公开(公告)号：US4956047A

公开(公告)日：1990-09-11

申请号：US229686

申请日：1988-08-08

申请人： Meckie T. Harris ,  John J. Larkin ,  Alton F. Armington ,  John K. Kennedy

发明人： Meckie T. Harris ,  John J. Larkin ,  Alton F. Armington ,  John K. Kennedy

IPC分类号： C30B7/00

CPC分类号： C30B7/00 ,  C30B29/18 ,  Y10S117/90 ,  Y10T117/1096

摘要： Ultra high pure quartz is grown by a one step in-situ growth process where the nutrient is high purity silica. A negative temperature gradient is maintained between the nutrient zone and the seed zone until about the start of crystal growth. A sealable container made of silver contains the nutrient and the seed within the autoclave chamber.

摘要翻译： 超高纯石英通过一步原位生长过程生长，其中营养物是高纯度二氧化硅。 在营养区和种子区之间保持负温度梯度，直到晶体生长开始。 由银制成的可密封容器包含高压釜室内的营养物和种子。

公开(公告)号：US4156543A

公开(公告)日：1979-05-29

申请号：US800608

申请日：1977-05-26

申请人： John Taylor ,  John K. Kennedy

发明人： John Taylor ,  John K. Kennedy

IPC分类号： B60J1/20 ,  B62D35/00 ,  B60J9/00

CPC分类号： B62D35/001 ,  B60J1/20

摘要： An adjustable air-deflector device adapted to be movably mounted on the roof of a driving cab of a commercial vehicle and comprising a substantially planar member having the shape of a truncated isosceles triangle, the shorter parallel edge of which is hinged to the cab roof, and the non-parallel edges of which are connected to the cab roof through adjustable bellows-type side walls, there being angle-adjustment means provided to allow the driver of the vehicle to adjust the angle of the planar member relative to the cab roof to produce minimal drag over a trailer portion of the vehicle. Driver determines optimum angle either from a table of predetermined figures or from a drag pressure metering instrument mounted in the cab of the vehicle. Air-deflector device can be used in a tractor-trailer assembly in combination with adjustable side curtains, which close the gap between the tractor and trailer and reduce the component of drag produced by yaw between the moving tractor and trailer.

摘要翻译： 一种可调节的导风装置，适于可移动地安装在商业车辆的驾驶室的顶部上，并且包括基本上平面的构件，其具有截短的等腰三角形的形状，其较短的平行边缘铰接到驾驶室车顶， 并且其非平行边缘通过可调节的波纹管型侧壁连接到驾驶室车顶，设有角度调节装置，其被设置成允许车辆的驾驶员将平面构件相对于驾驶室车顶的角度调节到 在车辆的拖车部分产生最小的拖动。 驾驶员可根据预定图形的表格或安装在车辆驾驶室内的拖曳压力计量仪器确定最佳角度。 导风装置可用于拖拉机 - 拖车组件中，与可调节的侧帘组合使用，可缩小拖拉机和拖车之间的间隙，并减少运动拖拉机和拖车之间由偏航产生的阻力分量。

公开(公告)号：US4602979A

公开(公告)日：1986-07-29

申请号：US731744

申请日：1985-05-07

申请人： Robert C. Marshall ,  John K. Kennedy ,  Charles S. Sahagian

发明人： Robert C. Marshall ,  John K. Kennedy ,  Charles S. Sahagian

IPC分类号： C30B15/02 ,  C30B15/10

CPC分类号： C30B15/10 ,  C30B15/02

摘要： This invention describes a modified method of growing high purity, compositionally ungraded, single crystals of multicomponent solid solutions by the Czochralski, Kyropoulos, Bridgman or other related melt growth technique. In the method of this invention, the container or crucible used to contain the multicomponent crystal growing melt is fabricated from the higher melting point component of the multicomponent melt while lower melting point components are positioned within the crucible. The temperature of the crucible is then raised beyond the melting point of the lower melting point component to a temperature which is the exact melting point of the solid solution, or crystal alloy desired. This will dissolve an amount of the crucible material (higher melting point component) equal to the exact amount required to produce a solid solution having the desired composition. A seed is then introduced into the melt and normal crystal pulling is initiated resulting in the growth of a compositionally ungraded crystal having a uniform compositional content throughout its structure.

摘要翻译： 本发明描述了通过Czochralski，Kyropoulos，Bridgman或其它相关的熔融生长技术生长高分子多组分固溶体的高纯度，组成未分级的单晶的改进方法。 在本发明的方法中，用于容纳多组分晶体生长熔体的容器或坩埚由多组分熔体的较高熔点组分制成，而较低熔点组分位于坩埚内。 然后将坩埚的温度升高到低熔点组分的熔点以上至所需固溶体或晶体合金的精确熔点的温度。 这将溶解一定量的坩埚材料（较高熔点成分）等于产生具有所需组成的固溶体所需的精确量。 然后将晶种引入熔体中，引发正常的晶体拉伸，导致其整个结构具有均匀组成含量的组成未分级晶体的生长。