发明授权
- 专利标题： Ball and socket trailer hitch assembly
- 专利标题（中）： 球和拖车挂车组装
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申请号： US09977121申请日： 2001-10-12
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公开(公告)号： US06481740B1公开(公告)日： 2002-11-19
- 发明人: Reinhold A. Haase , John D. Hull , James M. Gruidel , Lynn D. Alber , Todd James Yost , Thomas G. Johnson
- 申请人： Reinhold A. Haase , John D. Hull , James M. Gruidel , Lynn D. Alber , Todd James Yost , Thomas G. Johnson
- 主分类号： B60D1173
- IPC分类号： B60D1173
摘要：
A socket assembly for a trailer hitch includes a ball clamp member which has lateral arms or wings that limit the pivotal movement of the ball clamp member thereby improving the opportunity for the ball to properly fit in and totally seat within the cavity defined within the socket assembly.
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