Railway highway crossing signal
US5664744A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1995 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Jul 11, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L5/1854
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.