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1.发明授权D.C. Subfractional horsepower motor with flux shunt for variable RPM adjustment 失效D.C.小分力马达带流量分流用于可变转速调节
公开(公告)号：US4278907A
公开(公告)日：1981-07-14
申请号：US59295
申请日：1979-07-20
摘要： For adjusting the rpm with the assistance of mechanical regulators consisting of low-retentivity magnetic material, the air gap between the rotor and the stator, and/or the magnetic return between the stator field poles of opposite polarity, and/or a magnetic shunt is adjusted. The illustrative embodiments are particularly provided for d.c. subfractional horsepower motors for the drive of dental tools.
摘要翻译： 为了通过由低保持性磁性材料组成的机械调节器的辅助来调节转速，转子和定子之间的空气间隙和/或相反极性的定子磁极之间的磁返回和/或磁分流是 调整。 说明性实施例特别提供于直流 用于驱动牙科工具的分马力马达。
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公开(公告)号：US4499906A
公开(公告)日：1985-02-19
申请号：US483881
申请日：1983-04-11
申请人： Juergen Wohlgemuth , Eugen Hohmann
发明人： Juergen Wohlgemuth , Eugen Hohmann
CPC分类号： A61B9/005 , A61B5/1104 , A61B9/00 , G01N3/303 , G01N3/317 , A61B5/1111 , A61B5/682 , G01N2203/0089 , G01N2203/0623
摘要： A percussion instrument suitable for use in dental practice for determining the degree of looseness of teeth has a movably seated ram which is accelerated to a defined velocity by an electromagnetic drive means and is subsequently moved toward a test subject (such as a tooth) in free flight. The electromagnetic means also controls return of the ram to a rest position. The ram is comprised of a non-magnetic section and a section of low magnetic retentivity passing through a magnetic coil. Control electronics supplies current pulses to the coil. The velocity of the ram is detected by a measuring and evaluation unit and is maintained at a constant value after a comparison of a rated value with the actual velocity value. The current feed to the coil is discontinued when the rated velocity is reached.
摘要翻译： 适用于牙齿实践中用于确定牙齿松动程度的打击乐器具有可移动的座椅，其通过电磁驱动装置被加速到限定的速度，随后以免费的方式朝测试对象（例如牙齿）移动 飞行。 电磁装置还控制压头到静止位置的返回。 柱塞由非磁性部分和通过磁性线圈的低磁性保持性部分组成。 控制电路为线圈提供电流脉冲。 压头的速度由测量和评估单元检测，并且在将额定值与实际速度值进行比较之后保持在恒定值。 当达到额定速度时，线圈的当前进给停止。
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公开(公告)号：US5364227A
公开(公告)日：1994-11-15
申请号：US985266
申请日：1992-12-03
CPC分类号： A61C1/05 , Y10S415/904
摘要： A regulatable dental turbine includes an actuator arrangement which is provided for regulating the speed by varying the amount of an essentially constant volume stream of drive fluid striking a turbine wheel of the dental turbine. The change of the direction based on the actuator arrangement bypasses a portion of the volume hitting the blades of the dental turbine. The actuator arrangement operates in a speed-dependent fashion based on the flow deflected by the blades of the wheel on an impact surface.
摘要翻译： 可调节牙科涡轮机包括致动器装置，该致动器装置用于通过改变撞击牙科涡轮机的涡轮机叶轮的驱动流体的基本恒定的体积流的量来调节速度。 基于致动器装置的方向的改变绕过体积撞击牙齿涡轮叶片的一部分。 致动器装置以速度依赖的方式工作，基于在冲击表面上由轮的叶片偏转的流动。
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公开(公告)号：US5567154A
公开(公告)日：1996-10-22
申请号：US505759
申请日：1995-07-21
申请人： Juergen Wohlgemuth
发明人： Juergen Wohlgemuth
IPC分类号： A61C1/05
CPC分类号： A61C1/05 , Y10S415/904
摘要： A dental turbine drive contains a rotor disk which is mounted for rotation in a rotor chamber in a head housing of a dental handpiece and is driven by compressed air from a nozzle in the known way. A control element for regulating the speed is arranged in the flow path of the exhaust air and is constructed to change shape or position upon rotation of the rotary disk as a consequence of centrifugal force so that the effective cross section of the exhaust path decreases with increasing speeds and will increase with decreasing speeds. In addition, an additional or second element is provided and includes a pressure chamber connected by channels to the rotor chamber so that the additional element will respond to changes in the pressure in the rotor chamber to support the effect of the control element. The second element can be a diaphragm valve having a valve member extending into either an exhaust channel or a delivery channel. The additional or second element can be a disk coacting with a resilient ring of the control element to form the control chamber in a recess on the rotor which receives the control element.
摘要翻译： 牙科涡轮机驱动器包含转子盘，该转子盘安装成用于旋转在牙齿手柄的头部壳体中的转子室中，并以已知方式从喷嘴以压缩空气驱动。 用于调节速度的控制元件布置在排气的流动路径中，并且被构造成在离心力的作用下旋转盘的旋转时改变形状或位置，使得排气通道的有效截面随着增加而减小 速度将随着速度的降低而增加。 另外，提供了附加或第二元件，并且包括通过通道连接到转子室的压力室，使得附加元件将响应于转子室中的压力的变化以支持控制元件的效果。 第二元件可以是具有延伸到排气通道或输送通道中的阀构件的隔膜阀。 附加或第二元件可以是与控制元件的弹性环共同作用的盘，以将控制室形成在转子上的容纳控制元件的凹部中。
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公开(公告)号：US5522695A
公开(公告)日：1996-06-04
申请号：US298294
申请日：1994-08-31
CPC分类号： A61C1/05 , Y10S415/904
摘要： A regulatable dental turbine includes an actuator arrangement which is provided for regulating the speed by varying the amount of an essentially constant volume stream of drive fluid striking a turbine wheel of the dental turbine. The change of the direction based on the actuator arrangement may bypass a portion of the volume hitting the blades of the dental turbine or may create a portion of the stream as a deceleration force acting on the turbine wheel. The actuator arrangement can operate in a speed-dependent fashion based on the flow deflected by the blades of the wheel on an impact surface or can act with a speed sensor determining the rate of rotation of the turbine wheel.
摘要翻译： 可调节牙科涡轮机包括致动器装置，该致动器装置用于通过改变撞击牙科涡轮机的涡轮机叶轮的驱动流体的基本恒定的体积流的量来调节速度。 基于致动器装置的方向的改变可以绕过撞击牙齿涡轮叶片的体积的一部分，或者可以产生流的一部分作为作用在涡轮机叶轮上的减速力。 致动器装置可以基于速度依赖的方式操作，其基于在冲击表面上由轮的叶片偏转的流动，或者可以与确定涡轮机叶轮的旋转速率的速度传感器起作用。
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公开(公告)号：US5507642A
公开(公告)日：1996-04-16
申请号：US260311
申请日：1994-06-15
申请人： Juergen Wohlgemuth
发明人： Juergen Wohlgemuth
IPC分类号： A61C1/05
CPC分类号： A61C1/057 , A61C1/05 , Y10S415/904
摘要： A dental turbine drive which is provided with an arrangement to prevent suctioning of particles after deactivation of the drive air into the return air line. To accomplish this, the turbine space is closed during a run-out phase of the rotor except for an outflow channel that is arranged close to the axis of the rotor shaft adjacent the tool side and is connected to a return air channel. The return air channel can discharge directly into the outflow channel at a point spaced from the main portion of the rotor and a valve arrangement may be presented for closing the air opening once the input air has been interrupted.
摘要翻译： 一种牙科涡轮驱动器，其设置有在驱动空气停止进入返回空气管线之后防止颗粒抽吸的装置。 为了实现这一点，涡轮机空间在转子的跳动阶段期间关闭，除了靠近工具侧的转子轴的轴线布置并且连接到回风通道的流出通道。 返回空气通道可以在与转子的主要部分间隔开的位置处直接排出到流出通道中，并且一旦输入空气被中断，可以提供用于关闭空气开口的阀装置。
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公开(公告)号：US5496173A
公开(公告)日：1996-03-05
申请号：US261149
申请日：1994-06-14
申请人： Juergen Wohlgemuth
发明人： Juergen Wohlgemuth
IPC分类号： A61C1/05
CPC分类号： A61C1/057 , A61C1/05 , Y10S415/904
摘要： A controllable turbine drive for a dental handpiece has an adjustment member which rotates with the rotor disc and is deformable due to the centrifugal forces to constrict an exhaust channel extending along the disc to change the effective cross section of the channel so that with an increased speed of rotation, the effective cross section decreases and with a decreased speed, the effective cross section is increased. The member may be an elastic ring which is restrained by a rim formed by a recess on one side of the rotor disc or it may be an elastic spring washer, which has an upturned peripheral flange and which is bent or elastically deformed.
摘要翻译： 用于牙齿手柄的可控涡轮驱动器具有调节构件，该调节构件与转子盘一起旋转并且由于离心力而变形，以收缩沿着盘延伸的排气通道，以改变通道的有效截面，使得以增加的速度 的有效截面减小，速度降低，有效截面增大。 构件可以是由转子盘的一侧上的凹部形成的边缘约束的弹性环，或者可以是弹性弹簧垫圈，其具有向上的周向凸缘并且弯曲或弹性变形。
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公开(公告)号：US5352118A
公开(公告)日：1994-10-04
申请号：US991591
申请日：1992-12-16
CPC分类号： A61C1/052
摘要： A dental instrument having an active tool for treating a hard dental substance includes an arrangement for spraying water to cool the preparation location with the water either forming an envelope surrounding the tool or being a finely atomized stream of a solid angle directed onto the preparation location. The volume proportion of cooling air relative to the volume of the water in both versions is not greater than the volume of the water so that the envelope or spray are substantially free of air.
摘要翻译： 具有用于处理硬质牙科物质的主动工具的牙科器具包括用于喷洒水以使水冷却所述制备位置的布置，所述水形成围绕所述工具的封套，或者是被引导到所述准备位置上的立体角的精细雾化的流。 冷却空气相对于两种型式的水体积的体积比例不大于水的体积，使得外壳或喷雾器基本上不含空气。
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公开(公告)号：US4713962A
公开(公告)日：1987-12-22
申请号：US802255
申请日：1985-11-27
申请人： Juergen Wohlgemuth
发明人： Juergen Wohlgemuth
摘要： A test device for dental instruments, which have a movably seated ram that moves toward the test subject in free flight with constant speed and after impact against the subject will return to initial position, characterized by a test member which is situated externally of the instrument and has a seating surface for engagement by the ram and an arrangement for positioning the test member on a carrier member so that it would have the elasto-mechanical properties which correspond to those of a test subject. The device includes the carrier member being a cap having the test element held by a resilient material in the cap so that the cap can be inserted onto the end of the instrument. The test element can also be a resilient tongue on the carrier member, which can have a plurality of resilient tongues forming a plurality of test members. In another embodiment, the carrier member has a slot so that the test element or member is a component part separated by the slot from the remainder of the solid body of the carrier member.
摘要翻译： 一种用于牙科器械的测试装置，其具有可移动的座位，其以自由飞行中的速度恒定的速度向被测试者移动，并且在受到撞击之后将返回到初始位置，其特征在于位于仪器外部的测试构件， 具有用于由冲头接合的座面和用于将测试构件定位在承载构件上的布置，使得其具有与测试对象相对应的弹性机械性质。 该装置包括承载构件，其为具有由帽中的弹性材料保持的测试元件的帽，使得帽可以插入到器械的端部。 测试元件也可以是承载构件上的弹性舌片，其可以具有形成多个测试构件的多个弹性舌片。 在另一个实施例中，载体构件具有狭槽，使得测试元件或构件是由槽与载体构件的固体的其余部分分开的部件。
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公开(公告)号：US4370132A
公开(公告)日：1983-01-25
申请号：US248863
申请日：1981-03-30
申请人： Juergen Wohlgemuth
发明人： Juergen Wohlgemuth
IPC分类号： A61C1/08 , A61C1/14 , B23B31/113
CPC分类号： A61C1/141 , B23B31/113 , Y10T279/17811
摘要： A rotatable socket for supporting a tool for rotation in a head housing of a dental handpiece. The socket includes a cylindrical or hollow tubular shaft for supporting a tool extending out of one end and having a dog for engaging a flattened surface on the shank of the tool for transmitting torque. To hold the tool in the socket, the socket has a catch device comprising at least one resilient element with a catch nose being disposed in the interior of the shaft to extend parallel to the axis of the shaft with the catch nose releasably engaging an annular groove in the shank of the tool. To disengage the tool, the catch device also includes a pressure element, which is disposed on the housing adjacent the free end of each resilient support element and which is urged into engagement with the free end of the support element to cause disengagement of each of the catch noses when a purchase has been actuated by pressure from the operator's thumb.
摘要翻译： 一种用于支撑用于在牙科手机的头部外壳中旋转的工具的可旋转插座。 插座包括圆柱形或中空的管状轴，用于支撑从一端延伸的工具，并具有用于接合工具的柄上的平坦表面以传递扭矩的狗。 为了将工具保持在插座中，插座具有捕获装置，该捕获装置包括至少一个弹性元件，其中抓住鼻部设置在轴的内部中，以平行于轴的轴线延伸，其中抓持爪可释放地接合环形凹槽 在工具的柄上。 为了使工具脱离接合，捕获装置还包括压力元件，该压力元件设置在邻近每个弹性支撑元件的自由端的壳体上，并且被推动与支撑元件的自由端接合以使得每个 当操作者的拇指受到压力的启动时，抓住鼻子。
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