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1. 发明授权

US3767332A Speed control and cut-off device 失效
标题翻译：速度控制和切断装置
公开(公告)号：US3767332A
公开(公告)日：1973-10-23
申请号：US3767332D
申请日：1971-08-16
申请人： BLACK & DECKER MFG CO
发明人： HUFFAKER D , WICKHAM J , WORDSWORTH A
IPC分类号： G05D13/04 , B23Q11/00 , B24B47/18 , B24B55/00 , F01B25/16 , F01C13/02 , F01C20/08 , F01C20/28 , G05D13/38 , F01C21/12 , F04C15/02 , F04C29/08
CPC分类号： B24B55/00 , F01C20/08 , F01C20/28 , Y10T137/1153
摘要： A powered rotary grinder including a vane-type fluid motor having a rotor supported within a housing. Pressurized fluid is admitted to the motor through a control valve to drive the rotor. A pivoted lever is engageable with the control valve and is actuated by flyweights attached to the rotor to regulate the speed of the rotor. The control valve includes normally latched, stored energy means which, when released, slams the control valve completely shut to cut off flow of pressurized fluid to the motor. A centrifugally actuated weight or weights interconnected with the rotor are operable to release the latched stored energy means should the rotor overspeed and the regulator fail to operate. In one embodiment, the weights include interengaged means which require that all the weights move radially outwardly of the rotor conjointly to effect release of the latched, stored energy means. This interengaged means insures that only centrifugal force can move the weights and that they cannot accidentally or unintentionally move to effect release of the stored energy means in the event, for example, the grinder is dropped or is otherwise struck with a sharp blow.
摘要翻译：一种动力旋转研磨机，包括具有支撑在壳体内的转子的叶片型流体马达。加压流体通过控制阀进入电动机以驱动转子。枢转杠杆可与控制阀啮合，并通过连接在转子上的飞轮来驱动，以调节转子的转速。控制阀包括通常锁定的储存能量装置，当释放时，控制阀完全关闭，以切断加压流体到电动机的流动。与转子互连的离心致动重量或重量可操作以在转子超速并且调节器不能操作时释放锁存的储能装置。在一个实施例中，重物包括相互联接的装置，其需要所有的重物一起径向向外移动转子，以实现锁定的储存能量装置的释放。这种相互接合的方式确保只有离心力可以移动重物，并且在例如磨碎机掉落或以其它方式冲击的情况下，它们不会意外或无意地移动以实现储存能量装置的释放。

2. 发明授权

US3724563A Collet chuck operated by throttle control for rotary power tool 失效
标题翻译：旋转电动工具通过油门控制操作的油缸
公开(公告)号：US3724563A
公开(公告)日：1973-04-03
申请号：US3724563D
申请日：1971-03-08
申请人： BLACK & DECKER MFG CO
发明人： WICKHAM J , RAMSTROM L , WORDSWORTH A , MELONI R
IPC分类号： B23B31/20 , B23B45/04
CPC分类号： B23B31/207 , B23B45/04 , Y10T279/17529
摘要： A portable rotary power tool including a housing having a vanetype pneumatic motor disposed therein. The motor is coupled to an output shaft rotatably supported within the housing. A collet is keyed within the shaft and is adapted to releaseably grip a tool bit. A throttle valve controls operation of the motor and is operated by a pivoted lever mounted on the housing. When the lever is moved in a direction opposite to that required for operation of the motor, the collet is positively released from the bit.
摘要翻译：一种便携式旋转动力工具，其包括具有设置在其中的叶片型气动马达的壳体。电动机联接到可旋转地支撑在壳体内的输出轴。夹头在轴内键入并适于可释放地夹紧工具钻头。节气门控制电动机的操作，并由安装在壳体上的枢转杆操作。当杠杆沿与电动机操作所需的方向相反的方向移动时，夹头从该位被正确地释放。

3. 发明专利

CA980640A SPEED CONTROL AND CUT-OFF DEVICE 未知
公开(公告)号：CA980640A
公开(公告)日：1975-12-30
申请号：CA231414
申请日：1975-07-14
申请人： BLACK & DECKER MFG CO
发明人： WICKHAM J , WORDSWORTH A , HUFFAKER D
IPC分类号： G05D13/04 , B23Q11/00 , B24B47/18 , B24B55/00 , F01B25/16 , F01C13/02 , F01C20/08 , F01C20/28 , G05D13/38

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