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1. 发明授权

US5181783A Apparatus for eliminating whirl instability in a gas supported bearing 失效
标题翻译：用于消除气体支撑轴承中的漩涡不稳定性的装置
公开(公告)号：US5181783A
公开(公告)日：1993-01-26
申请号：US752017
申请日：1991-08-29
申请人： Randy J. Sherman , August O. Weilbach , Derald F. Hanson , C. Dwight Smith
发明人： Randy J. Sherman , August O. Weilbach , Derald F. Hanson , C. Dwight Smith
IPC分类号： F16C33/10 , F16C39/06 , H02K5/16 , H02K7/09
CPC分类号： F16C33/106 , F16C17/026 , F16C33/1065 , F16C39/063 , H02K5/163 , H02K7/09
摘要： A gas supported bearing includes a first stationary bearing element having a longitudinal axis and a first bearing surface. A second rotating bearing element is coaxially aligned with respect to the first bearing element and includes a second bearing surface. A pneumatic load ramp is formed in one of the bearing surfaces to apply an asymmetric load to either bearing element to eliminate bearing whirl instability.
摘要翻译：气体支撑轴承包括具有纵向轴线和第一支承表面的第一固定轴承元件。第二旋转轴承元件相对于第一轴承元件同轴对准，并且包括第二支承表面。在一个轴承表面上形成气动负载斜坡，以对轴承元件施加不对称负载以消除轴承旋转不稳定性。

2. 发明授权

US4509819A Optical beam pulse generator 失效
标题翻译：光束脉冲发生器
公开(公告)号：US4509819A
公开(公告)日：1985-04-09
申请号：US501401
申请日：1983-06-06
申请人： Randy J. Sherman , Derald F. Hanson
发明人： Randy J. Sherman , Derald F. Hanson
IPC分类号： G02B26/12 , G02B27/00 , G02B27/17 , G02B17/00
CPC分类号： G02B26/129
摘要： An optical beam pulse generator comprises segmented reflecting means aligned to receive an input light beam. The segmented and reflecting means includes a plurality of circumferentially spaced apart mirror facets having a centrally located, vertically oriented axis of rotation and mirror facet to axis errors. The segmented reflecting means is rotated to sequentially reflect the input beam to generate a pulsed beam. A prism or similar device redirects the pulse beam back onto the reflecting means to generate a redirected pulse beam vertically displaced from the pulse beam by a distance related to the mirror facet to axis error and laterally offset from the pulse beam by a distance related to the angle between the mirror facet and the input light beam. The redirected pulsed beam is reflected from each of the mirror facets to generate a pulsed reflected output beam.
摘要翻译：光束脉冲发生器包括对准以接收输入光束的分段反射装置。分段和反射装置包括多个周向间隔开的镜面，其具有位于中心的垂直定向的旋转轴线和镜面与轴线错误。旋转分段反射装置以依次反射输入光束以产生脉冲光束。棱镜或类似装置将脉冲光束重定向回反射装置，以产生从脉冲光束垂直移位一定距离的重定向脉冲光束与镜面相关的轴向误差，并从脉冲光束横向偏移与之相关的距离镜面与输入光束之间的角度。重定向的脉冲光束从每个镜面反射以产生脉冲反射的输出光束。

3. 发明授权

US5271677A Method for eliminating whirl instability in a gas supported bearing 失效
标题翻译：消除气体支撑轴承旋转不稳定的方法
公开(公告)号：US5271677A
公开(公告)日：1993-12-21
申请号：US952600
申请日：1992-09-28
申请人： Randy J. Sherman , August O. Weilbach , Derald F. Hanson , C. Dwight Smith
发明人： Randy J. Sherman , August O. Weilbach , Derald F. Hanson , C. Dwight Smith
IPC分类号： F16C33/10 , F16C39/06 , H02K5/16 , H02K7/09 , F16C32/06
CPC分类号： F16C33/106 , F16C17/026 , F16C32/0427 , F16C33/1065 , F16C39/063 , H02K5/163 , H02K7/09
摘要： A gas supported bearing includes a first stationary bearing element having a longitudinal axis and a first bearing surface. A second rotating bearing element is coaxially aligned with respect to the first bearing element and includes a second bearing surface. A pneumatic load ramp is formed in one of the bearing surfaces to apply an asymmetric load to either bearing element to eliminate bearing whirl instability.
摘要翻译：气体支撑轴承包括具有纵向轴线和第一支承表面的第一固定轴承元件。第二旋转轴承元件相对于第一轴承元件同轴对准，并且包括第二支承表面。在一个轴承表面上形成气动负载斜坡，以对轴承元件施加不对称负载以消除轴承旋转不稳定性。

4. 发明授权

US4537465A Apparatus with two input beams for generating optical scans 失效
标题翻译：具有用于产生光学扫描的两个输入光束的装置
公开(公告)号：US4537465A
公开(公告)日：1985-08-27
申请号：US501504
申请日：1983-06-06
申请人： Randy J. Sherman , Derald F. Hanson
发明人： Randy J. Sherman , Derald F. Hanson
IPC分类号： G02B26/12 , G02B27/00 , G02B27/17 , G02B27/14
CPC分类号： G02B26/129 , G02B27/0031
摘要： A system is disclosed for transforming a collimated beam of light into a beam of light which repetitively scans a fixed path by utilizing first and second mirrors repetitively rotated through a predetermined angular displacement. The angle between each mirror facet and mirror axis of rotation varies and defines a facet to axis error which is eliminated by the present invention. A first mirror receives an upper input beam and repetitively generates a first scan. A second mirror receives a lower input beam and repetitively generates a second scan. First and second redirecting means such as first and second prisms form first and second redirected scans which are ultimately reflected from the mirrors to generate a plurality of first and second output scans. A lens converges the first and second output scans onto a fixed path such that the scanner optical output beam repetitively scans the fixed path and eliminates the effect of the facet to axis errors of the first and second mirrors.
摘要翻译：公开了一种用于将准直光束变换为通过利用经过预定角位移反复旋转的第一和第二反射镜重复地扫描固定路径的光束的系统。每个镜面和反射镜旋转轴之间的角度变化并且限定了由本发明消除的小面与轴的误差。第一反射镜接收上输入光束并重复地产生第一扫描。第二镜接收较低的输入光束并重复地产生第二次扫描。第一和第二重定向装置例如第一和第二棱镜形成第一和第二重定向扫描，其最终从反射镜反射以产生多个第一和第二输出扫描。 A透镜将第一和第二输出扫描会聚到固定路径上，使得扫描器光学输出光束重复地扫描固定路径并消除小面对第一和第二反射镜的轴误差的影响。

5. 发明授权

US4433894A Method and apparatus for generating optical scans 失效
标题翻译：用于产生光学扫描的方法和装置
公开(公告)号：US4433894A
公开(公告)日：1984-02-28
申请号：US320331
申请日：1981-11-12
申请人： Derald F. Hanson , Randy J. Sherman
发明人： Derald F. Hanson , Randy J. Sherman
IPC分类号： G02B26/12 , G02B27/00 , G02B27/17
CPC分类号： G02B27/0031 , G02B26/129
摘要： A system is disclosed for transforming a collimated beam of light, such as that generated by a laser, into a beam of light which repetitively scans a fixed path by utilizing a mirror which is repetitively rotated through a predetermined angular displacement. The angle between the mirror axis of rotation and the mirror position relative to the axis varies between subsequent mirror rotations and defines a scanning beam rotational axis error which is eliminated by the present invention. An input beam of collimated light is directed onto the rotating mirror along a first path to produce a first scanned reflected output beam for each rotation of the mirror. A second scanned reflected output beam is generated by redirecting the first scanned reflected output beam through a prism and back onto the mirror along a second path. The second path is vertically displaced from the first path by a distance related to the mirror rotational axis error. Each point at which the second scanned output beam intercepts the mirror is laterally offset from a corresponding point at which the input beam intercepts the mirror by a distance related to the relative angle between the mirror and the input light beam. The second scanned reflected output beam is reflected from the mirror to generate a third scanned reflected output beam for each deflection of the mirror. The repetitive deflections of the mirror produce a plurality of third scanned reflected output beams which define a grouping of non-coincident surfaces which are also nonintersecting with respect to the input beam. The third scanned reflected output beams are converged onto the fixed path such that the optical output beam repetitively scans the fixed path without any perceptible deviations caused by the mirror rotational axis error.
摘要翻译：公开了一种用于将诸如由激光产生的准直光束变换成通过利用重复地旋转了预定角位移的反射镜重复地扫描固定路径的光束的系统。反射镜旋转轴线和反射镜相对于轴的位置之间的角度在随后的反射镜旋转之间变化，并且限定了本发明消除的扫描光束旋转轴误差。准直光的输入光束沿着第一路径被引导到旋转镜上，以产生用于反射镜的每次旋转的第一扫描反射的输出光束。第二扫描的反射输出光束通过将第一扫描的反射输出光束重新定向穿过棱镜并沿着第二路径返回到反射镜而产生。第二路径从第一路径垂直移位与反射镜旋转轴误差相关的距离。第二扫描输出光束拦截反射镜的每个点横向偏离相应的点，在该点处，输入光束将反射镜与反射镜和输入光束之间的相对角度相隔一定距离。第二扫描的反射输出光束从反射镜反射，以产生用于反射镜的每个偏转的第三扫描的反射输出光束。反射镜的重复偏转产生多个第三扫描的反射输出光束，其限定了一组不相关的表面，这些表面也相对于输入光束是不间断的。第三扫描的反射输出光束会聚到固定路径上，使得光输出光束重复地扫描固定路径而没有由反射镜旋转轴误差引起的任何可察觉的偏差。

6. 发明授权

US5019738A Self-pressurizing gas supported surface-roughness bearing 失效
标题翻译：自加气支撑表面粗糙度轴承
公开(公告)号：US5019738A
公开(公告)日：1991-05-28
申请号：US568416
申请日：1990-07-16
申请人： August O. Weilbach , Derald F. Hanson , C. Dwight Smith
发明人： August O. Weilbach , Derald F. Hanson , C. Dwight Smith
IPC分类号： F16C17/02 , F16C32/00 , F16C32/04 , F16C33/10 , F16C39/06 , G02B26/12 , H02K5/16 , H02K7/09
CPC分类号： H02K7/09 , F16C17/026 , F16C32/0402 , F16C32/0427 , F16C33/1005 , H02K5/1675 , F16C2380/26
摘要： A self-pressurizing gas supported bearing includes a cylindrical bearing sleeve having a longitudinal axis and a cylindrical inner surface forming a first bearing surface with a random surface texture having a first R.sub.a roughness profile. A cylindrical bearing shaft is positioned coaxially within the bearing sleeve and includes a cylindrical outer surface forming a second bearing surface with a random surface texture having a second R.sub.a roughness profile. The sum of the first and second R.sub.a roughness profiles falls within the range of from about eighteen to sixty. A drive system establishes a relative rotational velocity between the bearing sleeve and the bearing shaft, generating a bearing stiffness force which causes the overlapping bearing surfaces to lift off and break contact. The bearing sleeve and shaft are dimensioned to maintain a predetermined means spacing between the sleeve and shaft. The bearing may also take the form of a linear bearing or other cylindrical configurations.
摘要翻译：自加压气体支撑轴承包括具有纵向轴线的圆柱形轴承套筒和形成具有第一Ra粗糙度轮廓的随机表面纹理的第一轴承表面的圆柱形内表面。圆柱形轴承轴同轴地位于轴承套内，并且包括形成具有第二Ra粗糙度轮廓的随机表面纹理的第二支承表面的圆柱形外表面。第一和第二Ra粗糙度轮廓的总和在约十八到六十的范围内。驱动系统建立在轴承套和轴承轴之间的相对旋转速度，产生轴承刚度力，其使重叠的轴承表面脱离并断开接触。轴承套筒和轴的尺寸被设计成在套筒和轴之间保持预定的装置间距。轴承也可以采用直线轴承或其它圆柱形结构。

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