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280 条记录 (耗时 0.028 秒)

    SECONDARY INTRODUCTION OF FLUID INTO VACUUM SYSTEM
    71.
    发明公开
    SECONDARY INTRODUCTION OF FLUID INTO VACUUM SYSTEM 有权
    流体在真空系统二级简介

    公开(公告)号：EP1753335A1

    公开(公告)日：2007-02-21

    申请号：EP05744040.6

    申请日：2005-05-05

    申请人： TENNANT COMPANY

    发明人： PIERCE, Paul, M. ,  HECKMAN, Frederick, A. ,  OBERLIN, Jeffrey, R.

    IPC分类号： A47L11/30

    CPC分类号： A47L11/302 ,  A47L11/4011 ,  A47L11/4041 ,  A47L11/4044 ,  A47L11/4083 ,  A47L11/4088

    摘要： An apparatus and method for minimizing the accumulation of soil and debris within a vacuum system of a surface maintenance machine is disclosed. A secondary fluid, such as pressurized cleaning solution, is sprayed into the vacuum system in order to reduce soil and debris accumulation within the vacuum system without applying additional fluid to a floor surface. In one embodiment of the invention, pressurized fluid is introduced directly into the vacuum extractor tool of a surface cleaning machine in order to dislodge accumulated debris on surfaces therein. A method of minimizing the accumulation of soil and debris within the vacuum system is also disclosed. The invention is applicable to a variety of portable and vehicle-based floor cleaning machines.

    Back EMF actuator control
    72.
    发明公开
    Back EMF actuator control 有权
    Gegen-EMK Aktuator Steuerung

    公开(公告)号：EP1600095A1

    公开(公告)日：2005-11-30

    申请号：EP05253133.2

    申请日：2005-05-20

    申请人： TENNANT COMPANY

    发明人： Bushey, Bruce P ,  Alowonle, Musibau O. ,  Mulin, Richard F. ,  Groschen, Paul L., Jr. ,  Erko, Robert J.

    IPC分类号： A47L11/40

    CPC分类号： A47L11/4011 ,  A47L11/4058

    摘要： A control system (100) for estimating the approximate relative position of an electric linear actuator (40) on a surface maintenance machine (10). The control system (100) includes means for selectively coupling the electric motor (38,41) of the linear actuator (40) to the electric power source (22), means for measuring or estimating the current and voltage of the electric motor (38,41), means for estimating the motor speed based on the measured values of current and voltage, and storage means for storing values of estimated motor speed and integrating means for determining approximate linear actuator position, wherein the integrating means integrates the motor speed over time to determine the approximate position of the linear actuator (40).

    摘要翻译： 一种用于估计表面维护机器（10）上的电动线性致动器（40）的近似相对位置的控制系统（100）。 控制系统（100）包括用于将线性致动器（40）的电动机（38,41）选择性地耦合到电源（22）的装置，用于测量或估计电动机（38）的电流和电压的装置 ，41），用于基于电流和电压的测量值估计电动机速度的装置，以及用于存储估计电动机速度的值的存储装置和用于确定近似线性致动器位置的积分装置，其中积分装置随着时间积分电动机速度 以确定线性致动器（40）的近似位置。

    The air purging of a liquid dispensing system of a surface cleaner
    73.
    发明公开
    The air purging of a liquid dispensing system of a surface cleaner 审中-公开
    电子邮件地址：üüine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine

    公开(公告)号：EP1595486A2

    公开(公告)日：2005-11-16

    申请号：EP05252872.6

    申请日：2005-05-10

    申请人： TENNANT COMPANY

    发明人： Field, Bruce F. ,  Pouliot, Joseph L.

    IPC分类号： A47L11/03

    CPC分类号： A47L11/03 ,  A47L11/30 ,  A47L11/4088 ,  A47L11/4097

    摘要： A surface cleaner (110) includes a liquid dispensing system (100) comprising a fluid flow path (226) configured to receive a flow of liquid (such as 216), a pump (228), an air purging component (360), and a valve actuator (374). The pump is in line with the fluid flow path and is configured to drive the flow of liquid through the fluid flow path. The air purging component includes an inlet (362) in line with the fluid flow path, an outlet (364), an airflow path (366) connecting the inlet and the outlet, and a valve (368) in line with the airflow path. The valve includes an open position in which the airflow path is open between the inlet and the outlet and a closed position in which the airflow path is closed between the inlet and the outlet. The valve actuator is connected to the valve and is configured to bias the valve in the open position when air is detected in the fluid flow path.

    摘要翻译： 表面清洁器（110）包括液体分配系统（100），液体分配系统（100）包括被配置为接收液体流（例如216）的流体流路（226），泵（228），空气净化部件（360）和 阀致动器（374）。 泵与流体流动路径一致，并被构造成驱动液体流过流体流动路径。 空气净化部件包括与流体流路一致的入口（362），出口（364），连接入口和出口的气流路径（366）和与气流路径一致的阀（368）。 所述阀包括打开位置，在所述打开位置中所述气流路径在所述入口和所述出口之间是敞开的，并且所述气流路径在所述入口与所述出口之间关闭的关闭位置。 阀致动器连接到阀，并且构造成当在流体流动路径中检测到空气时将阀偏置在打开位置。

    Counterbalance system for pickup hose support
    80.
    发明公开
    Counterbalance system for pickup hose support 审中-公开
    AusgleichssystemfüreinenSchlauchträger

    公开(公告)号：EP0965692A1

    公开(公告)日：1999-12-22

    申请号：EP99304537.6

    申请日：1999-06-10

    申请人： Tennant Company

    发明人： Boomgaarden, Steven L.

    IPC分类号： E01H1/08

    CPC分类号： E01H1/0836 ,  E01H1/08

    摘要： A vacuum trash collection vehicle has a debris container (182) and a source of vacuum (32), both located on the vehicle. There is a hose (174) connected at one end to the debris container and has the source of vacuum (32) applied thereto. The other end of the hose is open to form a collection nozzle (26). There is a boom for supporting the nozzle during use as a debris collection device with the boom including a rear support arm (40) pivotally mounted to the vehicle and supporting the hose in a rear area and a forward support arm (50) pivotally mounted to the rear arm and supporting the hose at an area forward of the rear support arm (40). There is a control element (80) accessible to the vehicle driver for moving the hose and nozzle. There is a spring (58) pivotally connected between the rear (40) and front support arms (50) which urges the front support arm in an upward direction to, at least in part, carry the weight of the hose for assisting the vehicle driver in operating the control element (72). An adjustment means (72) readily accessible to the driver allows him or her to vary the moment arm by which the spring (58) urges the front arm upward, thereby varying the height at which the front arm supports the hose.

    摘要翻译： 真空垃圾收集车辆具有位于车辆上的碎屑容器（182）和真空源（32）。 有一个软管（174），其一端连接到碎片容器上并具有施加到其上的真空源（32）。 软管的另一端打开以形成收集喷嘴（26）。 在使用期间，存在用于支撑喷嘴作为碎屑收集装置的吊杆，其中吊臂包括枢转地安装在车辆上的后支撑臂（40），并将软管支撑在后部区域中，以及向前支撑臂（50）枢转地安装到 后臂并且在后支撑臂（40）的前方的区域处支撑软管。 车辆驱动器上有一个控制元件（80），用于移动软管和喷嘴。 在后部（40）和前支撑臂（50）之间枢转地连接有一个弹簧（58），该弹簧（58）向上推动前支撑臂，至少部分地承载着软管的重量，用于辅助车辆驾驶员 在操作所述控制元件（72）时。 驾驶员容易接近的调节装置（72）允许他或她改变弹簧（58）向上推动前臂的力矩臂，从而改变前臂支撑软管的高度。