发明授权
- 专利标题： Railway highway crossing signal
- 专利标题（中）： 铁路公路交叉信号
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申请号： US500570申请日： 1995-07-11
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公开(公告)号： US5664744A公开(公告)日： 1997-09-09
- 发明人: James P. Chew , Santo A. DeFrancesco , Richard S. Jones
- 申请人： James P. Chew , Santo A. DeFrancesco , Richard S. Jones
- 申请人地址： PA Pittsburgh
- 专利权人： Union Switch & Signal Inc.
- 当前专利权人： Union Switch & Signal Inc.
- 当前专利权人地址： PA Pittsburgh
- 主分类号： B61L5/18
- IPC分类号： B61L5/18 ; B61L23/00
摘要：
A railway signal having a housing, in which the housing has an annular ledge thereon. The annular ledge has first and second opposed surfaces. One or more portions of the second ledge surface, preferably cast raised bosses, are machined so as to have a selected height. A reflector is mounted upon the first ledge surface. Also attached to the signal housing is a lamp receptacle bracket. The lamp receptacle bracket has a first end that is mounted upon the one or more machined portions of the second ledge surface. The lamp receptacle bracket also has a second end that has a lamp receptacle attached thereto. An insulating plate is disposed between the lamp receptacle flat portion and the lamp receptacle bracket flat surface.
公开/授权文献
- US4488656A Stopper for vials 公开/授权日：1984-12-18