公开(公告)号：US3974470A

公开(公告)日：1976-08-10

申请号：US601217

申请日：1975-08-01

申请人： Gideon A. DuRocher

发明人： Gideon A. DuRocher

IPC分类号： H01H1/029 ,  H01H13/12 ,  H01C13/00

CPC分类号： H01H1/029 ,  H01H13/12

摘要： A multi-stage switching apparatus adapted to make and break an electrical circuit comprises a first compressible body having a resistance which varies inversely according to its state of compression and a second compressible body having a substantially uniform resistance lower than that of the first body, the two bodies being so arranged that the first body is compressed prior to compression of the second body in response to making of the circuit and is decompressed following decompression of the first body in response to breaking of the circuit.

摘要翻译： 适于制造和断开电路的多级开关装置包括第一可压缩体，其具有根据其压缩状态反向变化的电阻和具有比第一体低的电阻基本上均匀的电阻的第二可压缩体， 两个体被布置成使得第一身体在第二体的压缩之前被响应于电路的制作而被压缩，并且在响应于电路的断开而减压第一体之后被减压。