Optics: measuring and testing – Inspection of flaws or impurities
Reexamination Certificate
2006-04-04
2006-04-04
Rosenberger, Richard A. (Department: 2877)
Optics: measuring and testing
Inspection of flaws or impurities
C033S287000
Reexamination Certificate
active
07023539
ABSTRACT:
A device for monitoring the superstructure state especially of fixed railroad tracks, with a height sensor system, which is installed in a measuring vehicle, preferably constructed as a laser scanning system, for determining the height position of an anchor clamp and/or of the base of a rail and/or of a railroad tie.
REFERENCES:
patent: 3828440 (1974-08-01), Plasser et al.
patent: 4040738 (1977-08-01), Wagner
patent: 5786750 (1998-07-01), Cooper
patent: 6119353 (2000-09-01), Grønskov
patent: WO 96/31655 (1996-10-01), None
Jordan and Hamburg LLP
Pfleiderer Infrastrukturtechnik GmbH & Co. KG
Rosenberger Richard A.
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