Pulse generator for generating a voltage pulse and corresponding method
    81.
    发明授权
    Pulse generator for generating a voltage pulse and corresponding method 有权
    用于产生电压脉冲的脉冲发生器和相应的方法

    公开(公告)号:US06667875B1

    公开(公告)日:2003-12-23

    申请号:US09806345

    申请日:2001-05-25

    Inventor: Werner Hartmann

    CPC classification number: B03C3/66 H03K3/53 H03K3/57

    Abstract: A pulse generator produces a voltage pulse for an inductive or capacitive load, in particular for an electrostatic dust extractor, having an energy-storage capacitor which is connected in series with a controllable switch. The switch is self-opening at the zero crossing of the current flowing to the load, in a series of tuned circuits. The energy-storage capacitor is discharged to the load by closing and opening the controllable switch in a single discharging process during only one half oscillation period of the series tuned circuit.

    Abstract translation: 脉冲发生器产生用于感应或电容负载的电压脉冲,特别是对于具有与可控开关串联连接的储能电容器的静电除尘器。 在一系列调谐电路中,开关在流过负载的电流的过零点处自开。 在串联调谐电路的仅一个半振荡周期期间,通过在单次放电过程中闭合和断开可控开关,将储能电容器放电到负载。

    Method of and apparatus for making a stream from particles of the
tobacco processing industry
    87.
    发明授权
    Method of and apparatus for making a stream from particles of the tobacco processing industry 失效
    制造烟草加工业颗粒物流的方法和设备

    公开(公告)号:US4865052A

    公开(公告)日:1989-09-12

    申请号:US930251

    申请日:1986-11-12

    Abstract: The density of a stream of tobacco particles at the underside of a foraminous belt conveyor is monitored by an array of X-ray detectors to generate signals each denoting the density of a different thin layer in successive increments of the stream. Such signals are processed into signals denoting the density of the entire stream, the filling power of tobacco, and the quantity of the surplus in the stream. The processed signals are used to adjust the trimmer which removes the surplus, to adjust the distributor which feeds the particles to the stream, to regulate the hardness of cigarettes and to adjust the quantity of the surplus.

    Abstract translation: 通过X射线检测器的阵列监测多孔带式输送机下侧的烟草颗粒流的密度,以生成以流的连续增量表示不同薄层的密度的信号。 这些信号被处理成表示整个流的密度,烟草的填充力和流中的剩余量的信号。 经处理的信号用于调节去除剩余量的修剪器,以调节将颗粒送入流中的分配器,以调节香烟的硬度并调整剩余量。

    Apparatus for determining the transit time of ultrasonic pulses in a
fluid
    88.
    发明授权
    Apparatus for determining the transit time of ultrasonic pulses in a fluid 失效
    用于确定超声脉冲在流体中的传播时间的装置

    公开(公告)号:US4644483A

    公开(公告)日:1987-02-17

    申请号:US606249

    申请日:1984-05-02

    CPC classification number: G01P5/245

    Abstract: An apparatus for determining the transit time of ultrasonic pulses in a fluid has two spaced apart electro-acoustic converters (11, 20). A transmitter signal proportional to the sound pressure is applied via a controllable delay circuit (23) to a multiplication circuit (25) to which the received signal is also passed. The product signal is in turn passed to a transit time detector circuit (10) (FIG. 1).

    Abstract translation: 用于确定超声脉冲在流体中的传播时间的装置具有两个间隔开的电 - 声转换器(11,20)。 与声压成比例的发射机信号经由可控延迟电路(23)施加到接收信号也被通过的乘法电路(25)。 产品信号又传递到通行时间检测器电路(10)(图1)。

    Method and apparatus for producing a rod-shaped filler from several
types of smokable material
    89.
    发明授权
    Method and apparatus for producing a rod-shaped filler from several types of smokable material 失效
    用于从几种可吸收材料制造棒状填料的方法和装置

    公开(公告)号:US4616662A

    公开(公告)日:1986-10-14

    申请号:US622680

    申请日:1984-06-20

    Abstract: A continuous rod-like filler is formed in a cigarette rod making machine on an endless foraminous belt conveyor by depositing a row of spaced-apart batches consisting of a first type of tobacco at one side of the conveyor, holding the batches by suction, and showering tobacco particles of a second type onto and/or into the spaces between the batches. The density of successive increments of the filler is monitored by a pneumatic and/or radiation type detector, and the thus obtained density signals are used to generate control signals which regulate the density of the filler as well as control signals which are used to influence the batches, if and when necessary. For this purpose, the density signals can be processed to single out those which are attributable to monitoring of the density of successive batches, and the singled out density signals are then analyzed and used to vary one or more parameters of the batches.

    Abstract translation: 通过在输送机的一侧上沉积由第一种类型的烟草组成的一排隔开的批料,通过抽吸保持批料,在卷烟制棒机上形成连续的棒状填料, 将第二类烟草颗粒喷洒到批次之间和/或之间的空间之间。 填充物的连续增量的密度由气动和/或辐射型检测器监测,并且由此获得的密度信号用于产生调节填料密度的控制信号以及用于影响填料的控制信号 批量,如有必要的话。 为此,密度信号可以被处理成可以归因于监测连续批次密度的密度信号,然后分析并使用挑出的密度信号来改变批次的一个或多个参数。

    Calender
    90.
    发明授权
    Calender 失效
    日历

    公开(公告)号:US4534829A

    公开(公告)日:1985-08-13

    申请号:US459198

    申请日:1983-01-19

    CPC classification number: D21G1/00

    Abstract: A supercalender at the output of a paper machine includes two pairs of zone-wise deflection-controlled rollers. Each pair has a hard surface roller and a soft roller with an elastic outer layer or covering having a minimum hardness of 85.degree. Shore D. The hard rollers are disposed on one side and the soft rollers on the other side of the travel path of the paper.

    Abstract translation: 在造纸机输出端的超级砑光机包括两对区域偏转控制辊。 每对具有硬表面辊和具有弹性外层或具有最小硬度为85°Shore D的覆盖层的软辊。硬辊设置在一侧,并且软辊在另一侧的行进路径 纸。

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