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1. 发明授权

US4435161A Dental turbine 失效
标题翻译：牙科涡轮
公开(公告)号：US4435161A
公开(公告)日：1984-03-06
申请号：US395084
申请日：1982-06-10
申请人： David Mosimann
发明人： David Mosimann
IPC分类号： A61C1/05 , A61C1/08 , A61C1/16
CPC分类号： A61C1/08 , A61C1/16
摘要： In a dental turbine, having a laterally displaceably arranged rotor assembly including a shaft mounted in upper and lower ball bearings and having its lower end protruding through a bore provided in the nose of the turbine and forming a gap or space with the bore for accommodating the lateral displacement of the shaft lower end thereat a protective sleeve (1) is fitted to the outer ring (2) of the lower ball bearing, and extends below the bearing, then along the lower end of the shaft (4) and into the space (5) formed between the shaft (4) and the bore (6) in the nose (7) of the turbine to provide a relatively minute gap or space between the inner surface of the lower portion of the sleeve and the lower end of the shaft and a resultant reduced size gap or space between the outer surface of the lower portion of the sleeve and the inner surface of the bore in the nose.The protective sleeve (1) which follows any lateral movement of the rotor assembly and a ring of soft material (13) received in compressed state between the outer surface of the lower portion of the sleeve and the inner surface (15) of the turbine head, i.e. rearwardly or upwardly of the bore in the nose, prevent waste material of any kind which might otherwise have penetrated into the interior of the turbine through the minute gap or space (10) and/or the reduced size gap or space (12), from reaching the vital parts of the rotor.
摘要翻译： PCT No.PCT / CH81 / 00113 Sec。 371日期1982年6月10日 102（e）日期1982年6月10日PCT提交1981年10月8日PCT公布。公开号WO82 / 01309 日期：1982年4月29日。在牙科涡轮机中，具有横向可移位布置的转子组件，其包括安装在上部和下部球轴承中的轴，并且其下端突出穿过设置在涡轮机的鼻部中的孔，并形成间隙或具有用于容纳轴下端的横向位移的孔的空间，保护套（1）装配到下球轴承的外圈（2）上，并在轴承的下方延伸，然后沿轴的下端（4）并且进入在涡轮机的鼻部（7）中的轴（4）和孔（6）之间形成的空间（5）中，以在涡轮的下部的内表面之间提供相对较小的间隙或空间套筒和轴的下端，并且在套筒的下部的外表面和鼻部的孔的内表面之间形成减小的尺寸间隙或空间。所述保护套筒（1）沿着所述转子组件的任何横向运动和在所述套筒下部的外表面与所述涡轮机头部的内表面（15）之间以压缩状态容纳的软质材料环（13），即鼻子中的孔的向后或向上，防止任何可能通过微小间隙或空间（10）和/或减小尺寸的间隙或空间（12）渗透到涡轮内部的废料，，到达转子的重要部位。

2. 发明授权

US4773856A Device for actuating a tool fastening and releasing mechanism 失效
标题翻译：用于致动工具紧固和释放机构的装置
公开(公告)号：US4773856A
公开(公告)日：1988-09-27
申请号：US51870
申请日：1987-05-19
申请人： David Mosimann
发明人： David Mosimann
IPC分类号： B25F5/00 , A61C1/14
CPC分类号： A61C1/141
摘要： A device for releasing a tool from a tool fastening mechanism of a dentist's handpiece comprises a push-piece that is held in an outer, inoperative position by a spring, and a slide mounted on a rotor of the dentist's handpiece. Upon being pressed, the push-piece engages the slide to release a tool fastened in the rotor. In order to prevent the push-piece from overheating when it is in contact with the slide while the slide is rotating at high speed, the push-piece carries a disc and the slide carries a ball. The disc and the ball are for instance made of sintered hard metal and are located where the push-piece and the slide engage such as to have substantially a point contact between them on the rotational axis of the slide.
摘要翻译：用于从牙医手机的工具紧固机构释放工具的装置包括通过弹簧保持在外部不工作位置的推动件和安装在牙医手机的转子上的滑块。在被按压时，推动件接合滑块以释放紧固在转子中的工具。为了防止推片在滑块高速旋转时与滑块接触时过热，推动件承载盘，滑块承载球。盘和球例如由烧结硬金属制成，并且位于推片和滑块接合处，以便在滑块的旋转轴线上在它们之间具有基本上的点接触。

3. 发明授权

US4012841A Device for fixing a dental drill into a rotor 失效
标题翻译：用于将牙钻固定到转子中的装置
公开(公告)号：US4012841A
公开(公告)日：1977-03-22
申请号：US616023
申请日：1975-09-23
申请人： David Mosimann
发明人： David Mosimann
IPC分类号： A61C1/14 , B23B31/08 , B23B31/117 , A61C1/10
CPC分类号： B23B31/1173 , A61C1/141
摘要： A holder for a dental drill is formed by a helical spring drivingly connected to a driven rotor. The normal internal diameter of the spring is slightly less than the diameter of the shank of the drill to be used. Axial insertion of the drill into one end of the spring causes the spring to compress in length and thus increase in diameter sufficiently to receive the drill shank and frictionally grip the same. Means are provided for expanding the spring to release the drill.
摘要翻译：用于牙科钻头的保持器由驱动地连接到从动转子的螺旋弹簧形成。弹簧的正常内径略小于要使用的钻头柄的直径。将钻头轴向插入弹簧的一端使得弹簧的长度被压缩，从而足以增大直径以容纳钻柄并且摩擦地夹住钻杆。提供用于扩展弹簧以释放钻头的装置。

4. 发明授权

US3589828A Hand-piece of dentistry with an air-driven turbine 失效
标题翻译：牙科手术与空气驱动的涡轮机
公开(公告)号：US3589828A
公开(公告)日：1971-06-29
申请号：US3589828D
申请日：1969-06-30
申请人： MOSIMANN DAVID
发明人： MOSIMANN DAVID
IPC分类号： A61C1/05 , F01D11/00 , F03B13/04
CPC分类号： A61C1/05 , Y10S415/904
摘要： The air-driven rotor of the turbine is journaled at its two ends in air bearings comprising floating sleeves. These sleeves are supported within the cylindrical wall of a housing of the handpiece by means of inflated plastic shells, each composed of two annular parts having a V-shaped cross section. Air under pressure is supplied simultaneously for inflating the shells and to the air bearings by derivative conduits of the main conduit supplying the turbine with the driving air jet.

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