Pyrotechnic patty and method for attaching pavement markers

Road structure – process – or apparatus – Traffic director – Attenuated lane marker type

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404 13, 156 71, E01F 906

Patent

active

055405177

ABSTRACT:
A pyrotechnic patty for rapidly attaching a raised pavement marker to a paved roadway surface is disclosed. The pyrotechnic patty consists of a stable mixture of oxidizer and fuel formed into a fattened shape that, once ignited, deflagrates rapidly producing a large amount of heat. The heat melts an adhesive pad that, after cooling and solidifying, permanently attaches the pavement marker to the paved surface. Preferably, the adhesive pad is formed of bitumen and the pyrotechnic patty is formed of a composition, in predetermined proportions, of potassium nitrate, aluminum nitrate, shredded newspaper, aluminum, and sulfur. The pyrotechnic patty is controllably ignited by passing an ignition current through a nichrome wire. The pyrotechnic patty is particularly suitable for use in an automatic marker attachment system.

REFERENCES:
patent: 3575092 (1971-04-01), Freeman
patent: 3590052 (1975-05-01), Broeck
patent: 3864052 (1975-02-01), Blomberg
patent: 3980393 (1976-09-01), Heasley et al.
patent: 4035059 (1977-07-01), DeMaster
patent: 4145112 (1979-03-01), Crone et al.
patent: 4623280 (1986-11-01), Stenemann
patent: 4634310 (1987-01-01), Clarke
patent: 4815890 (1989-03-01), Duncan
patent: 4887741 (1989-12-01), Downing
patent: 4936485 (1990-06-01), Downing
patent: 4974990 (1990-12-01), Anderson et al.
patent: 5108217 (1992-04-01), Bloom
patent: 5310278 (1994-05-01), Kaczmarczik et al.
patent: 5316406 (1994-05-01), Wyckoff
Hawley's Condensed Chemical Dictionary, Twelfth Edition, Van Nostrand Reinhold, 1993, p. 1036.
Bailey, A. et al., "Explosives, Propellants and Pyrotechnics," London, Washington: Brassey's 1989, pp. 115-120.
Conklin, J., "Chemistry of Pyrotechnics: Basic Principles and Theory," New York: Marcel Dekker, Inc., 1985, pp. 26-27, 49-81.
Varoth, R. et al., "Development of a Method of Fastening Reflectors to Highway Surfaces," RISI Letter Report Oct. 18, 1993.
Sun, S. et al., "An Investigation of New Marker Adhesive Processes for Botts' Dots," AHMCT Research Report UCD-APR-94-01-31-01, Jan. 31, 1994.
Varosh, R, "Proposal for an Extension of An Investigation of New Marker Adhesive Process for Botts' Dots," Feb. 1994.
Varosh, R., "Pyrotechnic Fastening of Reflectors to Highway Surfaces," RISI Letter, Feb. 2, 1994.

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