发明申请
US20070007394A1 System, method, and apparatus for railroad turnout and derail lift frog
审中-公开
铁路出口和脱轨提升青蛙的系统，方法和装置
- 专利标题： System, method, and apparatus for railroad turnout and derail lift frog
- 专利标题（中）： 铁路出口和脱轨提升青蛙的系统，方法和装置
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申请号： US11175534申请日： 2005-07-06
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公开(公告)号： US20070007394A1公开(公告)日： 2007-01-11
- 发明人: Russell Hein , Robert Roberts , Brian Weaver
- 申请人： Russell Hein , Robert Roberts , Brian Weaver
- 专利权人： Progress Rail Services Corp.
- 当前专利权人： Progress Rail Services Corp.
- 主分类号： E01B7/00
- IPC分类号： E01B7/00
摘要：
A railroad turnout lift frog has a combination tread and flange bearing design that uses two separate castings to form the lift frog and securely bolt it to the main rail. The lift frog allows for a continuous, unbroken mainline track and also has built-in guarding for a safer move.
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