发明名称 |
Jack bar with extendable tubes and fixturing mechanism |
摘要 |
A jack bar includes an outer tube, an inner tube and a positioner tube coaxially located. The positioner tube is extendable to adjust a length to the jack bar in use while enabling the jack bar to be retracted for storage. The jack bar further includes a clamp configured to receive tubes of various shapes. The clamp is further configured to prevent twisting or turning of clamped tubes. |
申请公布号 |
US8191864(B2) |
申请公布日期 |
2012.06.05 |
申请号 |
US20070999265 |
申请日期 |
2007.12.03 |
申请人 |
RUAN BU QIN;ZHEJIANG TOPSUN LOGISTIC CONTROL CO., LTD |
发明人 |
RUAN BU QIN |
分类号 |
B66F3/02 |
主分类号 |
B66F3/02 |
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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