Process and apparatus for highway marking

• US 20050181121A1
• Filed: 03/18/2005
• Published: 08/18/2005
• Est. Priority Date: 02/06/2004
• Status: Active Grant

• Current Assignee: GJL Patents, LLC
• Original Assignee: George Jay Lichtblau
• Inventors: Lichtblau, George Jay
• Granted Patent: US 7,052,202 B2
• Time in Patent Office: Days
• US Class Current: 427/136
• CPC Class Codes: E01C 23/206 by applying fusible particulate material to the surface, e.g. by means of a gaseous stream

Abstract

A process and apparatus for forming a coherent refractory mass on the surface of a road wherein one or more non-combustible materials are mixed with one or more metallic combustible powders and an oxidizer, igniting the mixture so that the combustible metallic particles react in an exothermic manner with the oxidizer and release sufficient heat to form a coherent mass under the action of the heat of combustion and projecting this mass against the surface of the road so that the mass adheres durably to the surface of the road.

Claims

1. For use in a process for forming a coherent refractory mass on the surface of a road comprising the steps of:

mixing one or more non-combustible materials with one or more metallic combustible powders and an oxidizer;

igniting the mixture so that the combustible particles react in an exothermic manner with the oxidizer and release sufficient heat to form a coherent refractory mass under the action of the heat of combustion;

projecting said mass onto the surface of the road so that the mass adheres durably to the surface of the road; and

a road marking composition comprising at least one non-combustible dry powder and at least one combustible dry powder wherein when the mixture is ignited in the presence of an oxidizer, the combustible powder reacts in an exothermic manner with the oxidizer and releases sufficient heat to form a refractory mass under the action of the heat of combustion and cause the refractory mass to adhere durably to the surface of a road.

2. The composition of claim 1 wherein the non-combustible powder is selected from the group consisting of titanium dioxide, aluminum oxide, silicon dioxide, chromium oxide, magnesium oxide, iron oxide, zirconium oxide, or a mixture of two or more thereof;

and

wherein the combustible powder is selected from the group consisting of aluminum, silicon, zinc, magnesium, chromium, zirconium, or a mixture of two or more thereof.

3. The composition of claim 1 wherein the oxidizer is selected from the group consisting of air, compressed oxygen, liquid oxygen, ammonium perchlorate, ammonium nitrate, potassium perchlorate, potassium nitrate, sodium perchlorate, sodium nitrate, potassium chlorate and sodium chlorate or a mixture of two or more thereof.

4. The composition of claim 1 wherein the non-combustible powder is known commercially as Cohart RFG or Cohart 104 Grades.

5. The composition of claim 1 where the non-combustible material is Magnesite regenerate.

6. The composition of claim 1 wherein the non-combustible material is aluminum oxide/Bauxite-Regenerate.

7. The composition of claim 1 including iron oxide used as a catalyst in the mixture.

8. The composition of claim 1 including a coloring material that, when heated in the presence of the other materials, causes the color of the refractory mass to be a predetermined color.

9. The composition of claim 8 wherein the coloring material produces a color of yellow, red or blue.

10. The composition of claim 8, wherein the coloring material consists of tungsten, zirconium, iron oxide, or crushed colored glass.

11. The road marking composition of claim 1 comprising titanium dioxide and silicon.

12. The road marking composition of claim 1, comprising titanium dioxide, silicon dioxide, and silicon.

13. The road marking composition of claim 1, comprising aluminum oxide and silicon.

14. The road marking composition of claim 1, comprising aluminum oxide, silicon dioxide, and silicon.

15. The road marking composition of claim 1, comprising iron oxide (Fe₂O₃) and silicon.

16. The road marking composition of claim 1, comprising iron oxide (Fe₂O₃), silicon dioxide, and silicon.

17. The road marking composition of claim 1, comprising magnesium oxide and silicon.

18. The road marking composition of claim 1, comprising magnesium oxide, silicon dioxide, and silicon.