发明授权
- 专利标题: Railroad frog assembly with latch holdback
- 专利标题(中): 铁路青蛙装配有闩锁
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申请号: US251620申请日: 1999-02-17
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公开(公告)号: US6158697A公开(公告)日: 2000-12-12
- 发明人: Keith Young , Stephen R. Kuhn
- 申请人: Keith Young , Stephen R. Kuhn
- 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 ; E01B7/00
摘要:
A railroad frog assembly is provided with a spring wing rail latch holdback subassembly that continuously retains the spring wing rail in a spring wing rail fully open position when activated by the wheels of a railcar traversing the frog assembly, and that automatically deactivates the latch 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
- US5489383A Screw type dewatering machine 公开/授权日:1996-02-06