Railway switches and signals – Electric actuation – Switch signals
Reexamination Certificate
2006-11-14
2006-11-14
Le, Mark T. (Department: 3617)
Railway switches and signals
Electric actuation
Switch signals
C246S253000
Reexamination Certificate
active
07134632
ABSTRACT:
An apparatus for sensing movement of a point rail away from a stock rail by a selected distance, by closing a switch to shunt a track circuit. Manual resetting of the point rail is required to reset the apparatus to open the switch.
REFERENCES:
patent: 2575994 (1951-11-01), Bone et al.
patent: 5598992 (1997-02-01), Chew
patent: 5806809 (1998-09-01), Danner
patent: 1 348 607 (2003-01-01), None
patent: WO 014710 (2004-02-01), None
International Search Report, PCT/US06/04804, filed Feb. 2006.
Brown Augustus
Catanach, III Wallace M.
Ruggiero Andrew
Voth Michael
Wood Brandi
General Electric Company
Le Mark T.
Spinks Gerald W.
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