发明授权
- 专利标题: Insulative protective device for rail fastener
- 专利标题(中): 导轨紧固件绝缘保护装置
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申请号: US735630申请日: 1985-05-20
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公开(公告)号: US4635846A公开(公告)日: 1987-01-13
- 发明人: Peter L. Todd
- 申请人: Peter L. Todd
- 申请人地址: CA Oakland
- 专利权人: San Francisco Bay Area Rapid Transit District
- 当前专利权人: San Francisco Bay Area Rapid Transit District
- 当前专利权人地址: CA Oakland
- 主分类号: E01B9/42
- IPC分类号: E01B9/42 ; E01B9/44 ; E01B9/62 ; E01B9/66 ; E01B9/68 ; E01B9/38 ; E01B11/54
摘要:
A rail-support insulating device for electrically insulating rapid transit system rail apparatus from the rail support structure is described. The device includes a layer of electrically non-conductive material forming a boot that encloses the base of the rail where the rail passes over its support. This insulating boot extends upwardly on opposite sides of the rail web and outwardly therefrom to form long surface electrical creepage paths between the rail and the rail support that provide electrical isolation even when the entire assembly of rail, boot and rail support is wet with electrolyte.
公开/授权文献
- US5774604A Using an asymmetric element to create a 1XN optical switch 公开/授权日:1998-06-30