Road structure – process – or apparatus – Process
Patent
1995-05-25
1997-02-04
Bennett, Henry A.
Road structure, process, or apparatus
Process
404 93, 404 95, 432227, 432230, E01C 306
Patent
active
055991335
ABSTRACT:
A method and apparatus for painting highway stripes and other patterns on a road surface includes the steps of heating the road surface to be painted or treated with a protective coating to a temperature typically in the range of 150.degree. F. to 165.degree. F. Paint is applied in spray form, the resin and hardener ingredients being mixed preparatory to spraying by a spray head. The paint mixture is sprayed onto the heated road surface as soon after the heat treatment as is practical. The paint spray may be heated as it passes through the nozzle. Granulated glass beads may be dropped onto the paint coating to enhance absorption of heat energy by the paint. The spraying operation is followed as soon as practical by a post-heating operation which preferably achieves temperatures in the aforesaid range, the pre- and post-heating operations significantly enhancing the cross-linking and drying of the paint or other coating enabling substantially immediate use of the road surface by vehicular and/or pedestrian traffic. The energy levels and the heating units and their spacing from the road surface are adjusted to heat the road surface (and paint) to the desired temperature.
REFERENCES:
patent: 3472200 (1969-10-01), Gerling
patent: 4378207 (1983-03-01), Smith
patent: 4443185 (1984-04-01), Smith
patent: 4474552 (1984-10-01), Smith
patent: 4604054 (1986-08-01), Smith
patent: 4765773 (1988-08-01), Hopkins
patent: 5090898 (1992-02-01), Smith
patent: 5174751 (1992-12-01), Chapman et al.
Costello Bernard J.
Hogan Brendan F.
Argus International
Bennett Henry A.
O'Connor Pamela A.
Weinstein Louis
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