Process and apparatus for highway marking
First Claim
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1. A process for forming a coherent refractory mass on the surface of a road comprising the steps of:
- providing a road marking composition comprising one or more non-combustible dry powders and one or more metallic combustible powders and an oxidizer;
transporting the composition to a combustion chamber;
igniting the mixture in the combustion chamber so that the majority of the combustible particles react in an exothermic manner with the oxidizer inside of the combustion chamber and release sufficient heat to form a high temperature coherent refractory mass under the action of the heat of combustion;
projecting said high temperature heated mass from the combustion chamber onto the surface of the road so that the mass adheres durably to the surface of the road; and
permitting the mass to cool sufficiently for it to solidify on the surface of the road.
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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. The combustion chamber can be operative with a reverse vortex to cool the walls of the chamber.
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Citations
12 Claims
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1. A process for forming a coherent refractory mass on the surface of a road comprising the steps of:
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providing a road marking composition comprising one or more non-combustible dry powders and one or more metallic combustible powders and an oxidizer;
transporting the composition to a combustion chamber;
igniting the mixture in the combustion chamber so that the majority of the combustible particles react in an exothermic manner with the oxidizer inside of the combustion chamber and release sufficient heat to form a high temperature coherent refractory mass under the action of the heat of combustion;
projecting said high temperature heated mass from the combustion chamber onto the surface of the road so that the mass adheres durably to the surface of the road; and
permitting the mass to cool sufficiently for it to solidify on the surface of the road. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification