公开(公告)号：US5519561A

公开(公告)日：1996-05-21

申请号：US336391

申请日：1994-11-08

申请人： Stephen A. Mrenna ,  David M. Wood ,  Raymond W. Mackenzie

发明人： Stephen A. Mrenna ,  David M. Wood ,  Raymond W. Mackenzie

IPC分类号： G01R19/165 ,  H01H73/48 ,  H02H1/00 ,  H02H3/08 ,  H02H5/04

CPC分类号： H02H1/0015

摘要： In a circuit breaker having a thermal-magnetic trip, the voltage across the bimetal is used to sense load currents. This voltage signal representative of current through the bimetal can be used as an input to an arcing fault detector. The signal is converted to a bandwidth limited di/dt signal. If the magnitude of the di/dt signal exceeds a threshold indicative of the onset of an arc a predetermined number of times within a given interval, the circuit breaker is tripped. The voltage across the bimetal can also be used in other devices requiring a measure of load current such as, for example, a meter or an overcurrent alarm.

摘要翻译： 在具有热磁跳闸的断路器中，双金属片两端的电压用于感测负载电流。 表示通过双金属电流的电压信号可以用作电弧故障检测器的输入。 该信号被转换为带宽限制的di / dt信号。 如果di / dt信号的大小超过给定间隔内指示电弧开始预定次数的阈值，则断路器跳闸。 双金属片上的电压也可用于需要测量负载电流的其他器件，例如仪表或过流警报。

公开(公告)号：US20100102604A1

公开(公告)日：2010-04-29

申请号：US12587739

申请日：2009-10-13

申请人： Stephen B. Barnes ,  David M. Wood ,  Wilbur Bewley ,  Rocky Zornes ,  Ivan M. George

发明人： Stephen B. Barnes ,  David M. Wood ,  Wilbur Bewley ,  Rocky Zornes ,  Ivan M. George

IPC分类号： B60R21/02 ,  B60N2/48 ,  B60N2/26 ,  B60N2/28

CPC分类号： B60N2/2851 ,  B60N2/2821 ,  B60N2/2866 ,  B60N2/2872 ,  B60N2/818 ,  B60N2/885

摘要： An encircling head restraint rigidly though movably attached to a seat within a vehicle, such that in the event of a crash or other sudden movement, the head of the occupant of the seat is protected, and excess movement of the head and neck is prevented. The encircling head restraint sits around the head, but does not touch the head so that the occupant can move the head within the encircling head restraint. The encircling head restraint prevents excess movement of the head in all directions. In a preferred embodiment the encircling head restraint is movably mounted to a child's car seat such that it can be adjusted up or down to fit properly on the head of the child. The encircling head restraint is adjustable to accommodate different sized heads. There is a hinge mechanism that allows the encircling head restraint to be easily moved out of the way to allow easy access to the seat by the occupant.

摘要翻译： 环绕的头枕刚性地可移动地附接到车辆内的座椅上，使得在碰撞或其他突然移动的情况下，座椅的乘员头部被保护，并且防止头部和颈部的过度运动。 环绕的头枕位于头部周围，但不接触头部，以便乘员能够将头部移动到环绕的头枕内。 围绕的头枕防止头部在所有方向上的过度运动。 在优选实施例中，围绕的头枕可移动地安装到儿童的汽车座椅上，使得其可以被上下调节以适合地适合于儿童的头部。 环绕的头枕可调节以适应不同尺寸的头部。 有一个铰链机构，允许环绕的头枕很容易地移开，以方便乘客容易地进入座位。