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    Self-oscillating buck mode battery charger
    3.
    发明授权
    Self-oscillating buck mode battery charger 失效
    自振式降压模式电池充电器

    公开(公告)号：US5783930A

    公开(公告)日：1998-07-21

    申请号：US782432

    申请日：1997-01-15

    申请人： Larry T. Albert ,  Frank Faez Athari

    发明人： Larry T. Albert ,  Frank Faez Athari

    IPC分类号： H02J7/02 ,  H02J7/04 ,  H02J7/16

    CPC分类号： H02J7/022

    摘要： A self-oscillating buck mode battery charger apparatus 10. The apparatus 10 includes a main switching transistor 22, a first control transistor 34 and a second control transistor 36. The control transistors 34 and 36 are arranged such that neither control transistor sees the full input mains voltage across input terminals 12 of the apparatus 10 when the switching transistor 22 is turned off. An alternative embodiment of the invention includes a high and low main sensing circuit 102 in which a controller 120 is used to detect an excessively high mains voltage condition as well as an undesirably low mains voltage condition. The controller 120 turns off a PWM control circuit 104 when either condition is present for a predetermined length of time. Turning off the PWM control circuit 104 causes the main switching transistor 106 to be turned off, thereby preventing damage to the components of the charger apparatus 100. The charger apparatus is especially well-suited for applications where a rectified DC mains voltage is used to provide a charging current to a rechargeable battery.

    摘要翻译： 自振荡降压模式电池充电器装置10.装置10包括主开关晶体管22，第一控制晶体管34和第二控制晶体管36.控制晶体管34和36被布置成使得控制晶体管看不到全输入 当开关晶体管22断开时，设备10的输入端子12两端的电源电压。 本发明的一个替代实施例包括高低的主感测电路102，其中控制器120用于检测过高的电源电压状况以及不期望的低电源电压状况。 当任一条件存在预定时间长度时，控制器120关断PWM控制电路104。 关闭PWM控制电路104使得主开关晶体管106截止，从而防止对充电器装置100的部件的损坏。充电器装置特别适用于使用整流的直流电源电压来提供 充电电流到可充电电池。

    Joist drill
    5.
    发明授权
    Joist drill 有权
    Jo钻

    公开(公告)号：US07708505B2

    公开(公告)日：2010-05-04

    申请号：US11868012

    申请日：2007-10-05

    申请人： Robert J. Opsitos, Jr. ,  Christopher R. Held ,  Robert S. Gehret ,  Richard J. Heavel ,  Daniel Puzio ,  Craig A. Schell ,  Larry T. Albert ,  Thomas J. Bodine ,  Daniel L. Gregory

    发明人： Robert J. Opsitos, Jr. ,  Christopher R. Held ,  Robert S. Gehret ,  Richard J. Heavel ,  Daniel Puzio ,  Craig A. Schell ,  Larry T. Albert ,  Thomas J. Bodine ,  Daniel L. Gregory

    IPC分类号： B23B45/14

    CPC分类号： B23B45/02 ,  Y10T408/03 ,  Y10T408/5653 ,  Y10T408/65 ,  Y10T408/6786 ,  Y10T408/98

    摘要： A power tool for drilling a hole in a workpiece made of wood or a wood material. The power tool generally includes a tool housing defining a handle and a motor contained within the tool housing that includes an output shaft that spins about a motor axis. A gear housing is connected to the tool housing. An output spindle is supported for rotation about a spindle axis in the gear housing. The spindle axis is disposed about ninety degrees from the motor axis. A gear portion on the output shaft is engaged to a gear portion on the output spindle. The motor and the gear portions are configured to rotate the output spindle at a speed in range from about five thousand revolutions per minute to about twenty-five thousand revolutions per minute. A cutting member is connected to the output spindle. The cutting member includes fluted cutting blades. A carriage assembly includes a base member and a head member connected by a first post having a first compliant member and a second post. The head member slides relative to the first and second posts and against a force exerted by the first compliant member when the head member is moved toward the base member to pass the cutting member through the base member to engage the workpiece. The base member includes a generally planar face on a bottom surface of the base member that is generally perpendicular to the spindle axis.

    摘要翻译： 用于在由木材或木材制成的工件上钻孔的电动工具。 电动工具通常包括限定手柄的工具壳体和容纳在工具壳体内的电动机，其包括围绕电动机轴线旋转的输出轴。 齿轮箱连接到工具壳体。 输出主轴被支撑用于围绕齿轮箱中的主轴轴线旋转。 主轴轴距离电机轴线约90度。 输出轴上的齿轮部分接合到输出主轴上的齿轮部分。 马达和齿轮部分构造成以大约五千转/分钟到每分钟二万五千转的速度旋转输出主轴。 切割构件连接到输出主轴。 切割构件包括带槽的切割刀片。 托架组件包括基部构件和通过具有第一顺应构件和第二柱的第一柱连接的头构件。 头部构件相对于第一和第二柱滑动并抵抗第一柔性构件施加的力，当头部构件朝向基部构件移动以使切割构件穿过基部构件以接合工件时。 基部构件包括大致垂直于主轴轴线的基部构件的底表面上的大致平坦的面。

    PROTECTIVE REDUNDANT SUBSYSTEM FOR POWER TOOLS
    7.
    发明申请
    PROTECTIVE REDUNDANT SUBSYSTEM FOR POWER TOOLS 有权
    电动工具保护性冗余子系统

    公开(公告)号：US20110058288A1

    公开(公告)日：2011-03-10

    申请号：US12875504

    申请日：2010-09-03

    申请人： John C. VANKO ,  Larry T. Albert ,  Michael K. Forster ,  Bhanuprasad V. Gorti ,  Jason K. Leh ,  Garrett P. McCormick ,  Samuel G. Woods ,  David R. Beers

    发明人： John C. VANKO ,  Larry T. Albert ,  Michael K. Forster ,  Bhanuprasad V. Gorti ,  Jason K. Leh ,  Garrett P. McCormick ,  Samuel G. Woods ,  David R. Beers

    IPC分类号： H02H7/09

    CPC分类号： H02P25/145 ,  B25F5/00 ,  H02H3/023 ,  H02H3/247 ,  H02H7/0827 ,  H02H7/093 ,  H02K7/145 ,  H02P3/22 ,  H02P7/00 ,  H02P23/26 ,  H02P29/10

    摘要： A protective redundancy circuit is provided for a power tool having an electric motor. The protective redundant subsystem is comprised of: a motor switch coupled in series with the motor; a motor control module that controls the switching operation of the motor switch; and a protective control module that monitors switching operation of the motor switch and disables the power tool when the switching operation of the motor switch fails. In the context of an AC powered tool, the switching operation of the motor switch is correlated to and synchronized to the waveform of the AC input signal. During each cycle or half cycle, the motor control module introduces a delay period before closing the motor switch and the protective control module determines the operational status of the motor switch by measuring the voltage across the motor switch during the delay period.

    摘要翻译： 为具有电动机的电动工具提供保护冗余电路。 保护冗余子系统包括：与电动机串联耦合的电动机开关; 控制电动机开关的开关动作的电动机控制模块; 以及保护控制模块，用于监视电动机开关的切换操作，并且在电动机开关的切换操作失败时禁用电动工具。 在交流电动工具的上下文中，电动机开关的开关操作与AC输入信号的波形相关并与其同步。 在每个周期或半周期期间，电机控制模块在关闭电动机开关之前引入延迟时间，并且保护控制模块通过在延迟期间测量电动机开关两端的电压来确定电动机开关的操作状态。

    JOIST DRILL
    10.
    发明申请
    JOIST DRILL 有权
    JOIST钻石

    公开(公告)号：US20090145520A1

    公开(公告)日：2009-06-11

    申请号：US11868012

    申请日：2007-10-05

    申请人： Robert J. Opsitos, JR. ,  Christopher R. Held ,  Robert S. Gehret ,  Richard J. Heavel ,  Daniel Puzio ,  Craig A. Schell ,  Larry T. Albert ,  Thomas J. Bodine ,  Daniel L. Gregory

    发明人： Robert J. Opsitos, JR. ,  Christopher R. Held ,  Robert S. Gehret ,  Richard J. Heavel ,  Daniel Puzio ,  Craig A. Schell ,  Larry T. Albert ,  Thomas J. Bodine ,  Daniel L. Gregory

    IPC分类号： B27M1/00 ,  B23B47/00 ,  B27C3/00

    CPC分类号： B23B45/02 ,  Y10T408/03 ,  Y10T408/5653 ,  Y10T408/65 ,  Y10T408/6786 ,  Y10T408/98

    摘要： A power tool for drilling a hole in a workpiece made of wood or a wood material. The power tool generally includes a tool housing defining a handle and a motor contained within the tool housing that includes an output shaft that spins about a motor axis. A gear housing is connected to the tool housing. An output spindle is supported for rotation about a spindle axis in the gear housing. The spindle axis is disposed about ninety degrees from the motor axis. A gear portion on the output shaft is engaged to a gear portion on the output spindle. The motor and the gear portions are configured to rotate the output spindle at a speed in range from about five thousand revolutions per minute to about twenty-five thousand revolutions per minute. A cutting member is connected to the output spindle. The cutting member includes fluted cutting blades. A carriage assembly includes a base member and a head member connected by a first post having a first compliant member and a second post. The head member slides relative to the first and second posts and against a force exerted by the first compliant member when the head member is moved toward the base member to pass the cutting member through the base member to engage the workpiece. The base member includes a generally planar face on a bottom surface of the base member that is generally perpendicular to the spindle axis.

    摘要翻译： 用于在由木材或木材制成的工件上钻孔的电动工具。 电动工具通常包括限定手柄的工具壳体和容纳在工具壳体内的电动机，其包括围绕电动机轴线旋转的输出轴。 齿轮箱连接到工具壳体。 输出主轴被支撑用于围绕齿轮箱中的主轴轴线旋转。 主轴轴距离电机轴线约90度。 输出轴上的齿轮部分接合到输出主轴上的齿轮部分。 马达和齿轮部分构造成以大约五千转/分钟到每分钟二万五千转的速度旋转输出主轴。 切割构件连接到输出主轴。 切割构件包括带槽的切割刀片。 托架组件包括基部构件和通过具有第一顺应构件和第二柱的第一柱连接的头构件。 头部构件相对于第一和第二柱滑动，并抵抗第一柔性构件施加的力，当头部构件朝向基部构件移动以使切割构件穿过基部构件以接合工件时。 基部构件包括大致垂直于主轴轴线的基部构件的底表面上的大致平坦的面。