Pavement coating system having shiftable spray bar
AssigneeBergkamp Incorporated
InventorsJoesph Pembleton, Maynard Cunningham, Jason Bergkamp
Life of this patent
Estimating the term…
Abstract
A coating applicator vehicle is configured to selectively discharge a flow of liquid emulsion and aggregate onto a roadway. The vehicle includes a rolling chassis and a powered spraying assembly supported by the chassis. The spraying assembly includes a spray bar assembly including a shiftable spray boom and a plurality of spray nozzles.
Claims40
A coating applicator vehicle configured to selectively discharge a flowable pavement coating material onto a roadway, said coating applicator vehicle comprising:
- a rolling chassis operable to be advanced in a forward direction along the roadway;
- and
- a spray bar assembly supported by the rolling chassis and extending transversely to the forward direction to selectively discharge coating material along a lateral direction,
- said spray bar assembly including a shiftable spray boom, spray nozzles, and a frame mounted relative to the chassis,
- said spray boom presenting an elongated chamber to receive and carry the coating material laterally,
- said spray nozzles fluidly communicating with the chamber to receive a flow of the coating material from the spray boom and discharge the coating material,
- said spray boom being shiftably supported by the frame to move laterally relative to the rolling chassis,
- said frame supporting the spray boom relative to the rolling chassis and permitting the spray boom to shift vertically relative to the rolling chassis,
- said spray bar assembly including a spray bar link that shiftably interconnects the rolling chassis and the frame and permits the frame to move vertically relative to the rolling chassis.
A spray bar assembly operable to be mounted on and advanced in a longitudinal travel direction with a vehicle to discharge flowable pavement coating material onto a roadway, where the material includes a liquid emulsion and aggregate, said spray bar assembly comprising:
- a shiftable spray boom presenting an elongated chamber to receive and carry the coating material laterally;
- and
- a plurality of spray nozzles fluidly communicating with the chamber to receive a flow of coating material from the spray boom and to discharge the flow of coating material,
- said spray nozzles being mounted relative to the spray boom and aligned longitudinally with each other to cooperatively define a lateral line of nozzles that extends along the length of the spray boom, with each pair of adjacent spray nozzles being separated by a spacing dimension,
- each of said spray nozzles discharging the coating material in a generally planar fan pattern that impinges the roadway along a laterally extending spray line,
- said line defining a maximum fan width dimension greater than the spacing dimension,
- said spray nozzles being positioned so that the spray line associated with each spray nozzle extends at an acute angle relative to the lateral line, with the fan patterns of adjacent spray nozzles laterally overlapping one another without intersecting.
Dependencies are inferred from the claim text.