Motor drive circuit with reverse-battery protection
    1.
    发明授权
    Motor drive circuit with reverse-battery protection 失效
    电机驱动电路带反向电池保护

    公开(公告)号:US5012381A

    公开(公告)日:1991-04-30

    申请号:US406627

    申请日:1989-09-13

    IPC分类号: H02H7/08 H02H9/04 H02H11/00

    摘要: A relay-less drive circuit for an inductive load preferably uses a transistor switch to couple the load to a battery, and provides a path for recirculating current around the load, which path includes a recirculating diode coupled in series with another transistor switch, such as an FET. the FET's drain and source terminals are connected to the recirculating diode, and the FET is biased, such that the FET is on when the battery is connected to the load with its nominal polarity, and the FET is off when the polarity of the battery is reversed.

    摘要翻译: 用于感性负载的无继电器驱动电路优选地使用晶体管开关将负载耦合到电池,并且提供用于在负载周围循环电流的路径,该路径包括与另一个晶体管开关串联耦合的再循环二极管,例如 一个FET。 FET的漏极和源极端子连接到再循环二极管,并且FET被偏置,使得当电池以其标称极性连接到负载时,FET导通,并且当电池的极性为 逆转

    Filter bag and process of manufacture
    2.
    发明授权
    Filter bag and process of manufacture 失效
    过滤袋和制造工艺

    公开(公告)号:US5755962A

    公开(公告)日:1998-05-26

    申请号:US756733

    申请日:1996-11-26

    摘要: A prefilter bag for insertion into a standard filtration bag apparatus, having a filtration assembly comprising a seamless filter membrane having uniform pore openings preselected within the range of between about 2 and about 50 microns (.mu.) and a linearly channeled, non-deformable, semi-rigid liquid transport thermoplastic sheet in the form of a molded webbing or netting in contact with the upper surface of the filter membrane; said webbing having marginal edges which are coextensive with those of the membrane; said assembly adapted to be shaped by continuous winding of the assembly upon itself for 2 to 5 complete convolutions around a tubular mandrel so as to form a cylindrical tube or cone; the bottom of said cylinder being sealed to prevent liquid leakage and the top of said cylinder, forming a liquid inlet opening, being sealed to a retaining ring adapted to be inserted in, attached to or sealed to an outer, retaining ring of a non-wrapped filter bag. The inlet of the wrapped cylindrical bag is optionally fitted with vortex directing means to enhance a linearly tangential direction of the entering liquid against the walls of the inside membrane. The invention also pertains to a method for the fabrication and use of the present filtration bag.

    摘要翻译: 一种用于插入到标准过滤袋装置中的预过滤袋,其具有过滤组件,该过滤组件包括预定在约2至约50微米(μ)范围内的均匀孔隙的无缝过滤膜,以及线性通道的,不可变形的半 以与过滤膜的上表面接触的模制织带或网的形式的刚性液体输送热塑性片材; 所述织带具有与膜的边缘共同的边缘; 所述组件适于通过将组件连续卷绕在其自身上以通过围绕管状心轴2至5个完整的卷绕而成形,以便形成圆柱形管或锥体; 所述气缸的底部被密封以防止液体泄漏,并且所述气缸的顶部形成液体入口,被密封到适于被插入,密封到非保持环的外部保持环的保持环上, 包装过滤袋。 包裹的圆柱形袋的入口任选地装配有涡流引导装置,以增强进入液体抵靠内膜的壁的线性切线方向。 本发明还涉及一种用于制造和使用本发明的过滤袋的方法。

    Method and circuit for increasing the life of solenoid valves
    4.
    发明授权
    Method and circuit for increasing the life of solenoid valves 失效
    增加电磁阀使用寿命的方法和电路

    公开(公告)号:US5749388A

    公开(公告)日:1998-05-12

    申请号:US708157

    申请日:1996-08-27

    IPC分类号: F16K31/06

    CPC分类号: F16K31/0689 Y10T137/0318

    摘要: The method provides for applying to the solenoid valve, during its movement of closure by the action of a spring, a voltage signal the purpose of which is to brake this closure movement. The circuit comprises a static switch connected between the coil of the solenoid valve and earth, and an intermediate tap between these two components from which a voltage signal is withdrawn and is transformed by a microcontroller into a control signal for the static switch, such as to apply the braking signal to the solenoid valve.

    摘要翻译: 该方法提供了在电磁阀通过弹簧的作用在其闭合运动期间施加电压信号,其目的是制动该闭合运动。 该电路包括连接在电磁阀的线圈和地之间的静态开关以及这两个组件之间的中间抽头,电压信号从该组件中抽出并由微控制器转换成静态开关的控制信号,例如 将制动信号施加到电磁阀。

    Enzyme infusion process for preparing whole peeled citrus fruit
    5.
    发明授权
    Enzyme infusion process for preparing whole peeled citrus fruit 失效
    用于制备全脂桉树果实的酶输送方法

    公开(公告)号:US5200217A

    公开(公告)日:1993-04-06

    申请号:US783013

    申请日:1991-10-25

    IPC分类号: A23L1/212 A23L1/00 A23N7/01

    摘要: A process for peeling fresh citrus fruit to provide peeled whole fruit, with ease of peeling and with limited amounts of adhering albedo. The fresh citrus fruit are initially chilled to a temperature well below room temperature, preferably less than about 10 degrees C. The chilled fruit are then scored so as to penetrate the albedo layer, but not the underlying juice sections, and the scored fruit are then immersed in an aqueous solution of a pectinase enzyme at an initial temperature of about 35 degrees C. The enzyme solution is then infused into the fruit, and after holding the infusion-treated fruit in the solution for a prescribed time period, without application of additional heat, the peel can be readily removed from the whole fruit. Chilling the fruit before infusing the pectinase enzyme allows the core of the fruit to reach a temperature low enough to insure that the pectinase enzyme retains its full effectiveness only in the region of the peel and not at the membrane connecting together the segments of the fruit. This insures that the segments remain connected together, to provide peeled whole fruit.

    Cushioned strap
    6.
    发明授权
    Cushioned strap 失效
    缓冲带

    公开(公告)号:US4853275A

    公开(公告)日:1989-08-01

    申请号:US924194

    申请日:1986-10-27

    摘要: Cushioned strap including a continuously woven or knitted fabric having two flat portions separated by a tubular portion, and a plurality of length of yarn positioned in the tubular portion and extending substantially freely through the tubular portion between the end portions thereof. The cushioned strap provides good appearance and comfort and can be manufactured economically.

    摘要翻译: 缓冲带,包括具有由管状部分分开的两个平坦部分的连续机织或针织织物,以及定位在管状部分中的多根纱线,并且基本上自由地延伸穿过其端部之间的管状部分。 缓冲表带提供良好的外观和舒适性,可以经济地制造。