公开(公告)号：US20050051324A1

公开(公告)日：2005-03-10

申请号：US10658519

申请日：2003-09-09

申请人： Donald Mosing ,  Jon Veverica ,  Jeremy Angelle ,  Robbie Thibodeaux

发明人： Donald Mosing ,  Jon Veverica ,  Jeremy Angelle ,  Robbie Thibodeaux

IPC分类号： E21B19/07 ,  E21B41/00 ,  E21B47/00

CPC分类号： E21B41/0021 ,  E21B19/07

摘要： The apparatus is connected to a member on the elevator that moves if and when the slips move between the open and closed positions. The member is locked in a preselected position that attends the position of the slips when the elevator is considered safe. When the member is in that safe position a wireless signal is generated by the apparatus part on the elevator and received by a receiving part of the apparatus in a convenient remote location such as the drillers position. In response to the received signal, the receiving part produces a visible signal to indicate that the slips are in the preselected position.

摘要翻译： 该装置连接到电梯上的一个成员，如果滑块在打开位置和关闭位置之间移动，则其移动。 当电梯被认为是安全的时，该部件被锁定在一个预选的位置上，该位置就是滑行位置。 当成员处于该安全位置时，由电梯上的装置部分产生无线信号，并且在诸如钻机位置的方便的远程位置由设备的接收部分接收无线信号。 响应于接收到的信号，接收部分产生可见信号以指示滑块处于预选位置。