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公开(公告)号:US4143339A
公开(公告)日:1979-03-06
申请号:US776824
申请日:1977-03-14
申请人: Robert J. Buzzard , Galen E. Mohler
发明人: Robert J. Buzzard , Galen E. Mohler
CPC分类号: H01S3/0323 , H01S3/036 , Y10T428/13
摘要: Several embodiments of a gas laser plasma tube are described having one or more internal gas return paths doubled back upon themselves within the structure which defines the gaseous discharge bore, to increase their length so that electrical gaseous discharge in the same is inhibited.
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公开(公告)号:US4916954A
公开(公告)日:1990-04-17
申请号:US396263
申请日:1989-08-21
申请人: Robert J. Buzzard
发明人: Robert J. Buzzard
CPC分类号: G01N3/08 , G01N3/32 , G01N2203/0003 , G01N2203/0005 , G01N2203/0012 , G01N2203/0064 , G01N2203/0066 , G01N2203/0069 , G01N2203/027
摘要: Apparatus is provided for obtaining a single crack in fatigue loading which emanates from a predetermined starting notch in a test specimen. This crack propagates in a direction in line with that of the applied Mode II load. The loading may be performed either monotonically or in a cyclic fatigue.
摘要翻译: 提供了用于获得在试样中从预定起始缺口发出的疲劳载荷中的单个裂纹的装置。 该裂纹与施加的模式II载荷的方向一致。 加载可以单调地或循环的疲劳进行。
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