发明名称 |
Automatic tube puller |
摘要 |
An improved tool is provided for the removal of tubes from heat exchangers. First a mandrel is threaded into the end of a tube. The present tool is then fitted over the mandrel and is responsive to trigger-actuated hydraulic and/or pneumatic control means to automatically cause the tool to grip the mandrel and thereafter move the mandrel with its attached tube away from the tube sheet of the heat exchanger.
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申请公布号 |
US4095335(A) |
申请公布日期 |
1978.06.20 |
申请号 |
US19770758804 |
申请日期 |
1977.01.12 |
申请人 |
TROUVAY & CAUVIN |
发明人 |
LASSARAT, YVES ALBERT ROBERT |
分类号 |
B23P19/027;B21D53/06;B25B27/02;E04G21/12;(IPC1-7):B23P15/26 |
主分类号 |
B23P19/027 |
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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