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    Grass-cutting tractor with improved operating features
    4.
    发明授权
    Grass-cutting tractor with improved operating features 失效
    具有改进操作特点的割草拖拉机

    公开(公告)号：US06668530B2

    公开(公告)日：2003-12-30

    申请号：US10097222

    申请日：2002-03-13

    申请人： Robert D. Kern ,  Gerald C. Ruehlow ,  Steven J. Wilcox ,  Francis X. Wedel

    发明人： Robert D. Kern ,  Gerald C. Ruehlow ,  Steven J. Wilcox ,  Francis X. Wedel

    IPC分类号： A01D6900

    CPC分类号： A01D34/006 ,  A01D2101/00

    摘要： A grass-cutting tractor has an internal combustion engine, an apparatus which changes engine speed, and a generator. The apparatus includes a user-manipulated mechanism having a plurality of operating positions. Two of the operating positions are each identified by different grass-related mnemonics, e.g., NORMAL, HEAVY, MEDIUM, HIGH, REGULAR or TALL, which relate to the height of the grass to be cut and one of the positions corresponds to operation of the generator.

    摘要翻译： 割草拖拉机具有内燃机，改变发动机转速的装置和发电机。 该装置包括具有多个操作位置的用户操纵机构。 其中两个操作位置各自由不同的草相关的助记符标识，例如正常，重度，中等，高，常数或TALL，其涉及要切割的草的高度，并且其中一个位置对应于 发电机。

    Transfer mechanism for transferring power between a utility source and a stand-by generator
    5.
    发明授权
    Transfer mechanism for transferring power between a utility source and a stand-by generator 有权
    用于在公用电源和待机发电机之间传输电力的传送机构

    公开(公告)号：US06181028B2

    公开(公告)日：2001-01-30

    申请号：US09377722

    申请日：1999-08-19

    申请人： Robert D. Kern ,  Gerald C. Ruehlow ,  Francis X. Wedel ,  Jeffrey J. Jonas ,  John G. Bagley ,  Steven J. Wilcox

    发明人： Robert D. Kern ,  Gerald C. Ruehlow ,  Francis X. Wedel ,  Jeffrey J. Jonas ,  John G. Bagley ,  Steven J. Wilcox

    IPC分类号： H02J714

    CPC分类号： H02J9/06 ,  H02J9/08 ,  H02J2009/068 ,  Y10T307/615

    摘要： A transfer mechanism is provided for transferring the supply of power between a generator and utility source. The transfer mechanism includes a monitoring system for monitoring the power supplied by the utility source. The monitoring system starts the generator in response to a power outage from the utility source and stops the generator in response to the restoration of power from the utility source. A power relay has a utility input connectable to the utility source, a generator input connectable to the generator, an output connectable to a load, and a movable contact for selectively interconnecting one of the inputs to the output in response to the generation of power by the generator.

    摘要翻译： 提供了一种用于在发电机和公用电源之间传递电力供应的传送机构。 传送机构包括用于监测由公用电源提供的电力的监视系统。 监控系统响应于来自公用电源的停电而启动发电机，并且响应于来自公用电源的电力的恢复而停止发电机。 电力继电器具有可连接到公用电源的实用输入，可连接到发电机的发电机输入端，可连接到负载的输出端和可动触点，用于响应于功率的产生而选择性地将输入中的一个与输出相互连接 发电机。

    Relay for a transfer mechanism which transfers power between a utility source and a stand-by generator
    6.
    发明授权
    Relay for a transfer mechanism which transfers power between a utility source and a stand-by generator 有权
    用于在公用电源和待机发电机之间传输电力的传送机构的继电器

    公开(公告)号：US06686547B2

    公开(公告)日：2004-02-03

    申请号：US09772204

    申请日：2001-01-29

    申请人： Robert D. Kern ,  Gerald C. Ruehlow ,  Francis X. Wedel ,  Jeffrey J. Jonas

    发明人： Robert D. Kern ,  Gerald C. Ruehlow ,  Francis X. Wedel ,  Jeffrey J. Jonas

    IPC分类号： H01H102

    CPC分类号： H02J9/06 ,  H02J9/08 ,  H02J2009/068 ,  Y10T307/615

    摘要： A relay is provided for a transfer mechanism which transfers power between a utility source and a stand-by electrical generator. The relay incorporates contacts formed from two distinct materials. A backing portion of each contact is formed from copper and a contacting portion is deposited on the backing portion. The contacting portion is formed from tungsten. The arrangement of the contact minimizes the potential for failure of the transfer mechanism when the transfer mechanism is exposed to significant current and/or heating during operation thereof.

    摘要翻译： 为传送机构提供继电器，该传送机构在公用电源和待机发电机之间传输电能。 继电器包含由两种不同材料形成的触点。 每个接触件的背衬部分由铜形成，并且接触部分沉积在背衬部分上。 接触部分由钨形成。 当传送机构在其操作期间暴露于显着的电流和/或加热时，接触的布置使传递机构的故障的可能性最小化。

    Arc welder and method providing use-enhancing features
    7.
    发明授权
    Arc welder and method providing use-enhancing features 失效
    电弧焊机和方法提供使用增强功能

    公开(公告)号：US5861604A

    公开(公告)日：1999-01-19

    申请号：US822009

    申请日：1997-03-24

    申请人： Graham W. McLean ,  Jeffery J. Jonas ,  Robert D. Kern ,  Gerald C. Ruehlow ,  Francis X. Wedel

    发明人： Graham W. McLean ,  Jeffery J. Jonas ,  Robert D. Kern ,  Gerald C. Ruehlow ,  Francis X. Wedel

    IPC分类号： B23K9/067 ,  B23K9/10 ,  F02B63/04 ,  H02K21/48

    CPC分类号： H02K21/48 ,  B23K9/0671 ,  B23K9/1006 ,  F02B63/04

    摘要： A "hot start" method for arc welding includes selecting a first weld current, setting a time interval, striking an arc, flowing a second, higher weld current through the welding rod and then, after a brief time interval, reducing the current through the rod to the value of the first weld current. Also disclosed is a new arc welder stator having two groups of slots around a core. The group of larger slots contains the weld current windings and slots in the group of smaller slots contain windings for timing, gate voltage, battery charging, auxiliary power and the like. A new cooling apparatus for an arc welder has an air duct and a "double-bladed" fan for flowing air along several paths and cooling both the welder control section and the generating section. A new method for electronically controlling engine speed in an engine-driven arc welder is also disclosed. Such method includes manipulating a current-selecting device, contacting a work piece with a welding rod, accelerating the engine to an elevated speed and then either maintaining such speed or reducing it, depending upon the value of weld current selected.

    摘要翻译： 电弧焊的“热启动”方法包括选择第一焊接电流，设定时间间隔，打弧，使第二较高焊接电流流过焊条，然后在短时间间隔之后，减少通过 杆到第一焊接电流的值。 还公开了一种新的电弧焊机定子，其具有围绕芯的两组槽。 较大槽的组包含焊接电流绕组，并且在较小槽的组中的槽包含用于定时，栅极电压，电池充电，辅助功率等的绕组。 一种用于电弧焊机的新的冷却装置具有一个风道和一个“双叶片”风扇，用于沿着几条路径流动空气，同时冷却焊机控制部分和生成部分。 还公开了一种用于在发动机驱动的电弧焊机中电子控制发动机转速的新方法。 这种方法包括操纵电流选择装置，使工件与焊条接触，根据所选择的焊接电流的值，将发动机加速到高速，然后保持这种速度或减小。

    Apparatus and method for positioning an engine throttle
    8.
    发明授权
    Apparatus and method for positioning an engine throttle 失效
    用于定位发动机节气门的装置和方法

    公开(公告)号：US06365982B1

    公开(公告)日：2002-04-02

    申请号：US09281255

    申请日：1999-03-30

    申请人： Robert Iles ,  Robert D. Kern ,  Michael T. Orlikowski ,  Gerald C. Ruehlow ,  Bijun Shi ,  Francis X. Wedel

    发明人： Robert Iles ,  Robert D. Kern ,  Michael T. Orlikowski ,  Gerald C. Ruehlow ,  Bijun Shi ,  Francis X. Wedel

    IPC分类号： F02N1106

    CPC分类号： H02P9/04 ,  F02D41/0205 ,  F02D41/083

    摘要： A method for controlling the speed of an engine driving a generator supplying electrical current to a load includes the steps of monitoring the current, increasing the speed when the current increases and decreasing the speed when the current decreases. The governor apparatus used to carry out the method includes a microcontroller having a current and frequency look-up table embedded in it. For some part of the monitoring step, the engine runs at a first speed, e.g., idle speed, or some moderate speed above idle speed. The increasing step includes detecting an increase in the current to a value, determining from the look-up table the frequency corresponding to the value and increasing the speed of the engine until the frequency of the current is the frequency corresponding to the value. To state it in other words, the new method and apparatus control the engine at a modest speed when the generator is unloaded or lightly loaded and increases engine speed and current frequency with increases in generator load.

    摘要翻译： 用于控制向负载提供电流的发电机驱动发动机的速度的方法包括监视电流的步骤，当电流增加时增加速度，并且当电流减小时降低速度。 用于执行该方法的调速器装置包括具有嵌入其中的电流和频率查找表的微控制器。 对于监测步骤的某些部分，发动机以第一速度（例如空转速度）或高于怠速速度的中等速度运行。 增加步骤包括检测电流增加到一个值，从查找表中确定与该值对应的频率并增加发动机的速度，直到电流的频率是与该值对应的频率。 换句话说，当发电机卸载或轻载时，新的方法和装置以适度的速度控制发动机，并随着发电机负载的增加而提高发动机转速和电流频率。

    Method for exercising a stand-by electrical generator
    10.
    发明授权
    Method for exercising a stand-by electrical generator 无效
    行使待机发电机的方法

    公开(公告)号：US07230345B2

    公开(公告)日：2007-06-12

    申请号：US11033579

    申请日：2005-01-12

    申请人： Peter D. Winnie ,  Francis X. Wedel ,  Robert D. Kern ,  Alan P. Dietrich ,  Douglas R. Clement

    发明人： Peter D. Winnie ,  Francis X. Wedel ,  Robert D. Kern ,  Alan P. Dietrich ,  Douglas R. Clement

    IPC分类号： F02N11/06

    CPC分类号： F02D41/021 ,  F02D29/06 ,  F02D31/001

    摘要： A method is provided for exercising an engine-driven, electrical generator. The generator has a first operation mode wherein the generator generates a predetermined output voltage at a predetermined frequency with the engine running a predetermined operating speed and a second exercise mode. The method includes the step of running the engine at a predetermined exercise speed with the generator in the exercise mode. The predetermined exercise speed is in the range of 40% to 70% of the predetermined operating speed of the engine. In addition, in the exercise mode, the generator generates an exercise voltage that is less than the predetermined output voltage.

    摘要翻译： 提供了一种用于行使发动机驱动的发电机的方法。 发电机具有第一操作模式，其中发电机以预定的频率产生预定的输出电压并且发动机运行预定的操作速度和第二运动模式。 该方法包括在发动机处于运动模式下以预定的运动速度运行发动机的步骤。 预定的运动速度在发动机的预定运行速度的40％至70％的范围内。 此外，在运动模式中，发电机产生小于预定输出电压的运动电压。