公开(公告)号：US5186505A

公开(公告)日：1993-02-16

申请号：US848463

申请日：1992-03-09

申请人： David T. Chu

发明人： David T. Chu

IPC分类号： A63B51/14

CPC分类号： A63B51/14

摘要： An improved chucking device for a racket stringing machine is mounted on the chucking arm of the racket stringing machine. The chucking arm comprises a sliding track located at the place where the chucking device is mounted and two lugs extending downward from the bottom surface thereof and by both sides of the sliding track. Each chucking device comprises a sliding block having a predetermined number of arresting holes, a clamping block disposed on the sliding block to fasten a racket frame, a pivotal member having a threaded hole, a threaded rod inserted into the threaded hole of the pivotal member in an inclined manner so that it urges against the arresting hole of the sliding block, and a torsion spring located between the pivotal member and the lugs so as to permit the threaded rod to keep urging against the arresting hole. A racket frame can be fastened or released rapidly by relieving the threaded rod of the action of urging against the arresting hole so that the sliding block is allowed to slide rapidly.

摘要翻译： 一种用于球拍穿线机的改进的夹紧装置安装在球拍绳机的夹紧臂上。 夹持臂包括位于夹紧装置安装的位置处的滑动轨道和从其底表面向下延伸并且从滑轨的两侧向下延伸的两个凸耳。 每个夹紧装置包括具有预定数量的止动孔的滑动块，设置在滑动块上的夹紧块，用于固定球拍框架，具有螺纹孔的枢转构件，插入到枢转构件的螺纹孔中的螺杆 倾斜的方式使得其推动滑动块的止动孔，以及位于枢转构件和凸耳之间的扭簧，以允许螺杆保持推动抵靠止动孔。 可以通过将螺杆推压到止动孔的作用上来快速地紧固或释放球拍框架，使滑块快速滑动。

公开(公告)号：US5269515A

公开(公告)日：1993-12-14

申请号：US52533

申请日：1993-04-29

申请人： David T. Chu

发明人： David T. Chu

IPC分类号： A63B51/14

CPC分类号： A63B51/14

摘要： A game racket stringing machine comprises a machine body and a string-pulling gear. The machine body has a base comprising a main rod and two secondary rods which are pivoted respectively to the undersides of both ends of the main rod. The secondary rods can be rotated to overlap with the main rod so that the machine body can be reduced in volume. The string-holding gear comprises a rotatable wheel, two string-holding members, a tension rod, a weight fastened to the tension rod, and at least one elastic element which is disposed between the rotatable wheel and the string-holding members. The elastic element causes the string-holding members to move back to a specified position so as to release automatically the string which is held securely by the string-holding members.

摘要翻译： 一种游戏球拍绳索机包括机体和拉绳装置。 机体具有包括主杆和两个辅助杆的基座，其分别枢转到主杆的两端的下侧。 辅助杆可以旋转以与主杆重叠，使得机体可以减小体积。 绳固定齿轮包括可旋转轮，两个弦夹持构件，张力杆，紧固到张力杆上的重物以及设置在可旋转轮和弦固定构件之间的至少一个弹性元件。 弹性元件使琴弦保持构件返回到指定位置，以便自动释放由琴弦保持构件牢固地保持的琴弦。

公开(公告)号：US5648700A

公开(公告)日：1997-07-15

申请号：US514608

申请日：1995-08-14

申请人： Michael Yi Chu ,  David Yu Chu

发明人： Michael Yi Chu ,  David Yu Chu

IPC分类号： H01J61/42 ,  H01J61/72 ,  H01J1/62 ,  H01J17/04 ,  H01J61/04 ,  H01J63/04

CPC分类号： H01J61/42 ,  H01J61/72

摘要： A fluorescent lamp device includes a transparent sealed container which is filled with a working gas, an electron emitting unit which extends into the container and which is operable to emit electrons that interact with the working gas to generate short-wave ultraviolet energy, and a light emitting member which is disposed in the container and which is made of an insulator material. The light emitting member has an external surface coated with a layer of fluorescent material that converts the ultraviolet energy into visible light.

摘要翻译： 荧光灯装置包括填充有工作气体的透明密封容器，延伸到容器中的电子发射单元，其可操作地发射与工作气体相互作用的电子以产生短波紫外线能量，以及光 发光构件，其设置在容器中并且由绝缘体材料制成。 发光部件具有涂覆有荧光材料层的外表面，其将紫外线能量转换成可见光。

公开(公告)号：US4699378A

公开(公告)日：1987-10-13

申请号：US884032

申请日：1986-07-10

申请人： Lan C. Sung

发明人： Lan C. Sung

IPC分类号： A63B69/40

CPC分类号： A63B69/408

摘要： A tennis ball throwing machine which comprises a motor secured to a frame board, the output end of the motor shaft having a gear wheel securely mounted thereon, first and second transmission shaft respectively fixed to a gear wheel at one end thereof and engaged with the gear wheel of the motor, a bat pivotally attached to the first transmission shaft, one end of the bat being a hitting portion, and the other end thereof being attached to a tension spring, a cam pivoted on the second transmission shaft, a ball guiding groove being pivoted on a supporting shaft and having a portion thereof in contact with the cam to move upward, downward, leftward and rightward, a tension spring at the bottom end of the ball guide groove. The axis of the cam which is eccentric with and at an angle relative to the second transmission shaft, and two guiding boards are provided beneath the ball guiding groove, the two guiding boards being clamped on both sides of the cam whereby the ball guiding groove driven by the cam may move upward, downward, leftward and rightward to change the throwing direction.

摘要翻译： 一种网球投掷机，其特征在于，包括固定在框架板上的马达，马达轴的输出端具有安装在其上的齿轮，第一和第二传动轴分别固定在齿轮的一端并啮合齿轮 电动机的转轮，以第一传动轴为枢轴转动的蝙蝠，蝙蝠的一端为撞击部，另一端安装在拉伸弹簧上，枢转于第二传动轴上的凸轮，球引导槽 在支撑轴上枢转，并且其一部分与凸轮接触以向上，向下，向左和向右移动，在球引导槽的底端处具有拉伸弹簧。 相对于第二传动轴偏心并相对于第二传动轴的凸轮的轴线和两个引导板设置在球引导槽的下方，两个引导板被夹紧在凸轮的两侧，由此滚珠引导槽驱动 通过凸轮可以向上，向下，向左和向右移动以改变投掷方向。

公开(公告)号：US5607336A

公开(公告)日：1997-03-04

申请号：US503896

申请日：1995-07-18

申请人： Steven Lebensfeld ,  Harvey Goldberg ,  David K. K. Chu ,  Ma H. Wai

发明人： Steven Lebensfeld ,  Harvey Goldberg ,  David K. K. Chu ,  Ma H. Wai

IPC分类号： A63H3/00 ,  A63H3/28 ,  A63H3/33 ,  G10K15/04 ,  G10L13/00

CPC分类号： A63H3/28

摘要： A uniquely constructed message delivering doll or action figure is attained, which is capable of providing, when activated, words or phrases specifically relating to one desired, precise subject, activity, profession or area of interest for which the doll or action figure is dressed, by providing a toy doll or action figure which incorporates an audio generator contained therein for producing audible messages, message containing components removably interconnectable therewith, and outfits of wearing apparel for designating or relating to one specific subject, activity, profession, or area of interest. Each message containing component comprises a plurality of messages, each of which is specifically related to a particular subject, activity, profession, or area of interest designated by an outfit of wearing apparel.

摘要翻译： 实现了独特构造的传送娃娃或动作人物的信息，其能够在被激活时提供专门涉及玩偶或动作人物穿着的一个期望的，精确的主题，活动，专业或兴趣领域的单词或短语， 通过提供一种玩具娃娃或动作人物，其中包含其中包含的音频发生器用于产生可听见的消息，包含可移除地与其相互连接的组件的消息，以及用于指定或涉及一个特定主题，活动，专业或感兴趣区域的服装的服装。 每个包含消息的消息包括多个消息，每个消息具体涉及由穿着服装指定的特定主题，活动，职业或感兴趣的领域。

公开(公告)号：US4706955A

公开(公告)日：1987-11-17

申请号：US865134

申请日：1986-05-20

申请人： Sumiaty Ngadi ,  David T. Chu

发明人： Sumiaty Ngadi ,  David T. Chu

IPC分类号： A63B51/14

CPC分类号： A63B51/14

摘要： A racket stringing machine comprises a support frame, a tension head assembly, a lateral clamp head and a longitudinal clamp head. Movement of the tension head assembly is controlled by a brake motor which is controlled by the signals transferred from a limit switch. The limit switch is normally pressed by a contact element and released when a string clamp head pivoted on the tension head assembly is spring biassed to pivot away from the clamping frame and a contact element fixed on the string clamp head is separated from the limit switch. The lateral clamp head comprises two lateral clamp arms for clamping the lateral sides of a racket frame to be strung by a pivotal movement accomplished by an actuating block sliding along a rotating bolt. The longitudinal clamp head comprises a clamping sheet with a rack extending downward from the bottom surface for meshing with a sector gear so as to be rotated by a handle in order to clamp the upper surface of the racket frame.

摘要翻译： 球拍穿线机包括支撑框架，张紧头组件，横向夹头和纵向夹头。 张紧头组件的移动由通过从限位开关传送的信号控制的制动马达控制。 限位开关通常被接触元件按压并且当枢转在张紧头组件上的弦线夹头被弹簧偏压以远离夹持框架枢转并且固定在弦线夹头上的接触元件与限位开关分离时释放。 横向夹头包括两个横向夹紧臂，用于夹紧球拍框架的侧面以通过沿着旋转螺栓滑动的致动块实现的枢转运动而被摆动。 纵向夹头包括夹板，其具有从底表面向下延伸的齿条，用于与扇形齿轮啮合，以便由手柄旋转以夹紧球拍框架的上表面。

公开(公告)号：US4200403A

公开(公告)日：1980-04-29

申请号：US943468

申请日：1978-09-18

申请人： David Y. Chu

发明人： David Y. Chu

IPC分类号： B43K7/00 ,  B43K7/12 ,  B43K24/02 ,  B43K23/00 ,  B43K19/00 ,  B43K21/00 ,  B43K24/06

CPC分类号： B43K7/005 ,  B43K21/006 ,  B43K24/02 ,  B43K7/12

摘要： A writing implement having a body formed by a pair of leaves each having a longitudinally extending bore therein, with the bores in the two leaves coaxial and the two leaves interengaged in the manner of a hinge, and a writing member, such as a pencil lead or ball-point pen with an ink reservoir, extending through the coaxial bores in the two members, the two leaves being relatively pivotable about the axis of the coaxial bores therein between a storage configuration in which the leaves lie substantially in the same plane and a writing configuration in which the planes of the two leaves are at an acute angle to one another. The writing member is preferably secured to an axially movable plunger in the coaxial bores, which plunger has grooves co-operating with projections from the leaves such that a writing tip of the writing member is caused to project from one end of the leaves upon movement of the leaves from the storage to the writing configuration.

摘要翻译： 一种书写工具，其具有由一对叶片形成的主体，每个叶片在其中具有纵向延伸的孔，两个叶片中的孔同轴，并且两个叶片以铰链的方式相互接合;以及书写构件，例如铅笔 或具有墨水储存器的圆珠笔，延伸穿过两个构件中的同轴孔，两个叶片可以在其中叶片基本上位于相同的平面中的存储构型之间围绕其中的同轴孔的轴线相对枢转，并且 书写结构，其中两个叶子的平面彼此成锐角。 书写构件优选地固定在同轴孔中的可轴向移动的柱塞上，该柱塞具有与来自叶片的突起配合的凹槽，使得书写构件的书写尖端在叶片的一端移动时从叶片的一端突出 从存储到写入配置的叶子。

公开(公告)号：US5860447A

公开(公告)日：1999-01-19

申请号：US644357

申请日：1996-05-10

申请人： David Chu

发明人： David Chu

IPC分类号： G05D16/10 ,  F16K31/12

CPC分类号： G05D16/103 ,  Y10T137/7779 ,  Y10T137/778 ,  Y10T137/7808

摘要： An in line fluid pressure regulating and pressure relief device having a regulator body with an axial bore therethrough with an inlet chamber conectable to a source of fluid under pressure and an outlet chamber connect able to a device requiring fluid under substantially constant pressure. A fluid pressure regulator located in the regulator body maintains fluid pressure at the outlet chamber at a constant predetermined level. A bleed piston located in the axial bore between the inlet chamber and to the pressure regulating means loses contact with said pressure regulating piston when the pressurized fluid source is removed from the regulator or drops below a certain level relieving substantially all pressure in said exit chamber and any attached device passively rendering the device inoperable.

摘要翻译： 一种在线流体压力调节和压力释放装置，其具有带有轴向孔的调节器本体，其具有可连接到压力下的流体源的入口室和能够连接到在基本恒定的压力下需要流体的装置的出口室。 位于调节器体内的流体压力调节器以恒定的预定水平保持出口室处的流体压力。 位于入口室和压力调节装置之间的轴向孔中的排放活塞在加压流体源从调节器移除或降低到一定水平以下时释放与所述压力调节活塞的接触，从而减轻所述出口室中的所有压力，并且 任何附加设备被动地渲染设备不可操作。