发明名称 |
Tunnelling machine |
摘要 |
An excavating and/or tunneling machine having a mobile support unit with suitable endless tracks for advancing the unit. The support unit serves as the base or chassis for an excavating screw, impact devices and excavating boom tools which all are cooperatively brought into operation to cut into material to be mined, excavated and/or tunneled.
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申请公布号 |
US4080000(A) |
申请公布日期 |
1978.03.21 |
申请号 |
US19760728192 |
申请日期 |
1976.09.30 |
申请人 |
PAURAT, FRIEDRICH-WILHELM |
发明人 |
PAURAT, FRIEDRICH-WILHELM |
分类号 |
E21D9/10;(IPC1-7):E21C25/52;E21C35/20 |
主分类号 |
E21D9/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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