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1. 发明授权

US4151648A Dental apparatus with instrument holder 失效
标题翻译：带仪器架的牙科仪器
公开(公告)号：US4151648A
公开(公告)日：1979-05-01
申请号：US842544
申请日：1977-10-17
申请人： Emil Hirth
发明人： Emil Hirth
IPC分类号： A61G15/16 , A61C19/02
CPC分类号： A61G15/16 , Y10T137/6929
摘要： A dental apparatus retracts supply hoses connected to associated dental instruments. A coil spring is used within a housing. The hose is interposed between the windings of the spring. When the hose is extended, the radius of the coil contracts causing control switches to be activated. A ratchet engages dogs on the spring preventing unwanted retraction. Upon release of the ratchet, the coil spring expands drawing the hose into the housing.
摘要翻译：牙科设备缩回与相关牙科仪器连接的供应软管。在壳体内使用螺旋弹簧。软管插在弹簧的绕组之间。当软管伸出时，线圈的半径使控制开关被激活。棘轮在弹簧上与狗啮合，防止不必要的回缩。在释放棘轮时，螺旋弹簧将软管伸展成将壳体拉开。

2. 发明授权

US4421483A Delivery system for dental instruments or the like 失效
标题翻译：牙科仪器等的输送系统
公开(公告)号：US4421483A
公开(公告)日：1983-12-20
申请号：US240486
申请日：1981-03-04
申请人： Helmut Pietschmann , Manfred Schmidt , Emil Hirth
发明人： Helmut Pietschmann , Manfred Schmidt , Emil Hirth
IPC分类号： A61C17/06 , A61G15/16
CPC分类号： A61G15/16
摘要： A dental unit has dental instruments carried by individual nests, the nests being selectively movable from a storage position to a readiness position. Each nest is carried to the readiness position in a controlled manner such that the axis of the instrument becomes horizontal and moves downwardly as the instrument approaches the readiness position.
摘要翻译：牙科单元具有由单个窝携带的牙科器械，巢可选择性地从储存位置移动到准备位置。每个窝以受控的方式运送到就绪位置，使得仪器的轴线变得水平并且当仪器接近准备位置时向下运动。

3. 发明授权

US4344594A Lift mechanism for dental chair 失效
标题翻译：牙科椅升降机构
公开(公告)号：US4344594A
公开(公告)日：1982-08-17
申请号：US149907
申请日：1980-05-15
申请人： Emil Hirth
发明人： Emil Hirth
IPC分类号： A47C3/38 , A47C7/50 , A61G15/00 , A47C1/02
CPC分类号： A61G15/00 , Y10S297/10
摘要： A dental chair lift mechanism employing a parallelogram lift has a linkage arrangement which offsets the horizontal component of motion produced by the parallelogram lift so that the seat of the dental chair can be elevated in a substantially straight vertical path.
摘要翻译：采用平行四边形升降机的牙科椅升降机构具有连接装置，其抵消由平行四边形升降机产生的运动的水平分量，使得可以将基座直立的竖直路径升高。

4. 发明授权

US4335920A Headrest for a dental chair 失效
标题翻译：头枕为牙科椅
公开(公告)号：US4335920A
公开(公告)日：1982-06-22
申请号：US169869
申请日：1980-07-17
申请人： Emil Hirth
发明人： Emil Hirth
IPC分类号： A61G15/12 , A61G15/00 , A47C1/10
CPC分类号： A61G15/125
摘要： An adjustable headrest for a dental chair having one lock for holding the headrest at an articulated position and a second lock for holding the headrest at an adjusted longitudinal position with respect to the backrest of the chair. The invention is a one hand operated lock release for operating both locks. The release can be constructed so that manipulation of a single member can accomplish sequential, independent or simultaneous operation of both locks.
摘要翻译：一种用于牙科椅的可调节头枕，其具有用于将头枕固定在铰接位置的一个锁和用于将头枕相对于椅子靠背调节在纵向位置的第二锁。本发明是用于操作两个锁的单手操作锁定释放装置。释放可以构造成使得单个构件的操纵可以实现两个锁的顺序，独立或同时的操作。

5. 发明授权

US4083600A Dental chair 失效
标题翻译：牙科椅
公开(公告)号：US4083600A
公开(公告)日：1978-04-11
申请号：US763507
申请日：1977-01-28
申请人： Emil Hirth
发明人： Emil Hirth
IPC分类号： A47C1/032 , A47C1/06 , A61G15/02 , A47C1/02
CPC分类号： A47C1/06 , A47C1/03211 , A61G15/02
摘要： A dental chair having a backrest and a seat each of which is angularly adjustable about a common horizontal axis. A motor drives a linkage system which simultaneously angularly adjusts both backrest tilt and seat inclination to positions ranging from one in which the chair supports the patient in substantially sitting position, to one in which the patient is reclining with his head below the rest of his body. As compared to the seat, the angular motion of the backrest is relatively uniform over the range of adjustment, whereas most of the angular motion of the seat occurs during the middle 50% of the range.
摘要翻译：一种具有靠背和座椅的牙科椅，其各自围绕共同的水平轴线成角度地调节。电动机驱动联动系统，其同时角度地调整靠背倾斜和座椅倾斜度，其范围从椅子支撑患者处于基本坐姿的位置到患者躺在身体其余部分下方的位置。与座椅相比，靠背的角度运动在调节范围内相对均匀，而座椅的大部分角动作则在中距离的50％范围内发生。

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