专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4199764A Dual band combiner for horn antenna 失效
标题翻译：喇叭天线的双频带组合器
公开(公告)号：US4199764A
公开(公告)日：1980-04-22
申请号：US8207
申请日：1979-01-31
申请人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch , William F. Williams , Seymour B. Cohn
发明人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch , William F. Williams , Seymour B. Cohn
IPC分类号： H01Q5/00 , H01Q5/55 , H01Q13/02 , H01Q13/00
CPC分类号： H01Q13/0208 , H01Q5/55
摘要： A corrugated horn antenna adapted to be coupled to a waveguide at the apex thereof for X-band excitation is further adapted to be connected to waveguides through a circumferential slot for S-band excitation at four distinct phases S.sub.1 through S.sub.4 selected for the desired S-band polarization. The circumferential slot is positioned along the axial length of the horn for good impedance matching and is provided with an X-band choke in the form of two concentric choke slots. For further improvement in impedance matching, the second (outer) choke slot is divided by plugs into four segments that coincide with waveguide ports for the four distinct phases of the S-band.
摘要翻译：适于耦合到其顶点的用于X波段激发的波导的波纹喇叭天线还适于通过用于期望的S-波段的四个不同相位S1至S4的用于S波段激励的周边槽连接到波导，带极化。圆周槽沿着喇叭的轴向长度定位以获得良好的阻抗匹配，并且设置有两个同心节流槽形式的X波段扼流圈。为了进一步改进阻抗匹配，第二（外）扼流槽由插头分成与S波段的四个不同相位的波导端口重合的四个段。

2. 发明授权

US4332370A Fluid flow control valve, principally of the ball or plug type 失效
标题翻译：流体流量控制阀，主要是球或塞式
公开(公告)号：US4332370A
公开(公告)日：1982-06-01
申请号：US172022
申请日：1980-07-24
申请人： William F. Williams
发明人： William F. Williams
IPC分类号： F16K5/02 , F16K5/06 , F16K41/16 , F16K31/44
CPC分类号： F16K41/16 , F16K5/0285 , F16K5/0694 , Y10T137/1797
摘要： A ball or plug valve comprises a ball or plug having a through bore which is rotatable in a metal body to control the flow of fluid through a passage in the body. The ball can be rotated from the exterior of the body by means of a metal stem which is rotatably received in an opening in the metal body. The opening is stepped so as to define a first shoulder which faces the passage in the body, and the stem is correspondingly stepped to define a second shoulder which faces the first shoulder. Under normal operation of the valve, the shoulders are spaced apart slightly and a sealing ring is interposed therebetween. In the event that the sealing ring fails, the pressure of fluid in the passage presses the shoulder on the stem into contact with the shoulder on the body to create a metal-to-metal seal which prevents the escape of fluid to atmosphere through the opening. To make the seal reliable, the shoulders are shaped so that they contact each other only over the outer periphery of the stem shoulder. For example, the shoulders can be mutually tapered, or one of the shoulders can have a raised rim on its outer periphery.
摘要翻译：球或塞阀包括具有通孔的球或塞，该通孔可在金属体中旋转以控制流体通过体内的通道。球可以通过可旋转地容纳在金属体的开口中的金属杆从主体的外部旋转。开口是阶梯形的，以限定面向主体中的通道的第一肩部，并且杆相应地台阶以限定面向第一肩部的第二肩部。在阀的正常操作下，肩部稍微间隔开，密封环插入其间。在密封环失效的情况下，通道中的流体的压力将杆上的肩部压紧到与身体上的肩部接触以产生金属对金属的密封，其防止流体通过开口泄漏到大气中。为了使密封件可靠，肩部的形状使得它们仅在柄肩的外周上彼此接触。例如，肩部可以是相互锥形的，或者其中一个肩部可以在其外周上具有凸起的边缘。

3. 发明授权

US09296467B1 Pressure test door for use with a fuel tank 有权
标题翻译：用于燃油箱的压力试验门
公开(公告)号：US09296467B1
公开(公告)日：2016-03-29
申请号：US12481037
申请日：2009-06-09
申请人： Justin D. Hollibaugh , William F. Williams , Melissa M. Linscott , Howard J. Tu , Martin D. Reynoldson , James Martin
发明人： Justin D. Hollibaugh , William F. Williams , Melissa M. Linscott , Howard J. Tu , Martin D. Reynoldson , James Martin
IPC分类号： B65D51/16 , B64C3/34 , B64C1/14
CPC分类号： B64C3/34 , B64C1/1446 , B64D37/005 , Y02T50/44
摘要： An apparatus operable to seal an opening in an aircraft fuel tank during a pressure test of the fuel tank is described. The apparatus includes a substantially dome shaped body having a perimeter. The body further includes a rim extending in an orthogonal direction about the perimeter and a flange extending in a normal direction from the rim and about the perimeter. The flange is sized to engage the fuel tank about the opening. The apparatus further includes a sealing gasket proximate an intersection of the rim and the flange, extending completely around the perimeter. The seal is oriented to provide a sealing function between the fuel tank and the body as pressure is increased within the fuel tank.
摘要翻译：描述了在燃料箱的压力测试期间可操作以密封飞机燃料箱中的开口的装置。该装置包括具有周边的大致圆顶形的主体。身体还包括围绕周边沿正交方向延伸的边缘和沿着法线方向从边缘延伸并且围绕周边延伸的凸缘。法兰的尺寸设计成使燃料箱围绕开口接合。该装置还包括靠近边缘和法兰的交叉点的密封垫片，其周边完全延伸。当在燃料箱内的压力增加时，密封件被定向成在燃料箱和主体之间提供密封功能。

4. 发明授权

US4246147A Screenable and strippable solder mask and use thereof 失效
标题翻译：可屏蔽和可剥离的焊接掩模及其用途
公开(公告)号：US4246147A
公开(公告)日：1981-01-20
申请号：US45524
申请日：1979-06-04
申请人： Peter Bakos , Russell E. Darrow , Dennis L. Rivenburgh , William F. Williams
发明人： Peter Bakos , Russell E. Darrow , Dennis L. Rivenburgh , William F. Williams
IPC分类号： H05K3/28 , B23K1/00 , B23K35/22 , H01L21/52 , H05K3/00 , H05K3/34 , B05D1/32 , C08J3/18 , C08K5/54 , C08L91/00
CPC分类号： B23K35/224 , H05K3/0076 , H05K2201/0166 , H05K2201/0209 , H05K2203/0264 , H05K2203/0769 , H05K2203/0783 , H05K3/3452 , Y10T428/263 , Y10T428/264
摘要： A screenable and strippable solder mask composition which contains a polyepoxide or polyimide/amide; a detackifier and a high-temperature resistant filler; and use thereof for protecting predetermined areas on a substrate from the solder deposition.
摘要翻译：包含聚环氧化物或聚酰亚胺/酰胺的可筛选和可剥离的焊接掩模组合物; 防粘剂和耐高温填料; 以及其用于保护衬底上的预定区域与焊料沉积。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式