Railway switches and signals – Block-signal systems – Automatic
Patent
1992-03-02
1993-12-21
Huppert, Michael S.
Railway switches and signals
Block-signal systems
Automatic
34082564, 34082557, 246182R, B61L 2100
Patent
active
052715841
ABSTRACT:
A railway signalling system uses coded electrical information signals to convey vital signal information to wayside signal locations. The coded information signals are in the form of unipolar three-pulse DC signals capable of being sent or received during a 1.4 second transmission or receiving cycle. The system establishes greater signalling capability than prior systems which used only a two-pulse DC signal.
REFERENCES:
patent: 1824134 (1931-09-01), Hailes
patent: 2169603 (1939-08-01), Failor
patent: 2525893 (1950-10-01), Gloess
patent: 2617873 (1952-11-01), Lovell-Foot et al.
patent: 2779933 (1957-01-01), Bradburd
patent: 2953772 (1960-09-01), Coley
patent: 3051928 (1962-08-01), Sullivan
patent: 3525044 (1970-08-01), Richmond
patent: 3532877 (1970-10-01), Thorne-Booth
patent: 3811112 (1974-05-01), Hoven et al.
patent: 3891985 (1975-06-01), Oigarden et al.
patent: 3968477 (1976-07-01), Sumida et al.
patent: 4000872 (1977-01-01), Grundy
patent: 4171468 (1979-10-01), Reiner
patent: 4459591 (1984-07-01), Haubner et al.
patent: 4482947 (1984-11-01), Zato et al.
patent: 4732355 (1988-03-01), Parker
patent: 4833467 (1989-05-01), Kobayashi et al.
patent: 4931790 (1990-06-01), Kobayashi et al.
patent: 5006989 (1991-04-01), Parker
Hochman Robert I.
Petit William A.
General Railway Signal
Huppert Michael S.
Lowe Scott L.
Lukacher M.
LandOfFree
Pulse code railway signalling 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 Pulse code railway signalling system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulse code railway signalling system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-304498