Invention Grant
- Patent Title: Jack bar with extendable tubes and fixturing mechanism
- Patent Title (中): 千斤顶带可伸缩管和夹具机构
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Application No.: US10906768Application Date: 2005-03-04
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Publication No.: US07311294B1Publication Date: 2007-12-25
- Inventor: Bu Qin Ruan
- Applicant: Bu Qin Ruan
- Applicant Address: CN Yuhuan, Zhejiang
- Assignee: Yuhuan Top Sun Machinery Tool Co., Ltd.
- Current Assignee: Yuhuan Top Sun Machinery Tool Co., Ltd.
- Current Assignee Address: CN Yuhuan, Zhejiang
- Agency: Bergman & Song LLP
- Agent Michael Bergman
- Main IPC: B66F1/04
- IPC: B66F1/04
Abstract:
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.
Information query
