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1. 发明授权

US5571760A Silicon nitride having a high tensile strength 失效
标题翻译：具有高拉伸强度的氮化硅
公开(公告)号：US5571760A
公开(公告)日：1996-11-05
申请号：US324937
申请日：1994-10-18
申请人： Vimal K. Pujari , Dennis M. Tracey , Michael R. Foley , Norman I. Paille , Paul J. Pelletier , Lenny C. Sales , Craig A. Willkens , Russell L. Yeckley
发明人： Vimal K. Pujari , Dennis M. Tracey , Michael R. Foley , Norman I. Paille , Paul J. Pelletier , Lenny C. Sales , Craig A. Willkens , Russell L. Yeckley
IPC分类号： C04B35/593 , C04B41/00 , C04B41/80 , C04B35/587
CPC分类号： C04B41/80 , C04B35/593 , C04B41/0072
摘要： A silicon nitride ceramic comprising:a) inclusions no greater than 25 microns in length,b) agglomerates no greater than 20 microns in diameter, andc) a surface finish of less than about 8 microinches, said ceramic having a four-point flexural strength of at least about 900 MPa.
摘要翻译：一种氮化硅陶瓷，其包括：a）长度不大于25微米的夹杂物，b）直径不大于20微米的附聚物，和c）小于约8微英寸的表面光洁度，所述陶瓷具有四点弯曲强度至少约900MPa。

2. 发明授权

US06701560B2 Nail pulling utility tool 失效
标题翻译：指甲拉实用工具
公开(公告)号：US06701560B2
公开(公告)日：2004-03-09
申请号：US10123829
申请日：2002-04-15
申请人： Michael R. Foley
发明人： Michael R. Foley
IPC分类号： B25D104
CPC分类号： B25C11/02 , B25B7/02 , B25B7/22 , B25D1/04 , B25F1/006
摘要： A nail-pulling tool has a two-piece proximal handle pivotally joined with a two-piece distal jaw by a pivoting means. The distal jaw is operated like a standard hand tool with compression of the handle causing the jaw to close, and vice-versa. The distal jaw has an elliptical surface so that with the distal jaw resting on a work surface and closed about a nail protruding from the work surface, and with the handle laying adjacent the work surface, raising the handle away from the work surface in an arc, causes the nail to be pulled from the work surface at an ever increasing rate. Axially oriented jaw teeth provide improved gripping and a pair of tongue and groove opposing surfaces enable cutting and further improved gripping. A hammer surface enables driving of a nail into the work surface rather than pulling it out, and a claw element enables pulling a nail head up so as to be better gripped by the tool. The tool is ideally designed for pulling a bent nail partially upward, straightening it, and then hammering it back into the surface in a more correct and improved manner for accomplishing its fastening task.
摘要翻译：拔钉工具具有通过枢转装置与两件式远端颚枢轴连接的两件式近端手柄。远端钳口像标准手动工具一样操作，手柄的压缩导致钳口闭合，反之亦然。远端钳口具有椭圆表面，使得远端钳口位于工作表面上并且围绕从工作表面突出的指甲闭合，并且手柄位于工作表面附近，使把手远离工作表面以弧形，使得钉子以不断增加的速度从工作表面拉出。轴向取向的颚齿提供改进的夹持，并且一对榫舌和凹槽相对的表面能够切割并进一步改善夹持。锤表面能够将钉子驱动到工作表面中，而不是将其拉出，并且爪元件能够将钉头向上拉，以便更好地被工具夹住。该工具是理想的设计，用于将弯曲的指甲部分地向上拉，使其矫直，然后以更正确和改进的方式将其锤击回到表面中以完成其紧固任务。

3. 发明授权

US5759481A Silicon nitride having a high tensile strength 失效
标题翻译：具有高拉伸强度的氮化硅
公开(公告)号：US5759481A
公开(公告)日：1998-06-02
申请号：US739107
申请日：1996-10-25
申请人： Vimal K. Pujari , Dennis M. Tracey , Michael R. Foley , Norman I. Paille , Paul J. Pelletier , Lenny C. Sales , Craig A. Willkens , Russell L. Yeckley
发明人： Vimal K. Pujari , Dennis M. Tracey , Michael R. Foley , Norman I. Paille , Paul J. Pelletier , Lenny C. Sales , Craig A. Willkens , Russell L. Yeckley
IPC分类号： C04B35/593 , C04B41/00 , C04B41/80 , C04B35/584
CPC分类号： C04B41/009 , C04B35/593 , C04B41/0072 , C04B41/80
摘要： A ceramic body comprising at least about 80 w/o silicon nitride and having a mean tensile strength of at least about 800 MPa.
摘要翻译：一种陶瓷体，其包含至少约80w / o的氮化硅并具有至少约800MPa的平均拉伸强度。

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