A system for re-surfacing a pavement surface includes a conduit configured to transfer a spreadable material and a material application and dispersal device (MADD) coupled in flow communication with the conduit. The MADD includes at least one material application mechanism (MAM) coupled in flow communication with the conduit. The system also includes a pressurization device coupled in flow communication with the conduit and the MADD. The pressurization device is configured to channel the spreadable material into the at least one MAM and to generate a positive pressure within the at least one MAM to facilitate delivering the spreadable material to the pavement surface.

An automotive building machine comprising a material bunker for accommodating therein pavement material to be laid is provided, the building machine being a road finisher or a charger. The material bunker comprises at least one lifting device, which is adapted to enter into releasable engagement with a movable tailgate of a truck supplying the material bunker with the pavement material and which is configured for displacing the movable tailgate of the truck between a first position and a second position. A method used for this purpose is also provided.

An automotive building machine comprising a material bunker for accommodating therein pavement material to be laid is provided, the building machine being a road finisher or a charger. The material bunker comprises at least one lifting device, which is adapted to enter into releasable engagement with a movable tailgate of a truck supplying the material bunker with the pavement material and which is configured for displacing the movable tailgate of the truck between a first position and a second position. A method used for this purpose is also provided.

A device for reinstatement of a micro-trench that includes a hopper. The hopper includes a top opening and a bottom opening, the top opening being larger than the bottom opening. The device also includes a valve portion connected to the bottom opening of the hopper and a tube connected to the valve portion. The device also includes a dynamic plate portion including a top opening, a bottom opening, and a conduit between the top and bottom openings. The top opening of the plate portion is connected to the tube, and the bottom opening includes a length and a width. The dynamic plate portion allows the device to maintain positive contact with the pavement even when the surface of the pavement is angled or uneven.

An aggregate spreading system includes a dump truck that has a cab and a bed. The bed may contain an aggregate. A transport unit is coupled to the dump truck. The transport unit is positioned on the bed to urge the aggregate forwardly in the bed. A distribution unit is coupled to the dump truck. The distribution unit is positioned on the bed to receive the aggregate from the transport unit. Thus, the distribution unit distributes the aggregate onto a support surface. The distribution unit levels the aggregate on the support surface when the aggregate has been released onto the support surface.

A conveyor system adapted for use on an asphalt paver comprising a conveyor system frame, a first pulley that is rotatably mounted to the frame, a second pulley that is rotatably mounted to the frame and spaced apart from the first pulley, and a belt having a pulley-contacting surface and an asphalt-contacting surface and being disposed around the first pulley and the second pulley. The preferred conveyor system also comprises a wiper that is adapted to remove asphaltic material from the asphalt-contacting surface of the belt and a means for rotating the first pulley that is adapted to rotate the first pulley. The preferred conveyor system is adapted to convey asphaltic material between a first area adjacent to the second pulley and a second area adjacent to the first pulley. A method for conveying asphaltic material in a paver comprising providing a conveyor system and conveying asphaltic material.

The disclosure relates to a conveyor device that comprises a conveyor belt with a conveying strand for conveying bulk material and a return strand. The conveying strand has a conveying surface on which a material flow is running whose feed rate is given by the product of a linear velocity of the conveying strand and a conveying cross-section of the material flow. The disclosure is characterized by a variable flow limiting device that is movable between a first position and a second position. The conveying cross-section downstream of the flow limiting device is smaller in the second position than in the first position.

The disclosure relates to a conveyor device that comprises a conveyor belt with a conveying strand for conveying bulk material and a return strand. The conveying strand has a conveying surface on which a material flow is running whose feed rate is given by the product of a linear velocity of the conveying strand and a conveying cross-section of the material flow. The disclosure is characterized by a variable flow limiting device that is movable between a first position and a second position. The conveying cross-section downstream of the flow limiting device is smaller in the second position than in the first position.

A hopper spreader for installation on a vehicle has a flow regulator configured to regulate flow of particulate material from the container. The spreader has a conveyor mechanism for conveying particulate material to a spinner that distributes the particulate material to the surface over which the vehicle moves. The spreader also includes a flow regulation mechanism located between the particulate material in the hopper and the conveyor mechanism which is configured to regulate flow of material from the hopper to the conveyor mechanism.

A method for operating a ratchet assembly. The method includes, when a ratchet lock mechanism is in a first locked position, causing a drive mechanism to rotate by operating a steer cylinder in a selected direction until a first predetermined value, which may be associated with an amount of rotation of the drive mechanism, is reached. The method includes unlocking the ratchet lock mechanism, and resetting the steer cylinder by operating the steer cylinder in an opposite direction until a second predetermined value is reached. The method includes locking the ratchet lock mechanism in a second locked position, and, upon locking the ratchet lock mechanism in the second locked position, causing the drive mechanism to further rotate by operating the steer cylinder in the selected direction until a third predetermined value is reached, wherein the third predetermined value is associated with a selected amount of rotation of the drive mechanism.