发明授权
- 专利标题： Concrete grade crossing panels having integral elastomeric seals
- 专利标题（中）： 具有整体弹性体密封件的混凝土坡口横梁
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申请号： US498600申请日： 1995-07-05
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公开(公告)号： US5535948A公开(公告)日： 1996-07-16
- 发明人: Jack Williams
- 申请人： Jack Williams
- 申请人地址： OR Portland
- 专利权人： Omni Products, Inc.
- 当前专利权人： Omni Products, Inc.
- 当前专利权人地址： OR Portland
- 主分类号： E01B2/00
- IPC分类号： E01B2/00 ; E01B21/00 ; E01C9/04 ; E01B1/00
摘要：
A rail grade crossing includes precast concrete panels which extend substantially between the roadway and the rails and between the rails. Elastomeric seals that are cast into the panels when they are formed fit between the panels and the rails. Because the seals are cast into the panels, the panels and seals are an integral unit which facilitates installation and removal of the panels.
公开/授权文献
- US06161694A Pack for a linear lamp 公开/授权日：2000-12-19