Method and device for forming tubular work into shaped hollow product by using tubular hydroforming
    51.
    发明授权
    Method and device for forming tubular work into shaped hollow product by using tubular hydroforming 有权
    通过使用管状液压成型将管状工件形成成形中空产品的方法和装置

    公开(公告)号:US06415638B1

    公开(公告)日:2002-07-09

    申请号:US09534261

    申请日:2000-03-24

    IPC分类号: B21D2602

    CPC分类号: B21D22/125 B21D22/105

    摘要: For forming a tubular work into a shaped hollow product by using hydroforming process, a method and a device are described. In the method, female and male dies are prepared. The female die has a longitudinally extending cavity which has a polygonal cross section when receiving the male die. The tubular work is placed into the cavity of the female die. The interior of the tubular work is then fed with a hydraulic fluid, and the pressure of the fluid is increased to a given level. The given level is smaller than a critical level that causes a bulging of the tubular work. The male die is then pressed against the tubular work to deform the same while keeping the hydraulic fluid at the given level, thereby forming a shaped hollow product that has a polygonal cross section that conforms to that of the cavity. The pressing work is continued until a circumferential length of the shaped hollow product becomes shorter than that of the tubular work.

    摘要翻译: 为了通过使用液压成型工艺将管状工件形成成型的中空产品,描述了一种方法和装置。 在该方法中,制备阴模和阴模。 阴模具有纵向延伸的空腔,当接收阳模时,其具有多边形横截面。 将管状工件放入阴模的空腔中。 然后,管状工件的内部被供给液压流体,并且流体的压力增加到给定的水平。 给定的水平小于导致管状工作膨胀的临界水平。 然后将阳模压在管状工件上以使其变形,同时将液压流体保持在给定的水平,从而形成具有与腔的多边形横截面一致的成形中空产品。 压制工作继续进行,直到成形中空制品的圆周长度变得短于管状工件的圆周长度。

    Emitter material for cathode ray tube having at least one alkaline earth metal carbonate dispersed or concentrated in a mixed crystal or solid solution
    52.
    发明授权
    Emitter material for cathode ray tube having at least one alkaline earth metal carbonate dispersed or concentrated in a mixed crystal or solid solution 失效
    具有分散或浓缩在混合晶体或固溶体中的至少一种碱土金属碳酸盐的阴极射线管用发射体材料

    公开(公告)号:US06222308B1

    公开(公告)日:2001-04-24

    申请号:US08716019

    申请日:1996-09-19

    IPC分类号: H01J114

    CPC分类号: H01J9/042 H01J1/142 H01J1/316

    摘要: An emitter material for a CRT comprises mixed crystal or solid solution of at least two kinds of alkaline earth metal carbonate, wherein at least one alkaline earth metal carbonate is dispersed or separated in the mixed crystal or solid solution. The alkaline earth metal carbonate, which is an emitter material for the CRT, is coated onto the base metal and thermally decomposed in a vacuum to from an emitter of an alkaline earth metal. This emitter, which is proper for a larger screen size, high brightness and high resolution CRT, can be provided with enough life characteristics even under the operating condition of the emission current density of 2A/cm2.

    摘要翻译: 用于CRT的发射体材料包括至少两种碱土金属碳酸盐的混合晶体或固溶体,其中至少一种碱土金属碳酸盐在混晶或固溶体中分散或分离。 作为CRT的发射体材料的碱土金属碳酸盐被涂覆在贱金属上,并在真空中从碱土金属的发射极热分解。 即使在2A / cm2的发射电流密度的工作条件下,这种适用于较大屏幕尺寸,高亮度和高分辨率CRT的发射器也可提供足够的寿命特性。

    Stringed musical instrument formed from bamboo plates
    53.
    发明授权
    Stringed musical instrument formed from bamboo plates 有权
    由竹板组成的弦乐器

    公开(公告)号:US6051764A

    公开(公告)日:2000-04-18

    申请号:US261110

    申请日:1999-03-03

    申请人: Hiroshi Sakurai

    发明人: Hiroshi Sakurai

    CPC分类号: G10D1/005 G10D3/02

    摘要: Bamboo fibers uniformly extend in the longitudinal direction of a bamboo stem so as to impart good acoustic properties to bamboo plates formed from bamboo strips, and the bamboo plates are available for a component parts of a body and a neck both forming part of an acoustic guitar, because the bamboo is easily economically obtainable.

    摘要翻译: 竹纤维在竹茎的纵向上均匀地延伸,以便对由竹条形成的竹板赋予良好的声学特性,并且竹板可用于身体和颈部的组成部分,这两部分构成了吉他的一部分 因为竹子经济上很容易获得。

    Camera using film having a magnetic memory portion
    54.
    发明授权
    Camera using film having a magnetic memory portion 失效
    相机使用具有磁记忆部分的胶片

    公开(公告)号:US5749007A

    公开(公告)日:1998-05-05

    申请号:US900130

    申请日:1997-07-25

    申请人: Hiroshi Sakurai

    发明人: Hiroshi Sakurai

    IPC分类号: G03B17/28 G03B17/02 G03B17/24

    CPC分类号: G03B17/24 G03B2217/244

    摘要: A camera or an apparatus adapted to use a film with a magnetic memory portion, or a device adapted for such a camera or an apparatus has a magnetic head for at least one of writing information to the magnetic memory portion of the film and reading information from the magnetic memory portion, and a tool application portion for applying a tool for checking the performance of the magnetic head.

    摘要翻译: 适于使用具有磁存储器部分的胶片的相机或装置或适用于这种相机或装置的装置具有用于将信息写入胶片的磁存储器部分中的至少一个的磁头, 磁存储器部分和用于施加用于检查磁头性能的工具的工具施加部分。

    Method for mounting components and apparatus therefor
    55.
    发明授权
    Method for mounting components and apparatus therefor 失效
    组件及其装置的安装方法

    公开(公告)号:US5570993A

    公开(公告)日:1996-11-05

    申请号:US103353

    申请日:1993-08-09

    IPC分类号: B23P21/00 H05K13/04 H05K13/08

    摘要: A component mounting device adapted to mount components such IC or the like on a printed circuit board that includes replaceable pick up nozzles to accommodate different types of components to be picked up. A sensing station is provided that permits the pick up nozzle to be verified as the correct one and also to determine, if desired, its orientation and misalignments in its axis of rotation so as to permit adjustment in the mounted to accommodate for errors. In addition, a reference height position may be set so that the same sensing station can be employed to sense both the orientation of a component that is picked up and also whether the component is correctly oriented for deposit. This is done by measuring projected lengths in a plane with a photo sensitive device and by making calculations in accordance with trigonometric relationships.

    摘要翻译: 一种适于将IC等组件安装在印刷电路板上的部件安装装置,该印刷电路板包括可更换的拾取喷嘴以适应要拾取的不同类型的部件。 提供了一种感测站,其允许将拾取喷嘴验证为正确的喷嘴,并且如果需要,还确定其拾取旋转轴线的取向和不对准,以便允许调整安装以适应错误。 此外,可以设置参考高度位置,使得可以使用相同的感测站来感测拾取的部件的取向以及组件是否被正确定向以进行沉积。 这是通过用光敏设备测量平面中的投影长度并通过根据三角关系进行计算来完成的。

    Gas discharge tube with tunnel effect type cathode
    56.
    发明授权
    Gas discharge tube with tunnel effect type cathode 失效
    带隧道效应型阴极的气体放电管

    公开(公告)号:US5266867A

    公开(公告)日:1993-11-30

    申请号:US773489

    申请日:1991-10-09

    申请人: Hiroshi Sakurai

    发明人: Hiroshi Sakurai

    IPC分类号: H01J1/312 H01J17/06

    摘要: A gas discharge tube using a tunnel effect type electron emitting device as a cathode is provided. The electron emitting device comprises a conductive metal base and a dielectric film formed preferably of a material containing MgO as a main component on the metal base. The dielectric film faces an anode and is exposed to a gas in the tube. In the cathode of this structure, discharge is effected at a relatively low DC voltage.

    摘要翻译: 提供了使用隧道效应型电子发射器件作为阴极的气体放电管。 电子发射器件包括导电金属基底和优选由在金属基底上含有MgO作为主要成分的材料形成的电介质膜。 电介质膜面向阳极并暴露于管中的气体。 在该结构的阴极中,在相对低的DC电压下进行放电。

    Hygrometer with plural measuring bones and redundancy system circuit
    59.
    发明授权
    Hygrometer with plural measuring bones and redundancy system circuit 失效
    湿度计具有多个测量骨骼和冗余系统电路

    公开(公告)号:US4891574A

    公开(公告)日:1990-01-02

    申请号:US287099

    申请日:1988-12-20

    IPC分类号: G01N27/22 G01N27/12 G01N33/00

    CPC分类号: G01N33/0031 G01N27/121

    摘要: A hygrometer of the electrical impedance type includes a sensing element (1) having a porous moisture adsorbing layer (3), the electrical properties of which vary with the quantity of water vapour adsorbed on it sandwich between a substrate (2) and a porous conducting electrode (4). The conducting electrode (4) is divided into a number of separate measuring zones (6A, 6 and 6C) by gaps (5). The hygrometer also includes a redundancy system circuit (7) which is connected to each of the separate measuring zones (6A, 6B and 6C) and which only provides a moisture indication when the output from at least two of the zones (6A, 6B and 6C) are in agreement. This arrangement enables failures of the sensing element (1) to be detected and distinguished from a false moisture indication.