公开(公告)号：US4531044A

公开(公告)日：1985-07-23

申请号：US474650

申请日：1983-01-24

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: B23K1/005 ,  H05K1/03 ,  H05K3/34 ,  B23K15/00 ,  H01C1/14 ,  H01C1/144

CPC classification number: H05K3/3421 ,  B23K1/0056 ,  B23K2201/40 ,  H05K1/0306 ,  H05K2201/10757 ,  H05K2201/10848 ,  H05K2203/107 ,  H05K3/3494 ,  Y02P70/613

Abstract: A method of soldering electrical lead strands (of a width at least 0.3 inch) to a printed electrical path is disclosed. The path is planted on an alumina ceramic substrate and a solder pad is attached to a portion of the path. A flat surface portion of each lead strand is forced into full interengagement with a pad, a CO.sub.2 defocused laser beam is directed onto the soldering assembly with the beam controlled to have a beam power of at least 100 watts, a beam spot diameter no less than the width of the lead strand and no greater than the width of the pad, and a beam on-time effective to exert a controlled thermal radius on the soldering assembly to reflow only a preselected portion of the pad and effect a solder joint between the pad and strand portion, the joint having a strength of at least 400 grams. The parameters of the beam power, beam spot diameter, and beam on-time are optimally correlated by the following equation: ##EQU1## where: C is the critical thermal radius, a is the Gaussian radius at 1/e.sup.2, ln is logarithm, Tm is the melting temperature of the solder minus the specimen temperature, P is the laser beam power in watts, A is the surface absorptivity of the solder at 10.6 microns, R is the terminal resistance per unit area of the system, tc is the critical time to bring the solder to the Tm temperature, c is the heat capacity of the system.

Abstract translation: 公开了将电引线（宽度至少为0.3英寸）焊接到印刷电路上的方法。 将路径种植在氧化铝陶瓷基板上，并且将焊盘附接到路径的一部分。 每个引线的平坦表面部分被迫与焊盘完全相互接合，二氧化碳散焦的激光束被引导到焊接组件上，光束被控制为具有至少100瓦特的光束功率，光束点直径不小于 引线的宽度并且不大于焊盘的宽度，并且导通时间有效地在焊接组件上施加受控的热半径以仅回流焊盘的预选部分并且实现焊盘之间的焊接接头 和股线部分，该接头具有至少400克的强度。 光束功率，光束直径和光束导通时间的参数通过以下公式进行最佳相关：其中：C是临界热半径，a是1 / e2处的高斯半径，ln是对数， Tm是焊料的熔化温度减去样品温度，P是以瓦特为单位的激光束功率，A是焊料在10.6微米处的表面吸收率，R是系统每单位面积的端电阻，tc是临界值 时间使焊料达到Tm温度，c是系统的热容量。

公开(公告)号：US06402636B1

公开(公告)日：2002-06-11

申请号：US09404048

申请日：1999-09-23

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: A63B5304

CPC classification number: A63B53/04 ,  A63B53/0466 ,  A63B60/54 ,  A63B2053/0416 ,  A63B2209/00

Abstract: A golf club, such as a driver, includes a head designed for reducing spin imparted to a golf ball struck by the club head. The club head has a face portion for contacting a golf ball that is formed of a relatively hard material having a generally slippery characteristic. The golf ball slips on the face portion when a plane of the face portion at a point of contact between the ball and face portion is not generally normal to a direction of travel of the club head. The slippery characteristic may be obtained by forming the face of the club head from a sintered material impregnated with a lubricant such as PTFE. The club head may also include a plastic insert with a self-lubricating filler.

Abstract translation: 诸如驾驶员的高尔夫球杆包括设计用于减少被球杆头撞击的高尔夫球的旋转的头部。 球杆头具有用于接触高尔夫球的面部分，高尔夫球由具有大致光滑特征的相对硬的材料形成。 当球和面部之间的接触点处的面部的平面通常不与球杆头的行进方向垂直时，高尔夫球在面部上滑动。 可以通过从浸渍有诸如PTFE的润滑剂的烧结材料形成球棒头的表面来获得滑动特性。 球杆头还可以包括具有自润滑填料的塑料插入件。

公开(公告)号：US6040550A

公开(公告)日：2000-03-21

申请号：US921292

申请日：1997-08-29

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: B23K26/04 ,  B23K26/28 ,  B23K26/00

CPC classification number: B23K26/0823 ,  B23K26/032 ,  B23K26/04 ,  B23K26/043 ,  B23K26/044 ,  B23K26/123 ,  B23K26/282

Abstract: A laser welding machine includes an arbor for rotating a plurality of bellows diaphragms positioned together in side-by-side relation adjacent the laser. An optical tracker is provided for optically tracking a position of a rotating outer joint of the diaphragms as the arbor rotates. In addition, a low inertia beam steering mechanism is used for directing the laser beam to form a weld in the rotating outer joint responsive to the optical tracker. The laser may be an Nd:YAG, a diode laser, or carbon dioxide laser, for example. The optical tracker preferably includes a solid state camera and an illumination source positioned on opposite sides of the rotating outer joint to capture a shadow image of the joint. The welding machine may further include a processor and associated display operatively connected to the camera and to the beam steering means. The display may be used for displaying the shadow image of the rotating outer joint. The laser beam may be aligned horizontally, and indexing of joints and distance positioning for focusing the laser beam provided by an X-Y table.

Abstract translation: 一种激光焊接机包括用于使与激光器相邻的并排关系定位在一起的多个波纹管膜片的心轴。 提供光学跟踪器，用于在心轴旋转时光学地跟踪隔膜的旋转外接头的位置。 此外，低惯性光束转向机构用于引导激光束，以响应于光学跟踪器在旋转外接头中形成焊缝。 例如，激光可以是Nd：YAG，二极管激光器或二氧化碳激光器。 光学跟踪器优选地包括固态照相机和位于旋转外接头的相对侧上以照射接头的阴影图像的照明源。 焊接机还可以包括可操作地连接到照相机和光束操纵装置的处理器和相关显示器。 显示器可以用于显示旋转外接头的阴影图像。 激光束可以水平对准，并且关节的分度和距离定位用于聚焦由X-Y表提供的激光束。

公开(公告)号：US07211006B2

公开(公告)日：2007-05-01

申请号：US10411882

申请日：2003-04-10

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: A63B53/04

CPC classification number: A63B53/04 ,  A63B53/0466 ,  A63B53/047 ,  A63B60/52 ,  A63B2053/0416 ,  A63B2053/0433 ,  A63B2053/045

Abstract: A golf club includes a golf club shaft and a golf club head connected to the golf club shaft. The golf club head includes a body having a forward surface and a striking member connected to the forward surface of the body. The striking member includes predetermined properties to deflect inwardly during initial contact with a golf ball and recover outwardly as the golf ball moves away substantially synchronized with compression and expansion of the golf ball. In some embodiments, the golf club head may include a spacer or neck connecting opposing medial portions of the body and the striking member. In other embodiments, the striking member may include a first layer and a second underlying layer disposed over the body.

Abstract translation: 高尔夫球杆包括高尔夫球杆杆和连接到高尔夫球杆杆杆的高尔夫球杆头。 高尔夫球杆头包括具有前表面的主体和连接到主体的前表面的撞击构件。 撞击构件包括预定特性，以在与高尔夫球初次接触期间向内偏转，并且随着高尔夫球与高尔夫球的压缩和膨胀基本上同步地移开而向外恢复。 在一些实施例中，高尔夫球杆头可以包括连接主体和撞击构件的相对的内侧部分的间隔件或颈部。 在其他实施例中，打击构件可以包括设置在身体上的第一层和第二下层。

公开(公告)号：US06380510B1

公开(公告)日：2002-04-30

申请号：US09596511

申请日：2000-06-19

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: B23K2628

CPC classification number: B23K26/0823 ,  B23K26/106 ,  B23K26/244 ,  B23K26/28 ,  Y10T29/49877

Abstract: Method and apparatus for welding the inside diameter and the outside diameter of bellows diaphragms for forming a bellows without using chill rings or spacers. This universal welding fixture consists of at least one drive wheel and at least one idler wheel for holding and aligning different size bellows diaphragms. A concentrated heat source such as a laser beam is applied at the edge for joining diaphragms together.

Abstract translation: 用于焊接波纹管隔膜的内径和外径的方法和装置，用于形成波纹管而不使用冷却环或间隔件。 该通用焊接夹具由至少一个驱动轮和至少一个惰轮构成，用于保持和对准不同尺寸的波纹管隔膜。 在边缘处施加诸如激光束的集中热源以将膜片连接在一起。

公开(公告)号：US5827133A

公开(公告)日：1998-10-27

申请号：US845444

申请日：1997-04-25

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: A63B37/00 ,  A63B37/12 ,  A63B37/14

CPC classification number: A63B37/0003 ,  A63B37/0039 ,  A63B37/0076

Abstract: A golf ball having a reduced spin rate is provided for minimizing the tendency of the golf ball to hook or slice in response to a sliding blow from a golf club. The golf ball may have a cover that is constructed to have a slippery surface such that when the club strikes the ball the club slides on the surface rather than imparting spin to the ball. In addition, the cover may be isolated from the inner core of the golf ball by an intervening lubricating layer which allows the cover to slip on the core so that any spin imparted to the cover is only minimally transferred to the core thereby minimizing spin of the golf ball. The golf ball may also be constructed with a fluid core either of a liquid or gelatinous substance which will not respond to any initial spin imparted to the outer cover of the golf ball and will thereby retard the spin rate of the ball.

Abstract translation: 提供具有降低的旋转速率的高尔夫球，用于最小化高尔夫球响应于来自高尔夫球杆的滑动打击而钩住或切割的倾向。 高尔夫球可以具有构造成具有光滑表面的盖，使得当球杆撞击球时，球杆在表面上滑动，而不是给球旋转。 此外，盖可以通过中间的润滑层与高尔夫球的内芯隔离，这允许盖在芯上滑动，使得施加到盖的任何旋转仅被最小程度地转移到芯部，从而最小化 高尔夫球。 高尔夫球也可以由液体或凝胶状物质的流体芯构成，其不会对赋予高尔夫球的外盖的任何初始旋转起反应，从而将延迟球的旋转速率。

公开(公告)号：US06974392B2

公开(公告)日：2005-12-13

申请号：US10122873

申请日：2002-04-15

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: A63B53/04

CPC classification number: A63B53/04 ,  A63B2053/0416 ,  A63B2053/0425 ,  A63B2209/00 ,  A63B2209/02

Abstract: A golf club having a ball-contacting surface formed by a very thin layer of lubricant for reducing the spin imparted to a golf ball. By maintaining the thickness of lubricant exposed at the ball-contacting surface to be less than 20 microns, the integrity of the lubricant layer is improved and the mechanical locking effect between the soft lubricant and the golf ball is minimized. The thin lubricating layer may be supported by a reinforcing structure to convey the force of the golf ball impact to the club head without indentation of the thin lubricating layer.

Abstract translation: 一种高尔夫球杆，其具有由非常薄的润滑剂层形成的球接触表面，用于减少赋予高尔夫球的旋转。 通过将在球接触表面露出的润滑剂的厚度保持为小于20微米，润滑剂层的完整性得到改善，并且软润滑剂和高尔夫球之间的机械锁定效果最小化。 薄的润滑层可以由加强结构支撑，以将高尔夫球冲击的力传递到球杆头而没有薄润滑层的压痕。

公开(公告)号：US06262387B1

公开(公告)日：2001-07-17

申请号：US09428362

申请日：1999-10-28

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: B23K2620

CPC classification number: B23K26/106 ,  B23K26/0823 ,  B23K26/244 ,  B23K26/28

Abstract: A laser welding apparatus is for laser welding an inner joint between first and second bellows diaphragms. The apparatus preferably includes a first clamp having an opening therein and having portions adjacent the opening defining a first clamping surface; and a second clamp having portions defining a second clamping surface, and wherein the first and second clamps are relatively movable to clamp the first and second metal bellows diaphragms together between the first and second clamping surfaces so that the openings in the bellows diaphragms are generally aligned with the opening in the first clamp. The apparatus also preferably includes a laser for generating a laser beam, and a beam directing element positioned in the opening of the first clamp and the openings of the first and second bellows diaphragms for directing the laser beam to weld the inner joint between the first and second bellows diaphragms. The opening of the first clamp and the recess of the second clamp are preferably-sized to expose a predetermined radially inwardly extending portion of the first and second bellows diaphragms to facilitate welding with the laser beam. In addition, the apparatus also preferably includes a rotating drive arrangement for relatively rotating the first and second clamps, and the laser beam directing means to weld the inner joint. A nonmetallic spacer may be positioned between the bellows diaphragms.

Abstract translation: 激光焊接设备用于激光焊接第一和第二波纹管隔膜之间的内接头。 该装置优选地包括其中具有开口的第一夹具，并且具有邻近开口的部分限定第一夹紧表面; 以及第二夹具，其具有限定第二夹紧表面的部分，并且其中所述第一和第二夹具可相对移动以将所述第一和第二金属波纹管隔膜在所述第一和第二夹紧表面之间夹紧在一起，使得所述波纹管隔膜中的开口大致对准 在第一个夹子中打开。 该装置还优选地包括用于产生激光束的激光器和定位在第一夹具的开口中的光束引导元件以及第一和第二波纹管光阑的开口，用于引导激光束焊接第一和第 第二波纹管隔膜。 优选地，第一夹具的开口和第二夹具的凹部的尺寸设定为暴露第一和第二波纹管隔膜的预定径向向内延伸的部分，以便于用激光束焊接。 此外，该装置还优选地包括用于使第一和第二夹具相对旋转的旋转驱动装置和用于焊接内部接头的激光束引导装置。 非金属间隔件可以位于波纹管隔膜之间。

公开(公告)号：US5681490A

公开(公告)日：1997-10-28

申请号：US529679

申请日：1995-09-18

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: B23K26/03 ,  B23K26/00

CPC classification number: B23K26/032 ,  B23K26/034

Abstract: A method is provided for monitoring of the progression and the quality of laser material processing. Sensors and detectors are placed in the vicinity of reaction area to capture the signatures of material processing. The signals include light, temperature, sound, gas, smoke, vapor, particles, etc. emanating from the reaction area. The intensity and the timing of certain signals indicate the stages of the processing and the processing quality. One example of this invention is the use of photodiode sensors to monitor the progression of laser spot welding of a certain electronic component. Three photodiode sensors are used to monitor the laser pulse, the reflected beam, and the transmitted beam. A computer analyzes these signals in real time to determine the progressive stages of the laser welding process and the expected weld quality.

Abstract translation: 提供了一种用于监测激光材料处理进度和质量的方法。 传感器和检测器放置在反应区附近，以捕获材料处理的签名。 信号包括从反应区域发出的光，温度，声音，气体，烟雾，蒸汽，颗粒等。 某些信号的强度和时间表示处理的阶段和处理质量。 本发明的一个示例是使用光电二极管传感器来监测某个电子部件的激光点焊的进展。 三个光电二极管传感器用于监测激光脉冲，反射光束和透射光束。 计算机实时分析这些信号，以确定激光焊接过程的进行阶段和预期的焊接质量。

公开(公告)号：US06217464B1

公开(公告)日：2001-04-17

申请号：US09152301

申请日：1998-09-14

Applicant: Dale U. Chang

Inventor： Dale U. Chang

IPC: A63B3712

CPC classification number: A63B37/0003 ,  A63B37/0076

Abstract: A golf ball having a lubricating material on its surface for reducing the spin imparted by a striking golf club. The lubricating material may be a dry lubricant coating or it may be a lubricating material forming part of the cover of the golf ball.

Abstract translation: 一种在其表面上具有润滑材料的高尔夫球，用于减少由打击高尔夫球杆施加的旋转。 润滑材料可以是干润滑剂涂层，也可以是形成高尔夫球盖的一部分的润滑材料。