Abstract: A mobile concrete pumping vehicle including a reduced-weight boom arm. The pumping vehicle includes a boom arm that is extendible between a folded position and an extended position. The boom arm carries molded and fabricated composite boom pipe sections. Each pipe section is formed from a composite material having a reinforcing outer layer and a wear resistant inner layer. Preferably, the outer layer is formed using a filament winding process while the inner layer is molded of wear resistant urethane. Each boom section is formed by centrifugal molding a urethane tube then secondarily winding carbon fiber onto the exterior of the tube. The centrifugal force created by the rotating mold provides a bubble free urethane tube. The filament winding provides the hoop strength needed to withstand the internal pressures of the concrete pumping process.

Abstract: A system for collecting undesired concrete discharged from the concrete supply pipe of a mobile concrete pumping vehicle. The system includes a catch basin having an outer wall and a bottom wall that define an open reservoir. The catch basin includes an open top end that receives the second, discharge end of a delivery hose connected to the concrete supply pipe that distributes concrete out through the delivery hose. Preferably, the reservoir is sized to receive a sufficient volume of concrete to prevent the undesired discharge of the concrete during movement of the boom arm of the pumping vehicle. The catch basin includes a plurality of suspension straps that suspend the catch basin around the discharge end of the delivery hose during movement of the boom arm. The suspension straps are each connected to a support bracket mounted to the boom arm of the concrete pumping vehicle.

Abstract: A concrete pumping unit, such as a mobile pumping vehicle, including a reduced-weight and/or lengthened boom arm. The pumping vehicle includes a boom arm that is extendible between a folded position and an extended position. The boom arm carries a supply pipe formed from a plurality of pipe sections formed from a lightweight urethane. Each pipe section is formed from a composite material having a reinforcing outer layer and a wear resistant inner layer. Preferably, the outer layer is formed from a braided fiber material while the inner wear resistant layer is formed from urethane. Each boom pipe section includes a pair of end couplings adhesively attached to the outer surface of the boom pipe section.

Abstract: A support structure for supporting a concrete placing boom above a work site. The support structure includes a support mast having a generally smooth outer surface. The support mast receives an adapter that can be removed from one support mast and attached to another. The adapter includes a mast receiving portion having a pressure coupling for holding the adapter in contact with the outer surface of the mast. The adapter further includes a boom attachment portion that allows the pedestal of the concrete placing boom to be securely attached to the adapter. The adapter includes a central guide pin that is received within a guide opening formed in a top plate of the support mast. The interaction between the guide pin and the central opening on the mast aids in guiding the adapter onto the mast.

Abstract: An outrigger assembly useful for supporting and stabilizing a mobile work machine, such as a vehicle-mounted telescopic belt conveyor, while the work machine is operating. The outrigger assembly includes a stationary support housing mounted to the vehicle body and a telescoping inner housing that is movable into and out of the support housing. A leg assembly, in turn, telescopes into and out of the inner housing and includes a leg member that is pivotally mounted to a mounting beam of the leg assembly. The leg member includes a support pad that contacts the ground when the leg member is in its ground-engaging position and covers the opening to the inner housing when the leg assembly is in its fully retracted position.

Abstract: A vehicle-mounted conveyor system including an infeed conveyor assembly mounted for powered rotation relative to the vehicle. The conveyor system includes a discharge conveyor assembly pivotally mounted to a main turret, which in turn is mounted to a primary turntable for powered rotation relative to the vehicle. The discharge conveyor assembly includes a telescoping boom and a moving discharge conveyor belt to supply an aggregate material, such as concrete, to a desired point at the work site. An infeed conveyor assembly is rotatably mounted to the main turret by a powered secondary turntable. The powered secondary turntable is mechanically driven by a drive mechanism, such that the infeed conveyor assembly can be rotated relative to the main turret. The secondary turntable and the primary turntable are independently operable and rotate about a common vertical axis, such that the infeed conveyor assembly and the discharge conveyor assembly can be independently rotated relative to the vehicle.

Abstract: A vehicle-mounted conveyor system including an infeed conveyor assembly having a telescoping feed section including a pivotable outer portion. The feed section of the infeed conveyor assembly includes an outer portion pivotally mounted to an inner portion such that the outer portion can be positioned at an angle relative to the inner portion. The outer portion of the feed section includes a support assembly such that the outer portion can be supported on the ground in a generally horizontal orientation. The outer section includes a collapsible collection bin having a pair of hinged sidewalls and a pair of hinged end walls that can be joined to form the collection bin above the conveyor belt of the infeed conveyor assembly. The combination of the collapsible bin and horizontal outer portion of the feed section of the infeed conveyor assembly allows the conveyor system to be used in directly unloading a supply of aggregate material without the requirement of a separate hopper and additional unloading equipment.

Abstract: A transportable apparatus for unloading material directly from a dump truck onto a conveyor assembly. The transportable apparatus includes an inclined ramp that is adapted to permit a dump truck to back onto the ramp. A hopper assembly is movably mounted to the rear end of the inclined ramp and is positioned to receive material unloaded from the dump truck. The hopper assembly includes a hopper bin mounted to the back end of the inclined ramp by a pair of support arms. The first end of the each support arm is connected to a drive member such that the hopper bin can be raised and lowered relative to the inclined ramp. A wheel assembly is also mounted to the rear end of the inclined ramp. The wheel assembly is mounted between a pair of support arms. The inner end of each support arm is pivotally connected to the inclined ramp, while the outer end of the each support arm for the wheel assembly is connected to a wheel axle.

Abstract: A vehicle-mounted conveyor system including an infeed conveyor assembly mounted for powered rotation relative to the vehicle. The conveyor system includes a discharge conveyor assembly pivotally mounted to a main turret, which in turn is mounted to a primary turntable for powered rotation relative to the vehicle. The discharge conveyor assembly includes a telescoping boom and a moving discharge conveyor belt to supply an aggregate material, such as concrete, to a desired point at the work site. An infeed conveyor assembly is rotatably mounted to the main turret by a powered secondary turntable. The powered secondary turntable is mechanically driven by a drive mechanism, such that the infeed conveyor assembly can be rotated relative to the main turret. The secondary turntable and the primary turntable are independently operable and rotate about a common vertical axis, such that the infeed conveyor assembly and the discharge conveyor assembly can be independently rotated relative to the vehicle.