发明授权
- 专利标题： Railroad frog assembly with multi-position holdback
- 专利标题（中）： 铁路青蛙组装与多位置保持
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申请号： US251841申请日： 1999-02-17
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公开(公告)号： US6164602A公开(公告)日： 2000-12-26
- 发明人: Stephen R. Kuhn , Keith Young , Ilia Petkov
- 申请人： Stephen R. Kuhn , Keith Young , Ilia Petkov
- 申请人地址： IL Chicago
- 专利权人： ABC Rail Products Corporation
- 当前专利权人： ABC Rail Products Corporation
- 当前专利权人地址： IL Chicago
- 主分类号： B61L11/04
- IPC分类号： B61L11/04 ; B61L11/08 ; E01B7/14 ; E01B7/10
摘要：
A railroad frog assembly is provided with a spring wing rail multi-position holdback subassembly that continuously retains the spring wing rail in each spring wing rail open position when activated by the wheels of a railcar traversing the frog assembly, and that automatically deactivates the multi-position holdback subassembly and releases the spring wing rail from retention in an open condition and for complete closing after the last railcar wheel has passed through the frog assembly.
公开/授权文献
- US5507400A Slackless drawbar or coupler with swivel mounting 公开/授权日：1996-04-16
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