Point switching device

Details Point switching device Point switching device

2008-05-06

2008-05-06

Le, Mark (Department: 3617)

Railway switches and signals

Switches

C246S231000, C246S227000

Reexamination Certificate

active

07367533

ABSTRACT:
A point switching device that is disposed at a diverging point on tracks on which a movable body travels is provided. This point switching device includes: a point that rotates around a support point on one end, and can move between a first position and a second position; a first coil that generates an induction field to drive the point to the first position; a second coil that generates an induction field to drive the point to the second position; and an excitation control unit that selectively supplies an intermittent exciting current to the first coil or the second coil.

REFERENCES:
patent: 1548940 (1925-08-01), Gill
patent: 4223857 (1980-09-01), Hussein
patent: 5085148 (1992-02-01), Konno
patent: 6039291 (2000-03-01), Dobson, IV
patent: 3328479 (1992-09-01), None
patent: 9084962 (1997-03-01), None
International Search Report for PCT/JP2004/000288 mailed Feb. 24, 2004.

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