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21. 发明授权

US4896344A X-ray video system 失效
标题翻译： X射线视频系统
公开(公告)号：US4896344A
公开(公告)日：1990-01-23
申请号：US661146
申请日：1984-10-15
申请人： John K. Grady , Richard E. Rice
发明人： John K. Grady , Richard E. Rice
IPC分类号： A61B6/02 , A61B6/06
CPC分类号： A61B6/4225 , A61B6/06
摘要： In an X-ray system in which a source directs X-radiation through a subject to a receptor which produces a secondary planar light image, the light image is projected on the planar input face of a light intensifier after passing through the scanning aperture of a moving mask substantially at the plane of the projected light image. Preferably the system includes a moving X-ray mask with a scanning aperture between the source and receptor and means driving the X-ray and light masks in synchronism with their apertures optically superimposed.
摘要翻译：在X射线系统中，其中源将X射线通过受试者引导到产生次平面光图像的受体，所述光图像在通过扫描孔之后投射到光增强器的平面输入面上基本上在投影光图像的平面处移动掩模。优选地，该系统包括具有在源和受体之间的扫描孔的移动X射线掩模，以及驱动X射线和光掩模与其光学重叠的孔同步的装置。

22. 发明授权

US4646339A Rotating X-ray mask with sector slits 失效
标题翻译：旋转X射线掩模与扇形狭缝
公开(公告)号：US4646339A
公开(公告)日：1987-02-24
申请号：US743386
申请日：1985-06-11
申请人： Richard E. Rice
发明人： Richard E. Rice
IPC分类号： A61B6/06 , G01N23/04 , G21K1/02 , G21K5/10 , G21K1/04
CPC分类号： G21K1/04 , A61B6/06 , G01N23/043 , G21K1/025 , G21K1/043
摘要： In an X-ray system with a rotating disk having sector slits transmitting fan shaped X-ray beams from a source through a subject to the image area of an X-ray receptor an improved ratio S/P of X-rays (S) scattered from the subject to primary rays (P) forming a true image of the subject at the image area is realized if the dimensions of the system fall within the following ranges of dimensionless ratios:(1) DW/RL is less than 0.5;(2) D/L is greater than 0.15;(3) LS*N/WD is greater than 0.15 and less than 0.6 whereinD is the distance of the disk from the X-ray source,W is the width of the X-ray image area spanned by the narrow beams,R is the radius of the disk,L is the distance between the X-ray source and the receptor.S* is the radially outermost slit width in the X-ray beam, andN is the number of slits whose beams simultaneously intersect the outer edge of the image area.
摘要翻译：在具有扇形狭缝的旋转盘的X射线系统中，扇形狭缝将扇形X射线束从源通过受试者传送到X射线受体的图像区域，散射的X射线（S）的比S / P 如果系统的尺寸在无量纲比的以下范围内，则从主体到主要射线（P）在图像区域形成对象的真实图像：（1）DW / RL小于0.5; （2）D / L大于0.15; （3）LS * N / WD大于0.15且小于0.6其中D是光盘与X射线源的距离，W是由窄光束跨越的X射线图像区域的宽度，R是盘的半径L是X射线源和受体之间的距离。 S *是X射线束的径向最外侧的狭缝宽度，N是其束同时与图像区域的外缘交叉的狭缝的数量。

23. 发明授权

US4549209A X-Ray image converter system 失效
标题翻译： X射线图像转换器系统
公开(公告)号：US4549209A
公开(公告)日：1985-10-22
申请号：US511226
申请日：1983-07-06
申请人： John K. Grady , Richard E. Rice
发明人： John K. Grady , Richard E. Rice
IPC分类号： G01T1/164 , H04N7/18 , H01J40/14
CPC分类号： G01T1/1645
摘要： An X-ray system includes an X-ray receptor producing on its area a light image with a finite range of intensities. Two or more video tubes scan the same area of the image to generate corresponding electrical output signals, each tube having a bias electrode controlled by a variable voltage source so that one tube generates output signals whose amplitude corresponds to one portion of the range of light intensities at the image area and the output signals of the other tube correspond to a different range portion of the image area light intensities.
摘要翻译： X射线系统包括在其区域上产生具有有限的强度范围的光图像的X射线受体。两个或多个视频管扫描图像的相同区域以产生相应的电输出信号，每个管具有由可变电压源控制的偏置电极，使得一个管产生其幅度对应于光强度范围的一部分的输出信号在图像区域，另一个管的输出信号对应于图像区域光强度的不同范围部分。

24. 发明授权

US4189294A Flameless combustion burner and method of operation 失效
标题翻译：无焰燃烧器及操作方法
公开(公告)号：US4189294A
公开(公告)日：1980-02-19
申请号：US843434
申请日：1977-10-18
申请人： Richard E. Rice , Charles W. Peterson
发明人： Richard E. Rice , Charles W. Peterson
IPC分类号： F23C13/00 , F23D14/18 , F23D13/14
CPC分类号： F23C13/00 , F23D14/18 , Y02E20/342
摘要： A flameless combustion burner and method for operating the device. The burner includes an ignition zone with a starting device, a catalyst zone, and a plenum. To obtain flameless combustion, a fuel and a combustion supporting gas is introducted into the ignition zone from the plenum and a flame is initiated by means of the starting device. The products of combustion flow over the catalyst to heat it to a temperature where it can initiate flameless combustion. Then the flow of either the fuel or the combustion supporting gas or both is momentarily stopped and the flame is extinguished. The flow is then resumed while the catalyst is still hot and flameless combustion will start in the catalyst zone. The products of combustion are withdrawn from the catalyst zone and the heat is utilized in the burner.
摘要翻译：一种无焰燃烧器及其操作方法。燃烧器包括具有起动装置，催化剂区和增压室的点火区。为了获得无焰燃烧，燃料和燃烧支持气体从气室引入点火区域，并通过起动装置启动火焰。燃烧产物在催化剂上流动，将其加热至可启动无焰燃烧的温度。然后燃料或燃烧支持气体或二者的流动暂时停止，火焰熄灭。然后在催化剂仍然热的同时恢复流动，并且在催化剂区域中开始无焰燃烧。燃烧产物从催化剂区域中排出，并且在燃烧器中使用热量。

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