公开(公告)号：US06239557B1

公开(公告)日：2001-05-29

申请号：US09524969

申请日：2000-03-14

Applicant: Chin Chang ,  Roderick T. Himman

Inventor： Chin Chang ,  Roderick T. Himman

IPC: H05B4116

CPC classification number: H01F27/38 ,  H05B41/2822 ,  H05B41/2827

Abstract: A method of winding a step-up transformer substantially minimizes the parasitic capacitance effects between the primary coil of the transformer and the secondary coil of the transformer. The primary coil is wound around a sectional bobbin and laid upon the bobbin in a winding direction that is opposite to the winding direction of the secondary coil. The opposite winding directions allow the high-voltage terminal ends of the primary and secondary coils to be maximally separated. The maximal separation of high-voltage signals within each coil reduces the effects of the capacitive coupling between the coils, and also maximizes the breakdown voltage between the coils. In a preferred embodiment, the auxiliary coil of the step-up transformer is also configured to minimize the effects of capacitive coupling and to maximize the breakdown voltage among the coils.

Abstract translation: 卷绕升压变压器的方法基本上使变压器的初级线圈和变压器的次级线圈之间的寄生电容效应最小化。 初级线圈缠绕在分段绕线管上，并且绕着与绕线方向相反的绕线方向放置在线轴上。 相反的绕组方向允许初级线圈和次级线圈的高压端子最大程度地分离。 每个线圈内的高电压信号的最大间隔可以降低线圈之间电容耦合的影响，并使线圈之间的击穿电压最大化。 在优选实施例中，升压变压器的辅助线圈还被配置为使电容耦合的影响最小化并且使线圈之间的击穿电压最大化。

公开(公告)号：US06194840B1

公开(公告)日：2001-02-27

申请号：US09221954

申请日：1998-12-28

Applicant: Chin Chang

Inventor： Chin Chang

IPC: H05B3702

CPC classification number: H05B41/282 ,  Y02B20/183 ,  Y02B20/185 ,  Y10S315/07

Abstract: An electronic fluorescent lamp ballast having output voltage stabilized by a bandpass filter connected between a transformer control winding and the switching electrode of the switching transistor. In one embodiment especially adapted for ballasts which power multiple lamps, the filter causes oscillation frequency to vary with the number of lamps lit in such a way that output (lamp) voltage remains relatively constant. A filter for this application preferably includes a low-Q tank circuit in the series path of a &pgr; section, and has an input high pass T section. In another embodiment, a low cost electronic ballast having power feedback uses passive bandpass filters between transformer control windings and the control electrodes, so as to simplify the control and driver circuitry.

Abstract translation: 一种具有通过连接在变压器控制绕组和开关晶体管的开关电极之间的带通滤波器稳定的输出电压的电子荧光灯镇流器。 在一个实施例中，特别适用于对多个灯供电的镇流器，滤波器引起振荡频率随着点亮的灯的数量而变化，使得输出（灯）电压保持相对恒定。 用于该应用的滤波器优选地包括在pi部分的串联路径中的低Q波形电路，并且具有输入高通T部分。 在另一个实施例中，具有功率反馈的低成本电子镇流器使用变压器控制绕组和控制电极之间的无源带通滤波器，以便简化控制和驱动器电路。

公开(公告)号：US06137234A

公开(公告)日：2000-10-24

申请号：US421355

申请日：1999-10-18

Applicant: Jurgen M. A. Willaert ,  Chin Chang

Inventor： Jurgen M. A. Willaert ,  Chin Chang

IPC: H05B41/24 ,  H05B41/282 ,  H05B41/295 ,  H05B37/02 ,  H02M5/45

CPC classification number: H05B41/2828 ,  H05B41/295

Abstract: A circuit arrangement for operating two or more discharge lamps in parallel, includes a transformer in a resonant load circuit. Each of the lamps is part of a series arrangement of the lamp and a capacitor. The operating frequency is chosen below the frequency for which the phase shift between the voltage and current in the load circuit is minimal. During operation, the amplitude of the current in the load circuit is relatively low so that power dissipation in the load circuit is also very low.

Abstract translation: 用于并联操作两个或更多个放电灯的电路装置包括谐振负载电路中的变压器。 每个灯是灯和电容器的串联布置的一部分。 工作频率选择为低于负载电路中的电压和电流之间的相移最小的频率。 在运行期间，负载电路中的电流幅值相对较低，因此负载电路中的功耗也很低。

公开(公告)号：US6030164A

公开(公告)日：2000-02-29

申请号：US320601

申请日：1999-05-26

Applicant: Liu Chin-Chang ,  Su Chi-Chan

Inventor： Liu Chin-Chang ,  Su Chi-Chan

IPC: B65B13/32 ,  B42C13/00

CPC classification number: B65B13/32 ,  Y10S412/902

Abstract: A device for heating and melting both ends of a lashing tape of a binding machine at the conclusion of a binding process is formed of a housing and an electrical heater which is disposed in the housing and provided with a plurality of current conducting and heat generating lines and a plurality of temperature sensing lines connected with a control switch of the binding machine for regulating the operation of the binding machine and the power supply to the current conducting and heat generating lines of the device.

Abstract translation: 在装订过程结束时用于加热和熔化装订机捆扎带的两端的装置由壳体和电加热器形成，壳体和电加热器设置在壳体中并且设置有多个导热和发热线 以及与装订机的控制开关连接的多个温度检测线，用于调节装订机的操作和向装置的导电和发热线路供电。

公开(公告)号：US5732601A

公开(公告)日：1998-03-31

申请号：US732053

申请日：1996-10-17

Applicant: Chin-chang Wu

Inventor： Chin-chang Wu

IPC: B62L3/00 ,  F16C1/12 ,  F16C1/10

CPC classification number: F16C1/101 ,  B62L3/00 ,  Y10T74/20408 ,  Y10T74/2045

Abstract: A coupling device includes a frame with a first flange extending from a top end thereof and a second flange extending from a lower end of the frame, a first bolt threadedly extending through the first flange with a passage defined longitudinally in the first bolt for a first brake cable extending therethrough, a connecting block composed of a first part and a second part and being disposed between the first flange and the second flange, the first part and the second part each having three recesses defined therein, each of the first part and the second part having three notches defined therein for respectively communicating with the recess corresponding thereto such that the first brake cable and two second brake cables have their heads respectively received in the three recesses.

Abstract translation: 耦合装置包括具有从其顶端延伸的第一凸缘的框架和从框架的下端延伸的第二凸缘，第一螺栓，螺纹地延伸穿过第一凸缘，通道在第一螺栓中纵向限定，用于第一 制动电缆，其由第一部分和第二部分组成并连接在第一凸缘和第二凸缘之间，第一部分和第二部分各自具有限定在其中的三个凹部，第一部分和第二部分 第二部分具有限定在其中的三个凹口，用于分别与对应于其的凹部连通，使得第一制动电缆和两个第二制动电缆的头部分别容纳在三个凹部中。

公开(公告)号：US5654742A

公开(公告)日：1997-08-05

申请号：US451476

申请日：1995-05-26

Applicant: Curtis Priem ,  Chris Malachowsky ,  Shuen Chin Chang ,  Hai Duy Ho

Inventor： Curtis Priem ,  Chris Malachowsky ,  Shuen Chin Chang ,  Hai Duy Ho

IPC: G06F12/02 ,  G06F12/00 ,  G09G5/00 ,  G09G5/39 ,  G11C7/10

CPC classification number: G11C7/1087 ,  G09G5/39 ,  G11C7/103 ,  G11C7/1033 ,  G11C7/1051 ,  G11C7/1078

Abstract: A frame buffer designed to allow frame buffer operations which do not involve new row addresses to be accomplished without the need for a RAS cycle. The elimination of RAS cycles for address loading and similar functions substantially accelerates the operation of the frame buffer both as to functions which do not involve memory array addresses and those which do involve memory array addresses.

Abstract translation: 设计用于允许不需要RAS周期来实现不涉及新行地址的帧缓冲操作的帧缓冲器。 消除用于地址加载和类似功能的RAS周期大大加速了帧缓冲器的操作，这两个功能不涉及存储器阵列地址和那些涉及存储器阵列地址的功能。

公开(公告)号：US5595092A

公开(公告)日：1997-01-21

申请号：US410341

申请日：1995-03-24

Applicant: Chin-chang Cheng

Inventor： Chin-chang Cheng

IPC: B62B1/12 ,  G05G5/22

CPC classification number: B62B1/125 ,  B62B2202/24 ,  Y10T403/32501 ,  Y10T74/2066

Abstract: A positioning device of a pair of telescopically retractable vertical bars of a trolley includes a sleeve member, a pair of eccentric rings and a control unit. The sleeve member has a pair of sleeves coaxially rigidly mounted on outer tubes of the vertical bars, a plate having a height no less than a height of the sleeves and horizontally extending between the sleeves and tangentially in contact with them at an outer periphery thereof, and a gap respectively and radially defined in the sleeves. The eccentric rings have an inner diameter equal to an outer diameter of inner tubes of the vertical bars for the inner tubes passing therethrough and are coaxially rivetally retained in the gaps with a thinner ring wall thereof in contact with the plate. The control unit is adapted to actuate the eccentric rings to rotate and cause a thicker ring wall thereof to contact the plate and thereby radially displacing the eccentric rings to tighten the inner tubes of the vertical bars to the sleeves and thereby positioning the vertical bars.

Abstract translation: 手推车的一对可伸缩的垂直杆的定位装置包括套筒构件，一对偏心环和控制单元。 套筒构件具有同轴刚性地安装在垂直杆的外管上的一对套筒，板的高度不小于套筒的高度，并且在套筒之间水平地延伸并在其外周切向地与它们接触， 和间隙，并且径向地限定在套筒中。 偏心环的内径等于通过其的内管的垂直杆的内管的外径，并且同轴地保持在间隙中，其较薄的环壁与板接触。 控制单元适于致动偏心环以旋转，并使其较厚的环壁与板接触，从而径向移动偏心环，以将垂直杆的内管紧固到套筒上，从而定位垂直杆。

公开(公告)号：US5505471A

公开(公告)日：1996-04-09

申请号：US303028

申请日：1994-09-08

Applicant: Chin-Chang Cheng

Inventor： Chin-Chang Cheng

IPC: A63B55/60 ,  B62B1/04 ,  B62B5/08 ,  B62B1/12

CPC classification number: B62B5/085 ,  B62B1/047 ,  A63B2208/12 ,  A63B55/60 ,  B62B2202/404 ,  B62B2205/14

Abstract: A trolley comprising a pair of vertical bars, a pair of linking bars, and a wheel assembly operable by the linking bars to pivotally move between an extended and a retracted positions. A movable block slidable on the vertical bars is connected with the linking bars. A positioning plate is fixedly mounted on the movable block and a sliding movement of the movable block relative to the vertical bars is controlled by a biasing unit in cooperation with the positioning plate. A respective compression spring is additionally provided on the vertical bars to facilitate the sliding movement of the movable block when the movable block is released to move.

Abstract translation: 一种手推车，包括一对垂直杆，一对连接杆，以及可由连接杆操作的轮组件，以在延伸位置和缩回位置之间枢转地运动。 在垂直杆上滑动的可移动块与连接杆连接。 定位板被固定地安装在可动块上，可移动块相对于垂直杆的滑动由与定位板协作的偏压单元控制。 相应的压缩弹簧另外设置在垂直杆上，以便当可移动块被释放移动时便于可动块的滑动运动。

公开(公告)号：US5494340A

公开(公告)日：1996-02-27

申请号：US289943

申请日：1994-08-12

Applicant: Chin-Chang Cheng

Inventor： Chin-Chang Cheng

IPC: B60B37/10 ,  B60B37/00

CPC classification number: B60B37/10

Abstract: A handcart wheel-mounting assembly includes a mount member which has a first tubular portion, a pair of first lug portions formed on an outer periphery of the first tubular portion and each having a slot defined therein, a first socket vertically defined in each of the first lug portions and communicating with associated slot, a second tubular portion co-axially formed in the wheel and having a tubular compartment defined therein for receiving the first tubular portion, a pair of second lug portions formed on an outer periphery of the second tubular portion each having a substantially U-shaped recess defined therein and communicating with the compartment for receiving a corresponding one of the pair of first lug portions, a second socket vertically defined in each of the pair of second lug portions and communicating with associated recess for alignment with associated first socket, and a resilient member received in the slot of each of the pair of first lug portions and having a latch formed thereon which is biased through the first socket into the second socket and projecting outwards of associated the second lug portion, a substantially L-shaped pressing element extending from the resilient member and having a horizontal section located above associated second lug portion.

Abstract translation: 手车轮安装组件包括安装构件，其具有第一管状部分，形成在第一管状部分的外周上并且每个具有限定在其中的狭槽的一对第一突出部分， 第一凸起部分并与相关联的槽连通，第二管状部分同轴地形成在车轮中并且具有限定在其中的管状隔室用于容纳第一管状部分;一对第二突出部分，形成在第二管状部分的外周上 每个具有限定在其中的基本上U形的凹部，并且与所述隔间连通以接收所述一对第一凸耳部分中的对应的一个;第二插座，其垂直限定在所述一对第二凸耳部分中的每一个中，并且与相关联的凹部连通， 以及弹性构件，其容纳在所述一对第一凸耳部分中的每一个的所述槽中并且具有闩锁 其形成在其上，其通过第一插座偏压进入第二插座并且从相关联的第二凸耳部分向外突出，从弹性构件延伸并且具有位于相关联的第二凸耳部分上方的水平部分的大致L形的按压元件。

公开(公告)号：US5490688A

公开(公告)日：1996-02-13

申请号：US328888

申请日：1994-10-25

Applicant: Chin-Chang Cheng

Inventor： Chin-Chang Cheng

IPC: B62B1/12 ,  B62B1/04

CPC classification number: B62B1/12 ,  B62B2202/24 ,  Y10T403/32409

Abstract: A control device is provided for folding and extending a baggage cart which includes a substantially U-shaped support member having a horizontal first bight and two parallel vertical legs, a substantially U-shaped handle portion having a horizontal second bight and two parallel elongated stands each respectively pivotally engaged with a corresponding one of the vertical legs, a base member pivotally engaged with the support member, the control device including a movable sleeve member which is movably mounted on the pair of elongated stands and has a top plate, a pair of lug portions each laterally formed on the movable sleeve member and each having a vertical passage longitudinally defined therein for receiving a corresponding one of the elongated stands, the sleeve member having an opening facing downwardly for receiving the pair of vertical legs therein with the first bight of the support member abutting against the top plate of the sleeve member.

Abstract translation: 提供一种用于折叠和延伸行李车的控制装置，该行李车包括具有水平的第一弯道和两个平行的垂直腿部的基本上U形的支撑构件，具有水平第二弯头的大致U形手柄部分和两个平行的细长支架 分别枢转地与相应的一个垂直腿部枢转地接合，与支撑构件枢转地接合的基部构件，所述控制装置包括可移动的套筒构件，其可移动地安装在所述一对细长支架上，并且具有顶板，一对凸耳 每个横向地形成在可移动套筒构件上并且每个具有纵向限定在其中的竖直通道的部分，用于容纳相应的一个细长支架，套筒构件具有面向下的开口，用于在其中接收一对竖直腿，其中第一个 支撑构件抵靠套筒构件的顶板。