发明名称 |
Snubbing apparatus for grapples and the like |
摘要 |
A snubbing device for a suspended grapple or the like operable by pressurized fluid in a cavity between a pin and housing of a universal joint which actuates a ramp to cause a retarding reaction between the pin and housing to prevent free swinging of the grapple.
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申请公布号 |
US4572567(A) |
申请公布日期 |
1986.02.25 |
申请号 |
US19840604243 |
申请日期 |
1984.04.26 |
申请人 |
TIMBERJACK INC. |
发明人 |
JOHNSON, THOMAS E. |
分类号 |
B66C3/00;E02F3/413;E02F9/00;(IPC1-7):B66C1/00;F16F7/06 |
主分类号 |
B66C3/00 |
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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