Coating processes – Measuring – testing – or indicating – Thickness or uniformity of thickness determined
Patent
1993-02-16
1994-03-22
Bell, Janyce
Coating processes
Measuring, testing, or indicating
Thickness or uniformity of thickness determined
427137, 427140, 427286, B05D 500
Patent
active
052962563
ABSTRACT:
A method and apparatus for painting traffic marking lines over old paint markings on road pavement is disclosed. The apparatus, normally installed on a marking vehicle having a paint gun and a paint supply, includes a detector which illuminates the pavement and utilizes a spectroscope to analyze the return inspection for the presence of one or more known preselected constituents of the old paint marking to control actuation of the valve on the paint gun and also track the old pavement marking. The apparatus also provides a paint gun delay function to account for the lead distance between detector and paint gun and enables the application of new paint markings directly over the old markings at a relatively high rate of vehicle speed.
REFERENCES:
patent: 3229660 (1966-01-01), McLucas et al.
patent: 4167592 (1979-09-01), Gabel
patent: 4699510 (1987-10-01), Alguard
patent: 5054959 (1991-10-01), Wilson et al.
Bell Janyce
Research Derivatives, Inc.
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