RAILROAD CROSSING SIGNALLING SYSTEM

The patent relates to a highway-railroad crossing signalling system using microwave telemetry to convey control information from a remote sensing location to a receiver coupled to an active motorist warning device.

• Supplemental Notes:
  • Supersedes PB-216 155.
• Corporate Authors:

  Department of Transportation

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Hopkins, J B
• Publication Date: 0

Media Info

• Pagination: 8 p.

Subject/Index Terms

• TRT Terms: Grade crossing protection systems; Intersections; Microwave communication systems; Microwaves; Patents; Railroads; Remote sensing; Safety; Signal devices; Telecommunications; Telemetry; Warning systems
• Old TRIS Terms: Grade crossing protection; Microwave communication
• Subject Areas: Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00136640
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: PAT-APPK-184-828 Patent, PATENT-3 758 775
• Files: TRIS, USDOT
• Created Date: Jul 13 1976 12:00AM