Debris-collecting systems and bagging apparatus for debris-collecting systems are provided. One bagging apparatus includes a primary bag and a dust skirt configured to wrap around the primary bag. At least an inner face of the dust skirt has an electrical charge. One debris-collecting apparatus includes an input portion, a bagging portion, and a draft inducer for drawing the air and debris through the input portion and to the bagging portion. The bagging portion has a hood, a primary bag removably positioned lowerly adjacent the hood, a dust skirt configured to wrap around the primary bag, and a bagging passage for directing air and debris to the hood from the input portion. The hood has a helical configuration extending from the bagging passage toward the primary bag. At least an inner face of the dust skirt is electrically charged. A frame having at least one wheel facilitates transportation.

A collection device for debris and animal waste is an apparatus that optimizes airflow to effectively and safely collect debris, preferably pet waste. The apparatus includes a canister, at least one handle assembly, an airflow inlet nozzle, a portable power source, and a fan assembly. The canister houses collected debris and the fan assembly. The at least one handle assembly, the airflow inlet nozzle, and the portable power source are mounted with the canister. The at least one handle assembly allows a user to easily maneuver the canister and the airflow inlet nozzle. The fan assembly suctions debris into a debris chamber of the canister through the airflow inlet nozzle. The portable power source provides the necessary power for the fan assembly to operate. The apparatus further includes an air-permeable collection bag that is housed within the debris chamber to facilitate the removal of collected pet waste within the canister.

A suction excavator includes a suction hose with a suction opening for pneumatically receiving solid or liquid suction material using a fast-flowing air stream. The suction excavator has a separator for separating the suction material from the air stream, a filter unit for cleaning the air stream, a fan unit for generating the air stream, and a recirculation channel that is connected to the pressure side of the fan unit via a volume-controllable recirculation opening. A volume-controllable secondary air opening allows secondary air from the surroundings to be supplied to the suction side of the fan unit, downstream from the filter unit in the flow direction. The recirculation channel is fluidically coupleable to the suction hose to generate a positive pressure in the recirculation channel to blow out recirculation air through the suction hose.

The invention relates to an appliance which is more particularly applicable in an urban or industrial vacuum cleaner into which the waste is sucked up and then collected in a container. The appliance comprises a flexible tube, the proximal end of which receives the waste and the distal end of which is held by a ring which is pivotable such that the ring can be positioned in one of several pre-defined positions. This variable positioning allows the waste to be deposited in different containers or compartments, according to the characteristics thereof. The appliance can be controlled manually or automatically on the basis of electronic or optical sensors.

A debris collection system utilizing a vacuum to collect debris in a container. The system includes a bottom-mounted motor and an airflow pathway containing the vacuum generated by the motor for collecting the debris. A portion of the airflow pathway passes through a top into the container for depositing the debris and another portion of the airflow pathway after depositing the debris then passes to the exterior of the container to the motor.

A material collection system is provided. The system can include a vacuum generator having a fan to develop an airflow and draw material into a conduit. The system can also include a transmission, a power source to selectively power at least one of the vacuum generator and the transmission, a variable power divider to divide a power output from the power source to the transmission and the vacuum generator, and a control system to control the variable power divider in a first mode and a second mode.

A fan with airfoil blades is provided for a regenerative air vacuum street sweeper. The blades are formed using cut and pressed upper and lower panels which are welded at a forward edge to a rod to form the airfoil leading edge and welded at the rear edges to form the airfoil trailing edge. Pins extend laterally outwardly from the rod for mounting each blade in corresponding holes in the front and rear plates of the fan housing. The side edges of the blade are welded to the plates at a 9-11? angle of attack. The airfoil blades allow for reduced size, horse power, noise, and manufacturing and shipping costs.

The present disclosure provides a material collection system. The material collection system includes a conduit, a vacuum generator coupled to the conduit, an engine powering the vacuum generator, and a container mounted to a chassis of a vehicle. The vacuum generator generates airflow for drawing material into a material inlet of the conduit. The container receives collected material from the conduit. The conduit, vacuum generator, the engine, and the container are supported on a hook-lift frame.

A hydraulic implement, which may be configured for attachment to a hydraulic system having a pressure line and a return line, may include a motor, an anti-cavitation valve, and an adjustable flow control valve. The motor may be operably connected between the pressure line and the return line and to rotate a shaft when hydraulic fluid flows from the pressure line through the motor to the return line. The anti-cavitation valve may be connected in parallel across the motor between the pressure line and the return line. The adjustable flow control valve may be connected in parallel across the motor between the pressure line and the return line. A method may include causing fluid to flow from the pressure line through an open adjustable flow control valve to the return line; and at least partially closing the valve to divert at least some fluid flow through the motor.

A vacuuming apparatus for collecting and disposing of sharps waste is disclosed. The sharps waste may include a used hypodermic needle. The vacuuming apparatus includes a passageway including a sidewall defining an interior chamber. The passageway includes an open suction end and an open nozzle end dimensioned to receive the sharps waste. The vacuuming apparatus includes a discharge port located at the suction end and in gaseous communication with a container, such as a used sharps container. The vacuuming apparatus includes a fan, that when operated, is configured to move air from the open nozzle end to the suction end and into the container such that the sharps waste may be moved in an airstream from a surface proximate to the open nozzle end into the container.