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

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