公开(公告)号：US06253644B1

公开(公告)日：2001-07-03

申请号：US09514131

申请日：2000-02-28

申请人： David M Duquette

发明人： David M Duquette

IPC分类号： B25B1300

CPC分类号： B23P19/069 ,  B25B17/00 ,  B25B23/1427

摘要： A torque wrench interfaces with a one or more fasteners intended to be tightened or loosened and includes a main housing with two or more preset torque devices which establishes a torque range insuring that the fasteners will not be tightened neither too tight nor too loose. A drive shaft protrudes from the main housing and rotatably drives a drive gear disposed in the main housing in which when rotated, drives the geared torque devices positioned on either side of the drive gear. A helical spring connects two torque pistons and adjustably applies a regulated torque to the driven torque piston in response to movement of the drive torque piston. The torque pistons are in a torque piston casing and are connected by irregular opposing surfaces urged together by the helical spring that allow for the torque pistons to rotate in relation to each other in one rotational direction only and allows the preset torque device to be enabled only when tightening a fastener in the clockwise direction. When the torque device is turned in the counter clockwise direction the surfaces lock together disabling the preset torque limit allowing the fastener to be loosened regardless to how much torque is applied to the fastener.

摘要翻译： 扭矩扳手与要紧固或松开的一个或多个紧固件接合，并且包括具有两个或更多个预设扭矩装置的主壳体，其建立扭矩范围，确保紧固件不会紧固也不会松紧。 驱动轴从主壳体突出，并且可旋转地驱动设置在主壳体中的驱动齿轮，其中当旋转时，驱动位于驱动齿轮的任一侧的齿轮传动扭矩装置。 螺旋弹簧连接两个扭矩活塞，并响应于驱动扭矩活塞的移动而将调节的扭矩可调节地施加到从动转矩活塞。 扭矩活塞位于扭矩活塞壳体中，并且由通过螺旋弹簧推动在一起的不规则相对表面连接，允许扭矩活塞在一个旋转方向上相对于彼此旋转，并允许预设的扭矩装置仅被启用 当顺时针方向拧紧紧固件时。 当扭矩装置沿逆时针方向旋转时，表面锁定在一起，禁止预设扭矩极限，从而允许紧固件松动，而不管施加到紧固件的扭矩多大。

公开(公告)号：US06298562B1

公开(公告)日：2001-10-09

申请号：US09387383

申请日：1999-09-02

申请人： David M Duquette

发明人： David M Duquette

IPC分类号： B26B1100

CPC分类号： B26B11/00

摘要： An apparatus for marking and cutting of construction material, wherein the apparatus is adapted for use with a flexible measuring tape. The apparatus utilizes a main body in which a measuring tape is slideably engaged into a retaining slot. A protruding cutting wheel or marking material is set at a desired dimension and guided against a construction material in order to mark or cut the material at a uniform width. Movement of the apparatus along the work piece is easily accomplished since the angled tip or leader of a flexible measuring tape is used as a fence capable of sliding along the work piece with movement of the apparatus.

摘要翻译： 一种用于标记和切割建筑材料的装置，其中该装置适于与柔性卷尺一起使用。 该设备利用其中测量带可滑动地接合到保持槽中的主体。 突出的切割轮或标记材料被设置在期望的尺寸并且被引导抵靠建筑材料以便以均匀的宽度标记或切割材料。 装置沿着工件的移动是容易实现的，因为柔性卷尺的成角度的尖端或者引导件被用作通过设备运动沿着工件滑动的挡板。