公开(公告)号：US06803683B2

公开(公告)日：2004-10-12

申请号：US10682710

申请日：2003-10-09

申请人： Daniel Bone ,  George CH Fung

发明人： Daniel Bone ,  George CH Fung

IPC分类号： H01H300

CPC分类号： G01C9/10 ,  B25F5/022 ,  B25H1/0085 ,  G01C9/06 ,  G01C2009/066 ,  G01C2009/107 ,  H01H13/08 ,  H01H13/64 ,  H01H2009/065 ,  Y10T408/21

摘要： An alignment device (10) for indicating alignment between two component parts, the first component part (12) having an arcuate track (14) with a track following member in the form of a ball bearing (28) to follow the track under the influence of gravity to seek an equilibrium position. The body having a signal input (18) and a signal output port (20) and the second component part comprising an alignment member axially mounted within the body in restraining engagement with the track following member (28) so as to be rotationally displaceable within the body in response to displacement of the member 28, whereby alignment between the alignment member and the input and output ports in response to displacement of the alignment member by the ball bearing, effects operation of an indicator means to provide an indication that such alignment between the alignment member and the alignment ports has been achieved. Further, there is provided a level indicator utilising such an alignment device, together with a power tool utilising such a level indicator to determine when such a tool is held in a horizontal or vertical plane.

摘要翻译： 一种用于指示两个部件之间的对准的对准装置（10），所述第一部件（12）具有弓形轨道（14），其具有呈滚珠轴承（28）形式的轨道跟随构件，以在所述影响下跟随所述轨道 的重力寻求平衡的位置。 主体具有信号输入端（18）和信号输出端口（20），第二部件部件包括轴向安装在主体内的对准构件，与轨道跟随构件（28）限制接合，以便可旋转移位 响应于构件28的位移，由此对准构件和输入和输出端口之间的对准响应于对准构件由球轴承的移动而导致指示装置的操作，以提供指示 对准构件和对准端口已经实现。此外，提供了一种利用这种对准装置的电平指示器，以及利用这种电平指示器的电动工具，以确定这种工具何时保持在水平或垂直平面中。

公开(公告)号：US07069662B2

公开(公告)日：2006-07-04

申请号：US10855903

申请日：2004-05-27

申请人： George CH Fung ,  Patrick CK Kwok ,  Vincent P. Cooper ,  Leo Driessen ,  Chan Ka Shing

发明人： George CH Fung ,  Patrick CK Kwok ,  Vincent P. Cooper ,  Leo Driessen ,  Chan Ka Shing

IPC分类号： B23B45/14 ,  G01C9/00

CPC分类号： B25H1/0085

摘要： A power tool includes a leveling device which includes a rotatable member which seeks an equilibrium position which corresponds to a level position. A rotating device includes a member which enables passage of a beam. An electrical circuit which includes an emitting device, a receiving device and an indicating device is electrically coupled such that upon activation, the emitting device emits a beam which passes through the beam passing member. The beam is received by the receiving device which, in turn, activates the indicator device. The indicator is generally a light emitting device which has a varying brightness so that the user may view the indicator from all sides of the power tool.

公开(公告)号：US06552904B2

公开(公告)日：2003-04-22

申请号：US09928849

申请日：2001-08-13

申请人： George CH Fung

发明人： George CH Fung

IPC分类号： H05K720

CPC分类号： B25F5/008 ,  H01H9/061 ,  H01H9/52 ,  H01H2009/065

摘要： A power tool such as a drill has an activation switch which energizes a motor which, in turn, drives an output. The switch includes a field effect transistor coupled to a heat sink to dissipate heat from the transistor. The heat sink is positioned at a free end of the handle remote from the switch.

摘要翻译： 诸如钻头的电动工具具有激励开关，其激励电动机，其又驱动输出。 该开关包括耦合到散热器以从晶体管散热的场效应晶体管。 散热器位于远离开关的手柄的自由端。