公开(公告)号：US06205160B1

公开(公告)日：2001-03-20

申请号：US09159735

申请日：1998-09-24

Applicant: David A. Grewell

Inventor： David A. Grewell

IPC: H01S304

CPC classification number: H01S5/02264 ,  H01S5/02252 ,  H01S5/02469 ,  H01S5/4018 ,  H01S5/4043

Abstract: A laser diode array comprises a plurality of substantially parallel spaced metal plates, each plate having a laser diode mounted upon one side of the plate. The plates are supported electrically insulated from one another on mounting means. The diodes, connected electrically in series, when energized illuminate an oblong workpiece area disposed a certain distance opposite the array. In a preferred embodiment, the mounting means comprises flexible rod means passing through respective apertures of the plates, thus enabling the array to assume a curved configuration, thereby enabling the array to illuminate a straight as well as a curved oblong workpiece area.

Abstract translation: 激光二极管阵列包括多个基本上平行的间隔开的金属板，每个板具有安装在板的一侧上的激光二极管。 这些板在安装装置上彼此电绝缘。 当通电时，串联电连接的二极管照亮与阵列相对一定距离的长方形工件区域。 在优选实施例中，安装装置包括穿过板的相应孔的柔性杆装置，从而使得阵列呈现弯曲构型，从而使阵列能够照亮直线以及弯曲的长圆形工件区域。

公开(公告)号：US5658408A

公开(公告)日：1997-08-19

申请号：US506104

申请日：1995-07-24

Applicant: Jeffrey L. Frantz ,  David A. Grewell

Inventor： Jeffrey L. Frantz ,  David A. Grewell

IPC: B06B1/02 ,  B29C65/00 ,  B29C65/08 ,  B29C65/60 ,  C08F214/18 ,  G10K11/02 ,  B32B31/00

CPC classification number: B06B1/023 ,  B06B1/0246 ,  B06B1/0253 ,  B29C65/08 ,  B29C65/606 ,  B29C65/7841 ,  B29C66/0242 ,  B29C66/1122 ,  B29C66/1142 ,  B29C66/21 ,  B29C66/30223 ,  B29C66/41 ,  B29C66/524 ,  B29C66/71 ,  B29C66/7212 ,  B29C66/7392 ,  B29C66/73921 ,  B29C66/81427 ,  B29C66/8322 ,  B29C66/92443 ,  B29C66/92921 ,  B29C66/9516 ,  B29C66/9517 ,  B29C66/9592 ,  C08F214/184 ,  G10K11/025 ,  B06B2201/72 ,  B29C2793/00 ,  B29C65/8215 ,  B29C65/8253 ,  B29C66/729 ,  B29C66/73772 ,  B29C66/73776 ,  B29C66/81417 ,  B29C66/91 ,  B29C66/94 ,  B29C66/949

Abstract: A method of welding two thermoplastic workpieces (W) together along a predetermined weld line during a weld cycle utilizing a high frequency vibration sonic or ultrasonic welding apparatus. This welding apparatus includes an electroacoustic transducer (18) which transmits such vibrations to a horn (19) which is dimensioned to be resonant with the horn being brought into forced engagement with at least one of the workpieces to be welded. The method comprising the steps of bringing the workpieces into bearing relation against one another along the weld line. Then the electroacoustic transducer is energized so as to resonate the horn with a desired motional amplitude. Forceful contact is established between the horn and one of the workpieces. Then, the forceful contact between the horn and the one workpiece is maintained throughout the weld cycle. The motional amplitude of the horn is varied in accordance with a desired motional amplitude profile.

Abstract translation: 在利用高频振动声波或超声波焊接装置的焊接循环期间，沿着预定的焊接线将两个热塑性工件（W）焊接在一起的方法。 该焊接装置包括将这种振动传递到喇叭（19）的电声换能器（18），所述喇叭（19）的尺寸被设计成与所述喇叭共振，使所述喇叭与被焊接的至少一个工件强制接合。 该方法包括以下步骤：沿着焊接线将工件彼此保持轴承关系。 然后电声换能器通电，以便以期望的运动幅度谐振喇叭。 在喇叭和其中一个工件之间建立有力的接触。 然后，在整个焊接周期内保持喇叭和一个工件之间的有力接触。 喇叭的运动振幅根据期望的运动幅度曲线而变化。

公开(公告)号：US5949959A

公开(公告)日：1999-09-07

申请号：US890322

申请日：1997-07-09

Applicant: Donald C. Lovett ,  David A. Grewell

Inventor： Donald C. Lovett ,  David A. Grewell

IPC: B29C35/08 ,  B29C65/14 ,  F21V9/12

CPC classification number: B29C66/8181 ,  B29C65/1435 ,  B29C65/148 ,  B29C65/1496 ,  B29C66/45 ,  B29C66/73921 ,  B29C66/80 ,  B29C66/952 ,  B29C2035/0822 ,  B29C65/1412 ,  B29C66/71 ,  B29K2025/00 ,  B29K2069/00 ,  B29K2101/12

Abstract: A filter for absorbing electromagnetic radiation which is used in heating a welding zone wherein a first part is joined to a second part. The filter includes a solid material for absorbing undesired wavelengths of radiation from a heating source before the radiation reaches the welding zone. The filter also has a housing which contains a chamber within which a fluid is placed. The fluid cools the solid material and also may absorb undesired wavelengths of radiation from the heating source before the radiation reaches the welding zone. A heat exchanger is connected to the filter in order to cool the fluid during the filtering process.

公开(公告)号：US5788791A

公开(公告)日：1998-08-04

申请号：US674905

申请日：1996-07-03

Applicant: David A. Grewell

Inventor： David A. Grewell

IPC: B29C65/06 ,  B23K20/10 ,  B29C65/00 ,  B29C65/08 ,  B32B31/20 ,  G06F19/00

CPC classification number: B29C66/92211 ,  B23K20/10 ,  B29C65/08 ,  B29C66/73921 ,  B29C66/8242 ,  B29C66/8322 ,  B29C66/847 ,  B29C66/9231 ,  B29C66/92445 ,  B29C66/9261 ,  B29C66/9292 ,  B29C66/92921 ,  B29C66/961 ,  B29C66/94 ,  B29C66/9516 ,  B29C66/9592 ,  B29K2101/12

Abstract: For accurately determining, in real time, the collapse of a thermoplastic workpiece processed in a press, such as an ultrasonic welding apparatus or a vibration welding apparatus, a two-phase method is used. In the calibration phase signals are generated which are responsive to the yielding or displacement of the movable press portion relative to the substantially stationary portion arising from forced engagement of the workpiece within the press. The force responsive displacement value is stored. In the subsequent workpiece processing phase, when the workpiece collapses due to the softening and flowing of thermoplastic material as the workpiece is coupled to vibrations, the previously stored force responsive displacement value is recalled as a correction signal and subtracted from the newly obtained displacement signal related to the same force. The result of the subtraction is a true on-line signal indicative of the collapse of the workpiece as it occurs.

Abstract translation: 为了实时准确地确定在诸如超声波焊接装置或振动焊接装置的冲压机中加工的热塑性工件的塌陷，使用两相方法。 在校准阶段，产生信号，其响应于活动压榨部相对于基本上静止的部分的屈服或位移，这是由于工件在压机内的强制接合而产生的。 存储力响应位移值。 在随后的工件加工阶段，当工件由于工件被耦合到振动时由于热塑性材料的软化和流动而塌陷时，先前存储的力响应位移值被调回为校正信号，并从新获得的位移信号中减去 同样的力量。 减法的结果是一个真实的在线信号，表示工件发生时的塌陷。

公开(公告)号：US5313034A

公开(公告)日：1994-05-17

申请号：US821981

申请日：1992-01-15

Applicant: Robert A. Grimm ,  David A. Grewell ,  Marc St. John

Inventor： Robert A. Grimm ,  David A. Grewell ,  Marc St. John

IPC: B23K13/02 ,  B29C65/34 ,  B29C65/36

CPC classification number: B29C65/3636 ,  B23K13/02 ,  B29C65/344 ,  B29C65/3444 ,  B29C65/3448 ,  B29C65/3468 ,  B29C65/364 ,  B29C65/3644 ,  B29C65/3668 ,  B29C65/3684 ,  B29C65/4815 ,  B29C66/1122 ,  B29C66/43 ,  B29C66/73921 ,  B29C66/80 ,  B29C66/8181 ,  B29C66/836 ,  B29C65/3476 ,  B29C65/3492 ,  B29C65/3676 ,  B29C66/71 ,  B29C66/7212 ,  B29C66/729 ,  B29C66/7292 ,  B29C66/7394 ,  B29C66/81831 ,  B29C66/81871

Abstract: A process for obtaining long, continuous, thermoplastic welds on large structures. A series of tabs are used in pairs and especially in alternating, overlapping pairs to obtain resistance heating of a strip material placed in the bond line. The resistance of the tabs is less than that of the strip material. Conducting braid-tubes afford continuous welding when the bond line is curved. Alternatively, an electromagnetic field is used to take advantage of the induction heating. A wide susceptor is used to weld a current conducting substrate while avoiding bulk heating of the substrate. The unexpected property of current-conducting braid-tube susceptors, in which induction heating takes place at the center rather than at the edges of a flattened braid-tube susceptor, is used to obtain long continuous curved welds.

Abstract translation: 一种在大型结构上获得长，连续，热塑性焊接的方法。 成对使用一系列突片，特别是在交替的，重叠的对中，以获得放置在接合线中的条带材料的电阻加热。 突片的阻力小于带材的阻力。 当接合线弯曲时，导线编织管提供连续焊接。 或者，使用电磁场来利用感应加热。 使用宽的感受体来焊接导电基板，同时避免基板的大量加热。 使用导电编织管感应器的意想不到的性能，其中感应加热发生在中心而不是平坦的编织管基座的边缘处，以获得长的连续弯曲焊缝。

公开(公告)号：US06528755B2

公开(公告)日：2003-03-04

申请号：US09832306

申请日：2001-04-10

Applicant: David A. Grewell ,  Justin R. Bickford ,  Donald C. Lovett ,  Paul A. Rooney

Inventor： David A. Grewell ,  Justin R. Bickford ,  Donald C. Lovett ,  Paul A. Rooney

IPC: B23K2620

CPC classification number: B29C65/1664 ,  B23K26/035 ,  B23K26/06 ,  B23K26/064 ,  B23K26/073 ,  B29C65/1612 ,  B29C65/1616 ,  B29C65/1635 ,  B29C65/1654 ,  B29C65/1667 ,  B29C65/1674 ,  B29C65/1687 ,  B29C66/1122 ,  B29C66/301 ,  B29C66/3472 ,  B29C66/41 ,  B29C66/43 ,  B29C66/7392 ,  B29C66/73921 ,  B29C2035/0822 ,  G02B6/4203 ,  G02B6/4296

Abstract: The present invention is directed to a method and apparatus using a light guide for directing a laser beam to a weld zone. The light guide includes an entrance end, an exit end and a flexible body therebetween. The entrance end of the light guide is operatively coupled to a laser source such as a diode and is adapted to receive and communicate the laser radiation through the light guide. The light guide is formed of a flexible material to permit the exit end of the light guide to be spaced from and aligned with complex two-dimensional and three-dimensional weld zone configurations. The internal reflection of the light guide contains the laser radiation therein as it passes from the entrance end and through the exit end of the light guide. The light guide and corresponding methods of welding parts permit laser welding of complex geometric configurations.

公开(公告)号：US6064798A

公开(公告)日：2000-05-16

申请号：US350590

申请日：1999-07-09

Applicant: Donald C. Lovett ,  David A. Grewell

Inventor： Donald C. Lovett ,  David A. Grewell

IPC: B29C35/08 ,  B29C65/14 ,  F21V9/00

CPC classification number: B29C66/8181 ,  B29C65/1435 ,  B29C65/148 ,  B29C65/1496 ,  B29C66/45 ,  B29C66/73921 ,  B29C66/80 ,  B29C66/952 ,  B29C2035/0822 ,  B29C65/1412 ,  B29C66/71 ,  B29K2025/00 ,  B29K2069/00 ,  B29K2101/12

Abstract: A filter for absorbing electromagnetic radiation which is used in heating a welding zone wherein a first part is joined to a second part. The filter includes a solid material for absorbing undesired wavelengths of radiation from a heating source before the radiation reaches the welding zone. The filter also has a housing which contains a chamber within which a fluid is placed. The fluid cools the solid material and also may absorb undesired wavelengths of radiation from the heating source before the radiation reaches the welding zone. A heat exchanger is connected to the filter in order to cool the fluid during the filtering process.

Abstract translation: 一种用于吸收电磁辐射的过滤器，其用于加热焊接​​区域，其中第一部分连接到第二部分。 过滤器包括用于在辐射到达焊接区之前从加热源吸收不期望的波长的辐射的固体材料。 过滤器还具有壳体，该壳体包含容纳流体的腔室。 流体冷却固体材料，并且还可以在辐射到达焊接区域之前吸收来自加热源的不期望的波长的辐射。 过滤器连接有热交换器，以便在过滤过程中冷却流体。

公开(公告)号：US5855706A

公开(公告)日：1999-01-05

申请号：US848683

申请日：1997-04-29

Applicant: David A. Grewell

Inventor： David A. Grewell

IPC: B06B1/02 ,  B29C65/00 ,  B29C65/08 ,  B29C65/60 ,  C08F214/18 ,  G10K11/02 ,  B32B31/00

CPC classification number: B29C65/08 ,  B06B1/023 ,  B06B1/0246 ,  B06B1/0253 ,  B29C65/7841 ,  B29C66/1142 ,  B29C66/30223 ,  B29C66/524 ,  B29C66/73921 ,  B29C66/81427 ,  B29C66/8322 ,  B29C66/92443 ,  B29C66/92921 ,  B29C66/9512 ,  B29C66/9513 ,  B29C66/9516 ,  B29C66/9517 ,  B29C66/9592 ,  C08F214/184 ,  G10K11/025 ,  B06B2201/72 ,  B29C2793/00 ,  B29C65/8215 ,  B29C65/8253 ,  B29C66/71 ,  B29C66/729 ,  B29C66/8242 ,  B29C66/91 ,  B29C66/94 ,  B29C66/949 ,  B29K2055/02 ,  B29K2069/00 ,  B29K2077/00

Abstract: An ultrasonic processing method is disclosed wherein during the processing time interval the motional amplitude and engaging force of the resonating horn and thereby the power and engaging pressure to the workpiece is varied to improve weld strength and decrease weld cycle time. The variation in motional amplitude and engaging force may be in response to a process condition such as a change in dimensions of the workpiece, a sharp rise in the transducer power curve, or in response to the lapse of a predetermined time interval.

Abstract translation: 公开了一种超声波处理方法，其中在处理时间间隔期间改变谐振喇叭的运动振幅和接合力，从而改变对工件的功率和接合压力，以提高焊接强度并减少焊接周期时间。 运动幅度和接合力的变化可以响应于诸如工件的尺寸变化，换能器功率曲线的急剧上升或响应于预定时间间隔的过去的过程条件。

公开(公告)号：US20100176184A1

公开(公告)日：2010-07-15

申请号：US12730606

申请日：2010-03-24

Applicant: James F. Sheehan ,  David A. Grewell

Inventor： James F. Sheehan ,  David A. Grewell

IPC: B23K20/10

CPC classification number: B23K20/10

Abstract: A method of ultrasonic welding aluminum parts together includes placing the aluminum parts in an ultrasonic welding apparatus and contacting at least one of the aluminum parts with a horn tip of a weld horn of the ultrasonic welding apparatus. A weld amplitude is profiled during a weld cycle of the ultrasonic welding apparatus by producing a high weld amplitude above 55 μm at the horn tip of the weld horn during an initial period of a weld cycle and producing a low weld amplitude below 55 μm at the horn tip after the initial period.

Abstract translation: 将铝部件超声波焊接在一起的方法包括将铝部件放置在超声波焊接装置中，并将铝部件中的至少一个与超声波焊接装置的焊接喇叭的尖端接触。 在超声波焊接装置的焊接周期期间，通过在焊接周期的初始阶段期间在焊接喇叭的尖端处产生高于55μm的高焊接幅度并在焊接周期的最小时间内产生低于55μm的低焊接幅度， 头尖后初期。

公开(公告)号：US06867388B2

公开(公告)日：2005-03-15

申请号：US10409236

申请日：2003-04-08

Applicant: David A. Grewell ,  Donald C Lovett

Inventor： David A. Grewell ,  Donald C Lovett

IPC: B23K26/06 ,  B23K26/073 ,  B29C35/08 ,  B29C65/16 ,  B23K26/20

CPC classification number: B29C66/1142 ,  B23K26/066 ,  B29C65/1612 ,  B29C65/1635 ,  B29C65/1696 ,  B29C66/30621 ,  B29C66/52441 ,  B29C66/73921 ,  B29C2035/0822 ,  B29K2101/12 ,  B29L2031/003

Abstract: A laser imaging apparatus having a laser source outputting a laser beam and an electronic display device. The electronic display device is positioned downstream from the laser source. The electronic display device is operable to selectively polarize a discrete portion of the laser beam to define a modified portion and an unmodified portion. A polarizing filter is then positioned downstream from the display device so as to prevent passage of either the modified portion or the unmodified portion of the laser beam therethrough so as to define an imaging beam having a specific pattern.

Abstract translation: 一种具有输出激光束的激光源和电子显示装置的激光成像装置。 电子显示装置位于激光源的下游。 电子显示装置可操作以选择性地偏振激光束的离散部分以限定修改部分和未修改部分。 然后将偏振滤光器定位在显示装置的下游，以便防止激光束的修改部分或未修改部分通过其中，以限定具有特定图案的成像光束。