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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0239325 (1981-03-02) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 10 인용 특허 : 2 |
A railroad crossing structure for providing an improved devil strip. In particular, the invention proposes to bridge the span between adjacent sets of tracks with bridge members of steel or other like material of sufficient strength and rigidity. These bridge members preferably correspond in number
A railroad crossing structure for use with a highway railroad crossing having at least two sets of tracks with a devil strip between them, each of said sets of tracks having a pair of spaced, substantially parallel rails, a plurality of elongated ties subtending and supporting said rails and being d
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