公开(公告)号：USD352845S

公开(公告)日：1994-11-29

申请号：US1549

申请日：1992-11-18

申请人： John Hellwig ,  David M. Stevenson ,  Johnny N. Lim

设计人： John Hellwig ,  David M. Stevenson ,  Johnny N. Lim

公开(公告)号：US5428928A

公开(公告)日：1995-07-04

申请号：US263418

申请日：1994-06-21

申请人： John Hellwig ,  David M. Stevenson ,  Lorie Marangoni

发明人： John Hellwig ,  David M. Stevenson ,  Lorie Marangoni

IPC分类号： A47B13/00 ,  A47B13/08 ,  A47B21/00 ,  A47B83/00 ,  E04B2/74

CPC分类号： A47B21/06 ,  A47B13/003 ,  A47B83/001 ,  E04B2/7416 ,  A47B2021/066 ,  A47B2037/005 ,  A47B2200/0013 ,  A47B2200/0027 ,  A47B2200/01 ,  E04B2/7401 ,  E04B2002/7483

摘要： The present invention relates to a combined desking and panelling system which provides an effective means for subdividing office space and defining work areas. Work surfaces are provided and can be independently supported or supported by the panelling system. Power and communication wires and cables are distributed through and between the desking and panelling systems.

摘要翻译： 本发明涉及组合式桌面和镶板系统，其提供了用于细分办公空间和定义工作区域的有效手段。 提供工作表面，并可以由镶板系统独立支持或支持。 电力和通信电线和电缆分布在桌面和镶板系统之间。

公开(公告)号：US4380829A

公开(公告)日：1983-04-19

申请号：US264499

申请日：1981-05-18

申请人： David M. Stevenson ,  Gale L. Flanders

发明人： David M. Stevenson ,  Gale L. Flanders

IPC分类号： H03D7/14 ,  H03D9/06 ,  H04B1/26 ,  H03H7/42

CPC分类号： H03D9/0633 ,  H03D2200/0013 ,  H03D2200/0023 ,  H03D7/1408

摘要： A simplified, compact, flat microwave frequency converter assembly utilizes a flat quad diode bridge, and has two pairs of opposed flat conductors, each with a respective one of the opposed conductors on a respective side of a flat dielectric substrate . Each of the pair extends orthogonally from their intersection at the bridge. The bridge is connected at opposite corners thereof to adjacent ends of the conductors at the intersection on a first side of the substrate. These first-side conductors are in electrical continuity with a conductive layer extending about the periphery of the substrate on the first side thereof. This layer is, in turn, in contact with a conductive carrier plate by means of which the layer is grounded. On the second side of the substrate, each of the pair of capacitors affixed to the substrate is connected between respective opposite corners of the bridge, and the adjacent ends of the conductors of one of said pairs. In this manner, two pairs of input baluns are provided to accept, for example, an input RF signal, and a local oscillator signal. An output conductor pair is provided, each extending outwardly on the substrate first face from one of the bridge opposite corners to terminals between the bridge and conductive layer, each then continuing on the second face from the terminals to a junction adjacent the substrate edge, and serving as an output from which a heterodyned signal may be obtained.

摘要翻译： 简化的，紧凑的扁平微波变频器组件利用平面四极二极管桥，并且具有两对相对的扁平导体，每对导体在扁平电介质基板的相应侧上具有相应的一个导体。 对中的每一对从桥梁的交叉点正交延伸。 该桥在其相对的角部处连接到基板的第一侧上的交叉点处的导体的相邻端。 这些第一侧导体与在其第一侧上的衬底的周边延伸的导电层电连通。 该层又与导电载体板接触，通过该导电载体板层接地。 在基板的第二面上，固定在基板上的一对电容器中的每一个连接在桥的相应的相对的拐角之间，以及所述对之一的导体的相邻端。 以这种方式，提供两对输入巴伦以接受例如输入RF信号和本地振荡器信号。 提供一个输出导体对，每一个在基板第一面上向外延伸，从第一面到桥接器和导电层之间的端子，每个端子在第二面上从端子延伸到邻近基板边缘的结，以及 用作可以从其获得外差信号的输出。