确定磁盘驱动器部件的脱气水平。

4. 发明授权

US06179472B2 Ball bearing oil/grease loss containment method 有权
标题翻译：滚珠轴承油/油脂损失容纳法
公开(公告)号：US06179472B2
公开(公告)日：2001-01-30
申请号：US09170377
申请日：1998-10-13
申请人： Larry Joe Gilliland , Holavanahally Seshachar Nagaraj , Daniel Stacer
发明人： Larry Joe Gilliland , Holavanahally Seshachar Nagaraj , Daniel Stacer
IPC分类号： F16C3378
CPC分类号： F16C33/80 , F16C19/06 , F16C33/7846 , Y10S277/925
摘要： Shield designs for ball bearing based spindle motors that exhibit containment of grease and the base oil within the bearings at accelerated conditions of temperature and speed are provided at the shield OD contact area, the use of an impervious shield material, the use of barrier films, shield/bearing designs that use tortuous paths and labyrinth schemes for reducing the oil and grease loss from the shield ID gap of DASD spindle ball bearings, and stainless steel shield designs.
摘要翻译：在加速的温度和速度条件下，在轴承内容纳润滑脂和基础油的基于球轴承的主轴电动机的屏蔽设计设置在屏蔽OD接触区域，使用不透水屏蔽材料，使用阻挡膜，使用曲折路径和迷宫方案的屏蔽/轴承设计，可减少DASD主轴滚珠轴承的屏蔽ID间隙产生的油脂损失，以及不锈钢屏蔽设计。

5. 发明授权

US5957589A Fluid bearing seal and support structure 失效
公开(公告)号：US5957589A
公开(公告)日：1999-09-28
申请号：US987823
申请日：1997-12-10
申请人： Chen-Hsiung Lee , Holavanahally Seshachar Nagaraj , Neal Bertram Schirle
发明人： Chen-Hsiung Lee , Holavanahally Seshachar Nagaraj , Neal Bertram Schirle
IPC分类号： F16C17/04 , F16C33/10 , F16C33/74 , G11B19/20 , G11B25/04 , H02K5/124 , H02K5/16 , H02K7/08 , F16C17/10
CPC分类号： F16C33/107 , F16C33/74 , G11B19/2018 , H02K5/1677 , F16C2370/12 , G11B25/043 , H02K5/124
摘要： A bearing structure for a spindle motor is disclosed. The bearing structure provides a fluid bearing seal and support structure that may simultaneously addresses the problems of preventing oil leakage, of maintaining the bearing integrity under shock, of reducing oil evaporation and of minimizing distortion of the active bearing surface. The bearing structure includes a thrust plate coupled to a shaft and a bearing plate and load plate coupled to a sleeve, wherein the load plate urges the bearing plate towards the thrust plate, and wherein an adhesive is interposed between the load plate and the thrust plate. The adhesive may be an UV epoxy. The sleeve is operatively coupled to a stator, and the stator rotates the sleeve upon receiving a drive signal. The bearing further includes a diffusion barrier disposed between the sleeve and the stator. A second diffusion barrier is disposed between the load plate and the shaft. The bearing structure may also include an O-ring disposed above the bearing plate for sealing a gap between the bearing plate and the sleeve.

6. 发明授权

US06339515B2 Fluid bearing seal and support structure 失效
标题翻译：流体轴承密封和支撑结构
公开(公告)号：US06339515B2
公开(公告)日：2002-01-15
申请号：US09314486
申请日：1999-05-18
申请人： Chen-Hsiung Lee , Holavanahally Seshachar Nagaraj , Neal Bertram Schirle
发明人： Chen-Hsiung Lee , Holavanahally Seshachar Nagaraj , Neal Bertram Schirle
IPC分类号： G11B1702
CPC分类号： F16C33/107 , F16C33/74 , F16C2370/12 , G11B19/2018 , G11B25/043 , H02K5/124 , H02K5/1677
摘要： A bearing structure for a spindle motor is disclosed. The bearing structure provides a fluid bearing seal and support structure that may simultaneously addresses the problems of preventing oil leakage, of maintaining the bearing integrity under shock, of reducing oil evaporation and of minimizing distortion of the active bearing surface. The bearing structure includes a thrust plate coupled to a shaft and a bearing plate and load plate coupled to a sleeve, wherein the load plate urges the bearing plate towards the thrust plate, and wherein an adhesive is interposed between the load plate and the thrust plate. The adhesive may be an UV epoxy. The sleeve is operatively coupled to a stator, and the stator rotates the sleeve upon receiving a drive signal. The bearing further includes a diffusion barrier disposed between the sleeve and the stator. A second diffusion barrier is disposed between the load plate and the shaft. The bearing structure may also include an O-ring disposed above the bearing plate for sealing a gap between the bearing plate and the sleeve.
摘要翻译：公开了一种用于主轴电动机的轴承结构。轴承结构提供流体轴承密封和支撑结构，其可以同时解决防止漏油，保持轴承在冲击下的完整性，减少油蒸发和最小化主动轴承表面的变形的问题。轴承结构包括联接到轴的推力板和联接到套筒的支承板和承载板，其中负载板朝向推力板推动支承板，并且其中粘合剂介于负载板和止推板之间。粘合剂可以是UV环氧树脂。套筒可操作地联接到定子，并且定子在接收到驱动信号时旋转套筒。轴承还包括设置在套筒和定子之间的扩散阻挡层。第二扩散阻挡层设置在负载板和轴之间。轴承结构还可以包括设置在支承板上方的用于密封支承板和套筒之间的间隙的O形环。

7. 发明授权

US06280094B1 Ball bearing oil/grease loss containment shield 失效
标题翻译：滚珠轴承油/油脂损失防护罩
公开(公告)号：US06280094B1
公开(公告)日：2001-08-28
申请号：US09604146
申请日：2000-06-27
申请人： Larry Joe Gilliland , Holavanahally Seshachar Nagaraj , Daniel Stacer
发明人： Larry Joe Gilliland , Holavanahally Seshachar Nagaraj , Daniel Stacer
IPC分类号： F16C3378
CPC分类号： F16C33/80 , F16C19/06 , F16C33/7846 , Y10S277/925
摘要： Improved shield designs for ball bearing based spindle motors that exhibit improved containment of grease and the base oil within the bearings at accelerated conditions of temperature and speed is disclosed. Improved shield designs are provided at the shield OD contact area, the use of an impervious shield material, the use of barrier films, shield/bearing designs that use tortuous paths and labyrinth schemes for reducing the oil and grease loss from the shield ID gap of DASD spindle ball bearings, and improved stainless steel shield designs.
摘要翻译：公开了改进的用于基于滚珠轴承的主轴电机的屏蔽设计，其在加速的温度和速度条件下表现出改善的轴承内润滑脂和基础油的容纳性。在屏蔽OD接触区域提供改进的屏蔽设计，使用不透水屏蔽材料，使用阻挡膜，使用曲折路径的屏蔽/轴承设计和迷宫方案，以减少来自屏蔽ID间隙的油和油脂损失 DASD主轴球轴承，以及改进的不锈钢护罩设计。

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