发明授权
- 专利标题： Collapsible sea anchor or drogue
- 专利标题（中）： 可折叠海锚或水ue
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申请号： US244697申请日： 1994-07-07
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公开(公告)号： US5463971A公开(公告)日： 1995-11-07
- 发明人: William J. Abernethy
- 申请人： William J. Abernethy
- 专利权人： Abernethy; William J.
- 当前专利权人： Abernethy; William J.
- 优先权： AUXPK9833 19911204
- 主分类号： B63B22/00
- IPC分类号： B63B22/00 ; B63B21/48
摘要：
A collapsible sea anchor or drogue (50) having first and second hollow frusto-conical body parts (74, 80) which are made from strong flexible material, such as canvas. Four flexible lines (60, 62, 64, 66) connect the two body parts (74, 80) together and to a nose portion (52) to which a towing line can be connected. The sea anchor or drogue (50) is very effective in that the drag is large having regard to the diameter of the body parts (74, 80) and, moreover, it can be compactly stored when in a collapsed condition.
公开/授权文献
- US4852870A Substitute ground surface material 公开/授权日：1989-08-01
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