Geometrical instruments – Miscellaneous – Light direction
Patent
1995-10-30
1998-02-24
Will, Thomas B.
Geometrical instruments
Miscellaneous
Light direction
335231, B61K 908
Patent
active
057201102
ABSTRACT:
A configuration for detecting gaps in a conductor rail for electric rail vehicles being fed through conductor rails, includes a proximity switch. A component of a current collector can be pressed against an activation element of the proximity switch if a gap in the conductor rail is present so that a conductor-rail gap signal can be produced in conjunction with an evaluation device, when there is an interrupted conductor rail. Alternatively, a proximity sensor can be used instead of a proximity switch. The proximity sensor can also detect a conductor rail directly without components of the current collector being involved in the detection.
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patent: 4625412 (1986-12-01), Bradshaw
patent: 4941269 (1990-07-01), Mori et al.
patent: 5161312 (1992-11-01), Theurer et al.
patent: 5199176 (1993-04-01), Theurer et al.
patent: 5203089 (1993-04-01), Trefouel et al.
Heckmann August
Minderlein Erich
ABB Patent GmbH
Greenberg Laurence A.
Lerner Herbert L.
Will Thomas B.
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