公开(公告)号：US4941905A

公开(公告)日：1990-07-17

申请号：US168552

申请日：1988-03-04

申请人： Pundi L. Narasimham

发明人： Pundi L. Narasimham

IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/016

CPC分类号： C03B37/016 ,  C03B37/01446 ,  C03B37/01486 ,  Y02P40/57 ,  Y10S65/901

摘要： An optical preform is prepared first by depositing soot about a glass subate rod (22) to form a boule. Then the soot boule is sintered to consolidate the material and provide a preform from which optical fiber is drawn. The boule is relatively large so that the resulting preform is capable of providing more optical fiber than those used in the past. In order to be able to sinter successfully the enlarged boule, microwave energy from a furnace (60) is coupled to the glass rod so that the sintering proceeds from the rod radially outwardly thereby allowing gases readily to escape and rendering the process highly efficient.

公开(公告)号：US4901189A

公开(公告)日：1990-02-13

申请号：US211302

申请日：1988-06-24

申请人： Glenn A. Merriman ,  Michael E. Szymanski

发明人： Glenn A. Merriman ,  Michael E. Szymanski

IPC分类号： H01R9/24 ,  H01T4/06

CPC分类号： H01R9/2441 ,  H01T4/06 ,  Y10T29/49171 ,  Y10T29/4922

摘要： A terminal block (20) includes a plurality of wells each having a protector32) disposed therein and each having a bore which communicates with a U-shaped terminal (60) so that a portion of the protector extends through the bore into engagement with a bade (66) of the terminal. Tangs (68--68) of each terminal depend downwardly. Also, the terminal block includes a plurality of terminal posts (62--62) each having a spade (69) depending therefrom. A first plastic material (70) encapsulates the base and innermost portions of each U-shaped terminal and post. Individual conductors of a pair in a cable (50) extend to a depending tang of a terminal and to a tang of an associated terminal. A strap wire interconnects the other depending tang of each U-shaped terminal to a spade of an associated terminal post. A second plastic material encapsulates the wiring and the outermost portions of the U-shaped terminals and of the spades of the terminal posts. In making this terminal block, the use of a two step plastic encapsulation process allows the terminals and terminal posts to be held in position with wiring exposed during electrical tests. If the test results are acceptable, the remaining portions of the U-shaped terminals and terminal posts are encapsulated with the second plastic material. If the test results are not acceptable, defects are corrected and then the other portions are encapsulated with the second plastic material.

摘要翻译： 端子块（20）包括多个井，每个井具有设置在其中的保护器（32），每个孔具有与U形端子（60）连通的孔，使得保护器的一部分延伸穿过孔与 终点站（66）。 每个终端的唐（68-68）向下依次。 而且，端子块包括多个端子柱（62-62），每个端子柱具有从其垂下的铲形（69）。 第一塑料材料（70）封装每个U形端子和柱的基部和最内部分。 电缆（50）中的一对的单个导体延伸到终端的依赖性的脚和相关终端的一个脚。 带状线将每个U形端子的另一个相对的柄脚与相关联的端子柱的铲子互连。 第二塑料材料封装U形端子和端子柱的黑线的布线和最外部分。 在制造该端子块时，使用两步塑料封装工艺允许端子和端子柱在电气测试期间被接线而保持就位。 如果测试结果是可接受的，则U形端子和端子柱的其余部分用第二塑料材料封装。 如果测试结果不可接受，则校正缺陷，然后用第二塑料材料封装其它部分。

公开(公告)号：US4848687A

公开(公告)日：1989-07-18

申请号：US208196

申请日：1988-06-17

申请人： Daryl L. Myers ,  James G. Wright, Jr.

发明人： Daryl L. Myers ,  James G. Wright, Jr.

IPC分类号： B65H67/056 ,  G02B6/44

CPC分类号： B65H67/056 ,  G02B6/4457

摘要： Methods of and apparatus for winding strand such as optical fibers on altate spools and for storing and protecting from damage coiled end portions of the strand to be wound on the spools in which the coils are clamped laterally of the coils with forces applied parallel to the axis of the coils. The methods and apparatus of the invention may be used for urging portions of the strand being fed to the spools and associated strand storage and clamping devices against the peripheral surfaces thereof to aid in the transfer of the distribution of the strand from one spool to the other spool.

摘要翻译： 用于将线束（例如光纤）缠绕在备用线轴上的方法和装置，并用于存储和保护以免被缠绕在线圈上的线圈的端部部分损伤线圈，其中线圈被侧向地夹在线圈上的力平行于轴线施加的力 的线圈。 本发明的方法和装置可以用于将被馈送到线轴和相关联的线束存储和夹紧装置的部分的部分推压到其周边表面，以帮助将线材的分配从一个线轴转移到另一个线轴 线轴。

公开(公告)号：US4815813A

公开(公告)日：1989-03-28

申请号：US115459

申请日：1987-10-30

申请人： Candido J. Arroyo ,  Harold P. Debban, Jr. ,  Walter J. Paucke

发明人： Candido J. Arroyo ,  Harold P. Debban, Jr. ,  Walter J. Paucke

IPC分类号： H01B7/282 ,  G02B6/44

CPC分类号： G02B6/4492

摘要： A communications cable comprising a core of at least one transmission media and a plastic jacket includes provisions for preventing the movement of water within the cable. A water blockable yarn (33) or strip (35) is interposed between the core and the jacket (32) and extends either linearly along the cable or is wrapped helically about a portion of the sheath system. In any plane along the cable which is transverse to the longitudinal axis of the cable, the yarn or the strip extends about an insubstantial portion of an inner periphery of the cable. As a result, any desired bond between the jacket and an underlying element of the cable sheath system is discontinuous for only an insignificant portion of the peripheral surface of contact. The yarn may be one which has been treated with a superabsorbent material whereas the strip may comprise a substrate strip which has been impregnated with a superabsorbent material which upon contact with water swells and inhibits the movement of water within the cable.

公开(公告)号：US4807961A

公开(公告)日：1989-02-28

申请号：US035953

申请日：1987-04-08

申请人： Francis J. Mullin ,  William C. Reed ,  Christian Scholly

发明人： Francis J. Mullin ,  William C. Reed ,  Christian Scholly

IPC分类号： G02B6/00 ,  G02B6/44 ,  G02B6/46 ,  H02G3/38 ,  H04H20/69 ,  H04M1/00 ,  H04M1/738 ,  G02B6/28 ,  G02F1/00

CPC分类号： H04H20/69 ,  G02B6/4401 ,  G02B6/443 ,  G02B6/4434 ,  G02B6/4466

摘要： A communications distribution system (20) provides service for local business and residential premises with fewer splice points required and less waste than encountered in prior art systems. The system includes a feeder distribution interface (60) which is served by a feeder cable or by a carrier system and at least one group interface (61) which is disposed to serve customers' premises. A backbone cable segment (62) extends from the feeder distribution interface to a single group interface and is capable of providing service to a plurality of customer premises. Each customer's premises is served by a single distribution service cable (66) which is connected to a backbone cable segment at a group interface. The single distribution service cables for an area may extend radially or laterally from a group interface.

公开(公告)号：US4778099A

公开(公告)日：1988-10-18

申请号：US129637

申请日：1987-12-07

申请人： David R. Dines

发明人： David R. Dines

IPC分类号： B23K1/20 ,  B23K3/00 ,  H01R43/02 ,  B23K31/02 ,  H05K3/34

CPC分类号： H01R43/0256 ,  B23K1/20 ,  B23K3/00 ,  B23K2201/42

摘要： The present invention is directed to a method for soldering each of a plurality of members (40), arranged in one or more parallel rows, to a separate one of a plurality of metallized pads (42) on a substrate (10), each pad being contiguous with a corresponding member. The method is initiated by tilting the substrate so that one end of each row of members and the metallized pads contiguous therewith are at a higher elevation than the other end. A stream (80) of molten solder and a dripping stream (88) of flux droplets are directed onto the substrate into the regions where the members are contiguous with the metallized pads. Simultaneously, the substrate is displaced relative to the streams along a path (96) inclined with respect to the horizontal and parallel to the rows of members so that the members and the metallized pads are successively coated with solder and then flux. The inclination of the substrate is such that the solder and flux flow downwardly, under gravity, past a successive one of the members and metallized pads. The force of gravity on the solder, together with the presence of the flux, is sufficient to break the surface tension of the solder between adjacent members to prevent a solder bridge therebetween.

摘要翻译： 本发明涉及一种用于将以一个或多个平行排布置的多个构件（40）中的每一个焊接到衬底（10）上的多个金属化焊盘（42）中的单独一个的方法，每个衬垫 与对应的成员相邻。 该方法是通过使衬底倾斜而引起的，使得每排构件的一端和与其相邻的金属化衬垫处于比另一端更高的高度。 将熔融焊料的流（80）和焊剂液滴的滴流（88）引导到基板上，使其与金属化焊盘邻接。 同时，衬底相对于流沿着相对于水平方向倾斜且平行于构件行的路径（96）移位，使得构件和金属化衬垫连续地涂覆有焊料，然后焊剂。 衬底的倾斜度使得焊料和焊剂在重力作用下向下流过连续的一个构件和金属化焊盘。 焊料上的重力与助焊剂的存在一起足以破坏相邻构件之间的焊料的表面张力，以防止其间的焊接桥。

公开(公告)号：US4774101A

公开(公告)日：1988-09-27

申请号：US940464

申请日：1986-12-10

申请人： John E. Harris ,  Walter H. Rees, Jr.

发明人： John E. Harris ,  Walter H. Rees, Jr.

IPC分类号： C23C18/16 ,  B05D1/04

CPC分类号： C23C18/405 ,  C23C18/1617 ,  C23C18/1683

摘要： An apparatus coupled to an electroless copper plating bath for analyzing controlling, on-line, the primary constituents of the bath is described. The apparatus detects and controls not only the copper concentration of the bath by optical means, but the concentrations of hydroxyl ion, formaldehyde reducing agent and cyanide ion as well.

摘要翻译： 描述了耦合到化学镀铜浴的装置，用于在线分析和控制浴的主要成分。 该装置不仅通过光学方式检测和控制浴的铜浓度，而且还检测和控制羟基离子，甲醛还原剂和氰化物离子的浓度。

公开(公告)号：US4759667A

公开(公告)日：1988-07-26

申请号：US796286

申请日：1985-11-08

申请人： Charles R. Brown

发明人： Charles R. Brown

IPC分类号： B23B51/02

CPC分类号： B23B51/02 ,  B23B2251/04 ,  B23B2251/18 ,  Y10T408/909 ,  Y10T408/9097

摘要： A four surface point type drill has its primary clearance faces configured so that their circumferential width decreases as the longitudinal axis of the drill is approached. The trailing edge and cutting edge of the primary clearance face surfaces substantially intersect each other at a point where they both intersect the opposite ends of the chisel edge of the drill point. The chisel edge itself is totally defined by a line formed by the intersection of the two secondary clearance face surfaces of the drill point. This new improved drill point geometry permits the use of reduced primary and secondary clearance face relief angles at the drill point which improves the structural integrity of the cutting edge of the drill and hence reduces chipping at the cutting edge.

摘要翻译： 四面表面钻头的主要间隙面构造成使得它们的圆周宽度随着钻头的纵向轴线的接近而减小。 主间隙面表面的后缘和切割刃在它们都与钻尖的凿边缘的相对端相交的点处基本相交。 凿子边缘本身完全由钻头的两个二次间隙面表面的相交线形成。 这种新的改进的钻孔几何形状允许在钻头处使用减小的初级和次级间隙面浮雕角度，这提高了钻头的切割刃的结构完整性，并因此减少了切削刃处的切屑。

公开(公告)号：USD296693S

公开(公告)日：1988-07-12

申请号：US722541

申请日：1985-04-12

申请人： Charles B. Davidson

设计人： Charles B. Davidson

公开(公告)号：US4740261A

公开(公告)日：1988-04-26

申请号：US912029

申请日：1986-09-25

申请人： Karen K. Moser

发明人： Karen K. Moser

IPC分类号： B29C47/02 ,  B29C47/28 ,  H01B13/24

CPC分类号： B29C47/28 ,  B29C47/0016 ,  B29C47/021 ,  B29C47/027 ,  H01B13/24

摘要： An extrusion apparatus for providing a plastic jacket (32) about an advang cable core (23) which has been wrapped with a laminated metallic foil (76) includes dual core tubes. An inner one (86) of the core tubes extends into an extrusion chamber and has a free end portion (89) spaced from and disposed concentrically within an end portion (94) of an outer core tube (93). The foil, which is relatively cool and which functions as a shield (26), engages an inner wall of the inner core tube. This causes an overlapped longitudinal seam (78) of the shield to be maintained during the passage of the shielded cable core through the inner core tube. As a result, molten plastic material which is to form the jacket (32) is isolated thermally from the relatively cool shield and is prevented from being cooled prematurely prior to its being tubed about the advancing cable core.

摘要翻译： 用于提供围绕已经被层压金属箔（76）包裹的前进电缆芯（23）的塑料外壳（32）的挤出装置包括双芯管。 芯管中的内部（86）延伸到挤压室中，并且具有与外芯管（93）的端部（94）间隔开并同心设置在外芯管（93）的端部（94）内的自由端部（89）。 相对冷却并且用作屏蔽件（26）的箔与内芯管的内壁接合。 这导致屏蔽层的重叠的纵向接缝（78）在屏蔽电缆芯通过内芯管的过程中被保持。 结果，用于形成护套（32）的熔融塑料材料与相对较冷的屏蔽体隔热隔离，并且防止其在被推入电缆芯之前被过早地冷却。