High frequency HID lamp system
    2.
    发明授权
    High frequency HID lamp system 失效
    高频HID灯系统

    公开(公告)号:US5998939A

    公开(公告)日:1999-12-07

    申请号:US90596

    申请日:1998-06-04

    摘要: A high pressure gas discharge lamp system includes a high pressure discharge lamp selected to have a lowest lamp resonant frequency above the audible, on a current basis above about 19 kHz and on a power basis of above about 38 kHz. The ballast circuit energizes the discharge device so as to have a fundamental frequency below the lowest lamp resonant frequency and above the audible, while keeping the magnitude of any harmonics above the lowest lamp resonant frequency sufficiently small so as to avoid acoustic resonance. By operating below the lowest lamp resonant frequency, greatly simplifying ballast construction and cost. According to one embodiment, the discharge vessel encloses a discharge space which is circular cylindrical and having a L:ID ratio of about 1:1 to maximize the lowest lamp resonant frequency. According to another embodiment, two or more discharge devices are operated concurrently by the ballast, each having a lowest lamp resonant frequency of above the audible, and the ballast operating frequency so as to increase light output while still avoiding acoustic resonance.

    摘要翻译: 高压气体放电灯系统包括高压放电灯,其被选择为在高于约19kHz的电流基础上以及高于约38kHz的功率基础上具有低于可听见的最低灯谐振频率。 镇流器电路使放电装置通电,使基频低于最低灯谐振频率和声音之上,同时保持高于最低灯谐振频率的任何谐波的幅度足够小,以避免声共振。 通过低于最低灯谐振频率的操作,极大地简化了镇流器的构造和成本。 根据一个实施例,放电容器包围圆柱形并具有大约1:1的L:ID比的放电空间,以最大化最低的灯谐振频率。 根据另一实施例,通过镇流器同时操作两个或更多个放电装置,每个镇流器具有低于可听见的最低灯谐振频率和镇流器工作频率,以便在仍然避免声共振的同时增加光输出。

    Method of an device for non-destructive pressure measurement of
fluorescent lamps
    4.
    发明授权
    Method of an device for non-destructive pressure measurement of fluorescent lamps 失效
    荧光灯非破坏性压力测量装置的方法

    公开(公告)号:US4021727A

    公开(公告)日:1977-05-03

    申请号:US639270

    申请日:1975-12-10

    申请人: Mark Fellows

    发明人: Mark Fellows

    IPC分类号: G01R31/24

    CPC分类号: G01R31/245

    摘要: A central portion of the lamp is ionized by a RF field applied between two auxiliary electrodes and the strength of the RF signal resulting between the terminal electrodes of the lamp is measured as an indication of the fill gas pressure.

    摘要翻译: 灯的中心部分被施加在两个辅助电极之间的RF场电离,并且测量在灯的端子电极之间产生的RF信号的强度作为填充气体压力的指示。

    METHOD AND SYSTEM FOR CONSTRUCTION DEBRIS REMOVAL FROM A CONSTRUCTION SITE
    5.
    发明申请
    METHOD AND SYSTEM FOR CONSTRUCTION DEBRIS REMOVAL FROM A CONSTRUCTION SITE 审中-公开
    从施工现场拆除建筑结构的方法和系统

    公开(公告)号:US20050232736A1

    公开(公告)日:2005-10-20

    申请号:US10709139

    申请日:2004-04-15

    IPC分类号: B62B1/00 B65F1/02 B65F3/02

    CPC分类号: B65F1/02 B65F3/0203

    摘要: A method and system for removing construction debris to greatly reduce cost and improve the aesthetics and removal of hazardous debris from a construction site. The system includes using a predetermined-sized small steel bin placed at the site that is small enough to be cost effective while at the same time having sufficient storage space for construction debris. A low cost vehicle is used that includes a capture arm that is controlled by a single person for removing trash from the steel bin that is placed in the low cost truck and removed on a periodic basis.

    摘要翻译: 一种用于清除施工残渣的方法和系统,以大大降低成本,并改善建筑工地的危险废物的美观和清除。 该系统包括使用放置在现场的预定尺寸的小型钢箱,其尺寸足够小以具有成本效益,同时具有足够的建筑垃圾的储存空间。 使用低成本车辆,其包括由单个人控制的捕获臂,用于从放置在低成本卡车中的钢箱中移除垃圾并定期移除。