Roadway paving supply truck
First Claim
1. A roadway paving apparatus for applying asphalt binder material and aggregate material to a ground surface, comprising:
- a vehicle having an engine and wheels, the vehicle having opposed front and rear ends;
an aggregate material dispensing system carried by the vehicle, comprising;
(a) an input hopper disposed proximate the front end of the vehicle adapted to receive aggregate material;
(b) an output hopper disposed proximate the rear end of the vehicle, the output hopper converging toward a discharge port adapted to discharge aggregate material over the ground surface;
(c) a conveyor mechanism extending between the input hopper and the output hopper, the conveyor mechanism adapted to transport aggregate material from the input hopper to the output hopper;
an asphalt binder material dispensing system carried by the vehicle separate from the aggregate material system such that asphalt binder material and aggregate material are not mixed prior to aggregate material being dispensed through the discharge port, the asphalt binder material dispensing system comprising;
(a) a tank for holding asphalt binder material;
(b) a spray bar between the discharge port and the front end, the spray bar having a plurality of nozzles adapted to spray asphalt binder material; and
(c) a pump mechanism adapted to pump asphalt binder material from the tank to the spray bar; and
wherein all of the wheels roll on the ground surface between the spray bar and the front end such that no wheels roll over asphalt binder material and aggregate material that are discharged by the spray bar and through the output hopper.
1 Assignment
0 Petitions
Accused Products
Abstract
A roadway paving system for chipsealing a roadway surface comprising a novel roadway paving vehicle and a novel supply truck is provided. The roadway paving vehicle comprises an asphalt binder material dispensing system and an aggregate material dispensing system. The asphalt binder material dispensing system includes an asphalt tank and a sprayer that sprays a first layer of the asphalt binder material over the roadway surface. The aggregate material dispensing system comprises an aggregate hopper and conveyor mechanism that discharges a second layer of aggregate material over the roadway surface. No wheels run over a freshly laid surface. Supply trucks are linked to the roadway paving vehicle to refill the roadway paving vehicle on a continuous basis without the need of stopping the vehicle.
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Citations
70 Claims
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1. A roadway paving apparatus for applying asphalt binder material and aggregate material to a ground surface, comprising:
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a vehicle having an engine and wheels, the vehicle having opposed front and rear ends;
an aggregate material dispensing system carried by the vehicle, comprising;
(a) an input hopper disposed proximate the front end of the vehicle adapted to receive aggregate material;
(b) an output hopper disposed proximate the rear end of the vehicle, the output hopper converging toward a discharge port adapted to discharge aggregate material over the ground surface;
(c) a conveyor mechanism extending between the input hopper and the output hopper, the conveyor mechanism adapted to transport aggregate material from the input hopper to the output hopper;
an asphalt binder material dispensing system carried by the vehicle separate from the aggregate material system such that asphalt binder material and aggregate material are not mixed prior to aggregate material being dispensed through the discharge port, the asphalt binder material dispensing system comprising;
(a) a tank for holding asphalt binder material;
(b) a spray bar between the discharge port and the front end, the spray bar having a plurality of nozzles adapted to spray asphalt binder material; and
(c) a pump mechanism adapted to pump asphalt binder material from the tank to the spray bar; and
wherein all of the wheels roll on the ground surface between the spray bar and the front end such that no wheels roll over asphalt binder material and aggregate material that are discharged by the spray bar and through the output hopper. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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15. A method of chipsealing a roadway surface with a roadway paving vehicle, the roadway paving vehicle comprising a front end and a rear end, the method comprising:
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storing a supply of asphalt binder material in a tank on the roadway paving vehicle;
transporting asphalt binder material from the tank to a spray bar at the rear end of the roadway paving vehicle;
spraying asphalt binder material from the spray bar at a first span over the roadway surface forming a layer of asphalt binder material on the roadway surface;
storing a supply of aggregate material in an input hopper at the front end of the roadway paving vehicle;
transporting aggregate material from the input hopper to an output hopper at the rear end of the roadway paving vehicle;
discharging aggregate material from the output hopper at a second span over the layer of asphalt binder material; and
preventing intermixing of asphalt binder material and aggregate material prior to the discharging of aggregate material and spraying of asphalt binder material.
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26. A supply truck, comprising:
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a chassis supported on wheels extending between front and rear ends;
a supply hopper supported by the chassis having a discharge region at the rear end;
a conveyor mechanism in the supply hopper adapted to convey aggregate material towards the discharge region;
a tailgate closing the discharge region of the supply hopper, the tailgate moving rearwardly relative to the chassis to open the discharge region to allow discharge of aggregate material from the rear end of the supply truck;
a supply tank supported by the chassis carrying liquid material; and
a transfer conduit carried by the tailgate and connected to the supply tank, the transfer conduit including a hydraulic coupling, the transfer conduit and hydraulic coupling extending rearwardly when the tailgate moves rearwardly.
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35. A supply truck, comprising:
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a chassis supported on front wheels and rear wheel sets, the chassis extending between front and rear ends;
a supply hopper supported by the chassis having a discharge region at the rear end;
a conveyor mechanism in the supply hopper adapted to convey aggregate material toward the discharge region;
a tailgate closing the discharge region of the supply hopper, the tailgate moving rearwardly relative to the chassis to open the discharge region to allow discharge of aggregate material from the rear end of the supply truck;
a supply tank carrying asphalt binder material, the supply tank being disposed beneath the conveyor mechanism and the hopper and between the front wheel set and the rear wheel set, whereby a low center of gravity is provided when the tank is filled with liquid; and
a transfer conduit connected to the supply tank, the transfer conduit including a hydraulic coupling.
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38. A method of chipsealing a roadway surface using a roadway paving vehicle having wheels, comprising:
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spraying asphalt binder material from the roadway paving vehicle over a roadway surface forming a layer of asphalt binder material on the roadway surface;
discharging aggregate material from the roadway paving vehicle over the layer of asphalt binder material;
preventing intermixing of asphalt binder material and aggregate material prior to the application of aggregate material and spraying of asphalt binder material to the roadway surface; and
insuring that no wheels of the roadway paving vehicle roll over the asphalt binder material or aggregate material after they are discharged onto the roadway.
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47. A roadway paving system for chipsealing a roadway surface, comprising:
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a roadway paving vehicle comprising an asphalt binder material dispensing system and an aggregate material dispensing system, the asphalt binder material dispensing system including an asphalt tank containing a first supply of asphalt binder material and a sprayer spraying a first layer of the spray asphalt binder material over the roadway surface, the aggregate material dispensing system holding a first supply of aggregate material and discharging a second layer of aggregate material over the roadway surface over the first layer, the asphalt binder material dispensing system being separate from the aggregate material system such that asphalt binder material and aggregate material are not mixed prior to aggregate material being dispensed;
at least two supply trucks, each supply truck comprising a supply hopper containing a second supply of aggregate material and supply tank containing a second supply of asphalt binder material;
a link between a first one of the supply trucks and the roadway paving vehicle including a transfer conduit transferring asphalt binder material from the supply tank to the asphalt tank, and wherein aggregate material is transferred from the supply hopper to the aggregate dispensing system; and
wherein the asphalt tank and aggregate material dispensing system have a sufficient holding capacity such that said first one of the supply trucks may be unlinked from the roadway paving vehicle and a second one of the supply trucks may be linked to the roadway paving vehicle with continuous application of asphalt binder material and aggregate material without stopping the roadway paving vehicle.
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60. A roadway paving apparatus for applying asphalt binder material and aggregate material to a ground surface, comprising:
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a vehicle having an engine and wheels, the vehicle having opposed front and rear ends;
an aggregate material dispensing system carried by the vehicle adapted to hold a supply of aggregate material and having a discharge port proximate the rear end of the vehicle behind the wheels, the discharge port adapted to discharge aggregate material over the ground surface, the aggregate material dispensing system including a conveyor mechanism extending substantially between the front and rear ends for transporting aggregate material rearwardly toward the discharge port;
an asphalt binder material dispensing system carried by the vehicle separate from the aggregate material system such that asphalt binder material and aggregate material are not mixed prior to aggregate material being dispensed through the discharge port, the asphalt binder material dispensing system adapted to hold a supply of asphalt binder material, the asphalt binder material dispensing system including a sprayer having a spray bar with a plurality of nozzles, the spray bar adapted to spray asphalt binder material through the nozzles behind the wheels; and
wherein all of the wheels roll on the ground surface between the spray bar and the front end such that no wheels roll over asphalt binder material and aggregate material that are discharged by the spray bar and through the output hopper. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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Specification