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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0609488 (1984-05-10) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 17 인용 특허 : 3 |
A modular railway crossing structure supports a pair of rails. The modular railway crossing includes multiple base members, which are aligned axially along the length of the rails. The rails are encased by rubber boot elements. Each base member has a central recess formed in the upper surface. A pai
A method for making a railway crossing comprising positioning a plurality of base members end to end on a prepared rail bed, each of said base members being formed with a central recess extending between the transverse edges thereof and defining parallel walls of said central recess each being forme
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