Telephonic communications – Special services – Conferencing
Patent
1997-07-15
1999-10-05
Hong, Harry S.
Telephonic communications
Special services
Conferencing
379 37, 455404, H04M 1104, H04M 342
Patent
active
059636319
ABSTRACT:
A wayside communications safety station is used along rail lines by passengers in distress or crew members, for routine communications among maintenance personnel, and for communications among emergency services personnel. The system comprises a telephone, connectable to a telephone line, to initiate and receive telephone service, and a plurality of manually actuable switches connected to the telephone to initiate a direct dial telephonic signal. At least one voice powered system jack is connectable through the safety station to a voice-powered communications system. A further manually actuable switch is connectable to a direct current traction power control circuit adapted to supply electrical energy to a train, to selectively actuate the control circuit. A safety station additionally includes ability to reset power to the control circuit.
REFERENCES:
patent: 4176254 (1979-11-01), Tuttle et al.
patent: 4252997 (1981-02-01), Lodas et al.
patent: 4724538 (1988-02-01), Farrell
patent: 4788711 (1988-11-01), Nasco, Jr.
patent: 4817126 (1989-03-01), Hendershot
patent: 4912757 (1990-03-01), Ossandon
patent: 5086463 (1992-02-01), Vesely et al.
patent: 5283546 (1994-02-01), Scop et al.
patent: 5377256 (1994-12-01), Franklin et al.
"Communication and Control System for the New York City Railroad Tunnels", by Joseph J. Grella, P.E. et al, Conference on Railway Communication held in Basil, Switzerland, 1994.
Fazio Alfred E.
Hall Charles S.
Hong Harry S.
National Railroad Passenger Corporation
Tieu Benny Q.
LandOfFree
Wayside communications safety system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wayside communications safety system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wayside communications safety system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1180538