Asphalt repair apparatus with dry, radiant heat source
First Claim
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1. A portable device for transporting asphalt repair materials for use in repairing potholes in asphalt pavements, the device comprising:
- a body adapted to be mounted on a portable base for transporting the body to a repair site, the body having a hopper compartment with a V-shaped bottom wall for transporting asphalt mix materials and a generally V-shaped heating chamber located below the hopper compartment, the V-shaped bottom wall of the hopper compartment defining an upper extent of the heating chamber;
a screw conveyor mounted in the bottom of the hopper compartment for dispensing asphalt mix materials therefrom;
a paddle shaft located above the screw conveyor in the hopper compartment for agitating the hopper materials;
a dry heat means associated with the heating chamber for heating the chamber and for transferring heat to the hopper compartment through the hopper bottom wall wherein the dry heat means comprises a pair of oppositely arranged retort tubes located within the heating chamber on either side of the V-shaped bottom wall of the hopper, the retort tubes being heated by a thermostatically controlled gas burner for supplying dry, radiant heat to the bottom wall of the hopper to maintain the asphalt mix materials in a workable state.
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Abstract
A portable device is shown for transporting asphalt repair materials for use in repairing potholes in asphalt pavements. The device has a body with a hopper compartment for transporting and dispensing asphalt mix materials. A dry, radiant heat source is located below the hopper compartment and heats the asphalt mix. Tack oils are held and dispensed from a separate tack oil tank.
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Citations
10 Claims
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1. A portable device for transporting asphalt repair materials for use in repairing potholes in asphalt pavements, the device comprising:
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a body adapted to be mounted on a portable base for transporting the body to a repair site, the body having a hopper compartment with a V-shaped bottom wall for transporting asphalt mix materials and a generally V-shaped heating chamber located below the hopper compartment, the V-shaped bottom wall of the hopper compartment defining an upper extent of the heating chamber; a screw conveyor mounted in the bottom of the hopper compartment for dispensing asphalt mix materials therefrom; a paddle shaft located above the screw conveyor in the hopper compartment for agitating the hopper materials; a dry heat means associated with the heating chamber for heating the chamber and for transferring heat to the hopper compartment through the hopper bottom wall wherein the dry heat means comprises a pair of oppositely arranged retort tubes located within the heating chamber on either side of the V-shaped bottom wall of the hopper, the retort tubes being heated by a thermostatically controlled gas burner for supplying dry, radiant heat to the bottom wall of the hopper to maintain the asphalt mix materials in a workable state. - View Dependent Claims (2, 3, 4, 5)
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6. A portable device for transporting asphalt repair materials for use in repairing potholes in asphalt pavements, the device comprising:
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a body adapted to be mounted on a portable base for transporting the body to a repair site, the body having a hopper compartment with a V-shaped bottom wall for transporting asphalt mix materials and a generally V-shaped heating chamber located below the hopper compartment, the V-shaped bottom wall of the hopper compartment defining an upper extent of the heating chamber; a screw conveyor mounted in the bottom of the hopper compartment for dispensing asphalt mix materials therefrom; a paddle shaft located above the screw conveyor in the hopper compartment for agitating the hopper materials; a dry heat means associated with the heating chamber for heating the chamber and for transferring heat to the hopper compartment through the hopper bottom wall to maintain the asphalt mix materials in a workable state; wherein the dry heat means comprises a pair of oppositely arranged retort tubes located within the heating chamber on either side of the V-shaped bottom wall of the hopper, the retort tubes being heated by a thermostatically controlled gas burner for supplying dry, radiant heat to the bottom wall of the hopper; and wherein each retort tube forms a single pass loop which has a burner installed at one extent thereof and which communicates with an exhaust stack at an opposite extent thereof, each retort tube being provided in the shape of an inclined U arranged in a plane which is generally parallel to a selected one of the oppositely extending, insulated bottom wall portions of the heating chamber, each retort tube having a pair of outlets to the exterior of the tank, one of the outlets having the burner mounted therein and the other of the outlets serving as an exhaust conduit. - View Dependent Claims (7)
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8. A method of repairing a pothole in an asphalt pavement, comprising the steps of:
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providing a body on a portable base for transporting the body to a repair site, the body being equipped with a hopper compartment with a V-shaped bottom wall for transporting asphalt mix materials and a generally V-shaped heating chamber located below the hopper compartment, the V-shaped bottom wall of the hopper compartment defining an upper extent of the heating chamber; providing a screw conveyor mounted in the bottom of the hopper compartment for dispensing asphalt mix materials therefrom; providing a paddle shaft located above the screw conveyor in the hopper compartment for agitating the hopper materials; utilizing a dry heat means associated with the heating chamber for heating the chamber and for transferring heat to the hopper compartment through the hopper bottom wall to maintain the asphalt mix materials in a workable state; and dispensing asphalt mix materials from the hopper compartment to fill and repair the pothole. - View Dependent Claims (9, 10)
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Specification