Asphalt pothole patcher with electrically heated riser tubes
First Claim
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;
an auger mounted in the bottom of the hopper compartment for dispensing asphalt mix materials therefrom;
an agitator shah located above the auger in the hopper compartment for agitating the hopper materials;
a primary heat source associated with the heating chamber for heating the chamber and for transferring heat to the hopper compartment through the hopper bottom wall for heating the hopper compartment during normal working hours;
a supplemental heat source located within the hopper compartment for heating the hopper compartment during non-working hours, the supplement heat source comprising one or more electric heat riser tubes which extend longitudinally within an interior of the hopper compartment and which are selected to provide low density heat to prevent asphalt materials within the hopper compartment from overheating and burning or deteriorating during periods of supplemental heating;
wherein the primary heat source is selected from the group consisting of an LP gas heating source, a CNG gas heating source, an electric heating source and a diesel fired heating source;
wherein the hopper compartment has a front wall, a rear wall and opposing side walls, the front and rear walls defining a chamber length therebetween, and wherein a pair of electric heat riser tubes are located in a generally horizontal plane which extends between the front and rear walls above the plane of the agitator shaft, the electric heat riser tubes extending generally parallel to one another on either side of the agitator shaft for a majority of the chamber length;
wherein the electric heat riser tubes are tear drop shaped in cross section and are used to contain electric heating rods which are plugged into a 220 volt electric supply outlet during non-working hours;
wherein the electric heating rods are of sufficient wattage to supply low density slow heat to the electric heat riser tubes in the range from 250°
F. to 275°
F. to prevent asphalt materials in the hopper compartment from being overheated.
1 Assignment
0 Petitions
Accused Products
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 heat transfer oil chamber is located below the hopper compartment and is heated by a primary heat source during normal working hours of the device. A pair of electrically powered electric heat riser tubes extend in a longitudinal direction in a horizontal plane in the hopper compartment above the bottom wall of the compartment for heating the asphalt materials in the hopper compartment during non-working hours.
28 Citations
8 Claims
-
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; an auger mounted in the bottom of the hopper compartment for dispensing asphalt mix materials therefrom; an agitator shah located above the auger in the hopper compartment for agitating the hopper materials; a primary heat source associated with the heating chamber for heating the chamber and for transferring heat to the hopper compartment through the hopper bottom wall for heating the hopper compartment during normal working hours; a supplemental heat source located within the hopper compartment for heating the hopper compartment during non-working hours, the supplement heat source comprising one or more electric heat riser tubes which extend longitudinally within an interior of the hopper compartment and which are selected to provide low density heat to prevent asphalt materials within the hopper compartment from overheating and burning or deteriorating during periods of supplemental heating; wherein the primary heat source is selected from the group consisting of an LP gas heating source, a CNG gas heating source, an electric heating source and a diesel fired heating source; wherein the hopper compartment has a front wall, a rear wall and opposing side walls, the front and rear walls defining a chamber length therebetween, and wherein a pair of electric heat riser tubes are located in a generally horizontal plane which extends between the front and rear walls above the plane of the agitator shaft, the electric heat riser tubes extending generally parallel to one another on either side of the agitator shaft for a majority of the chamber length; wherein the electric heat riser tubes are tear drop shaped in cross section and are used to contain electric heating rods which are plugged into a 220 volt electric supply outlet during non-working hours; wherein the electric heating rods are of sufficient wattage to supply low density slow heat to the electric heat riser tubes in the range from 250°
F. to 275°
F. to prevent asphalt materials in the hopper compartment from being overheated. - View Dependent Claims (7, 8)
-
-
2. 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 hopper compartment with a V-shaped bottom wall for transporting asphalt mix materials and 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; an auger mounted in the bottom of the hopper compartment for dispensing asphalt mix materials therefrom; an agitator shaft located above the auger in the hopper compartment for agitating the hopper materials; a primary heat source associated with the heating chamber for heating the chamber and for transferring heat to the hopper compartment through the hopper bottom wall for heating the hopper compartment during normal working hours; a supplemental heat source located within the hopper compartment for heating the hopper compartment during non-working hours, the supplement heat source comprising one or more electric heat riser tubes which extend longitudinally within an interior of the hopper compartment and which are selected to provide low density heat to prevent asphalt materials within the hopper compartment from overheating and burning or deteriorating during periods of supplemental heating; wherein the primary heat source is selected from the group consisting of an LP gas heating source, a CNG gas heating source, an electric heating source and a diesel fired heating source; wherein the hopper compartment has a front wall, a rear wall and opposing side walls, the front and rear walls defining a chamber length therebetween, and wherein a pair of electric heat riser tubes are located in a generally horizontal plane which extends between the front and rear walls above the plane of the agitator shaft, the electric heat riser tubes extending generally parallel to one another on either side of the agitator shaft for a majority of the chamber length; wherein the electric heat riser tubes are tear drop shaped in cross section and are used to contain electric heating rods which are plugged into a 220 volt electric supply outlet during non-working hours; and wherein the heating rods are 800 watt electric rods which are selected to supply low density slow heat to the electric heat riser tubes in the range from 250°
F. to 275°
F. to prevent asphalt materials in the hopper compartment from being overheated. - View Dependent Claims (3, 4, 5, 6)
-
Specification