A cleaning vehicle comprises a rolling chassis and a primary power source (13) in the form of a combustion engine which is able and configured to drive the vehicle. A suction installation (30) is provided which has an underpressure chamber (20) and a pump device (31,32,33) coupled thereto. The pump device comprises a primary pump unit (31,32) which draws its input power from the primary power source (13). In addition, the pump device comprises a secondary pump unit (33) which is optionally driven directly by a secondary power source in the form of an electric motor. The secondary power source (33) is supplied independently of the primary power source (13) by an electrical power supply.

The present invention relates to a road sweeping apparatus with a disposable bag mounted, and more particularly, to a road sweeping apparatus driving at a low speed corresponding to that of walking of a worker to more conveniently collect all kinds of wastes scattered on a road in an automatic or manual manner, in which a bag into which the collected wastes are put is installed inside a loading unit and simultaneously the bag is easily slidably withdrawn toward one side of the loading unit to easily collect the bag. In addition, fuel consumption is reduced by a motor-driven manner through a battery and simultaneously exhaust gas including carbon is not generated to be quite eco-friendly.

Provided is a portable power working machine in which suction of clothing to a safety guard can be reliably prevented and the amount of a portion protruding laterally from one side surface portion of a fan case can be reduced so as to enable a required air blowing performance to be obtained without causing an increase in size or weight or deterioration of the operability thereof. A suction port for inhaling air is provided on one side surface portion of a fan case of an air blower, and a safety guard is provided in the suction port. Further, the one side surface portion of the fan case has attached thereto a block prevention guard that has a top surface portion with a top surface opening facing the suction port, three leg portions for allowing the top surface opening to face the suction port with a predetermined distance therebetween, and a lattice provided in the top surface opening. Furthermore, the average opening area of apertures of the lattice in the top surface opening of the block prevention guard is larger than that of the apertures of the lattice of the safety guard.

A backpack type blowing apparatus includes an intake pipe that connects an air cleaner fixed to a fan case of an air blower to a carburetor that supplies an evaporated fuel to an engine body, and a top cover fixed to the fan case to cover at least the intake pipe by interposing the intake pipe between the top cover and the fan case. The top cover has a plurality of cover fixing portions fixed to the fan case. An outer circumferential-side fixed portion positioned on an outer circumferential side of the intake pipe in the fan case is included in the plurality of cover fixing portions.

A self-propelled field paint removal and extraction machine for removing paint from artificial turf athletic fields. The machine includes a self propelled, zero-turn rolling chassis including a frame defining a longitudinal axis of the machine; a brush assembly supported by the frame rearward of first and second front wheel caster assemblies and including a first outer brush rotating about a first brush axis of rotation and a second other brush rotating about a second brush axis, the brush assembly movable between a retracted position and a ground-contacting position; and a vacuum assembly supported by the frame rearward of the brush assembly and including a ground-contacting vacuum pad having a plurality of suction ports, the vacuum pad extending parallel to a lateral axis of the machine; and wherein the first and second brushes, in the retracted position of the brush assembly, are within a front footprint of the rolling chassis.

An auxiliary waste removal system for a surface maintenance machine, having a vacuum wand for removing waste from the floor surface, a reusable bagless waste collection container removably coupled to the vacuum wand, and a vacuum source fluidly coupled to the bagless waste collection container, the vacuum source generating a vacuum flow from an inlet of the vacuum wand to a vacuum outlet, the vacuum outlet being positioned downstream of the bagless waste collection container and the vacuum source such that the waste suctioned from the floor surface by the vacuum wand travels along the vacuum flow path and is directly received in the bagless waste collection container.

A pick-up head for a street sweeper having easy-to-change curtains. The pick-up head having a body; an air pressure chamber defined by the body, the air pressure chamber including an air blower chamber and air suction chamber, and corresponding air blower orifice and air suction orifice in the body; an elongated opening in the body for receipt of at least one curtain, the at least one curtain made of a durable material, the at least one curtain having an upper spine configured to reside in the elongated opening; and a pair of guide rails extending above and along opposite edges of the elongated opening, the guide rails configured to slidably receive a retention member positioned to retain the at least one curtain within the elongated opening. An expansion chamber and slotted shoe plate further enhances the operation of the pick-up head.

The object of the invention is a filtering device that can be coupled to a suction turbine (30) of the type used to suction pet faeces. Another object of the invention is the vacuum incorporated in said filtering device. The filtering device comprises an outer body (10) and a cartridge (20) that are partially disposed in the interior of the outer body (10) comprising an open front end (26) for suctioning the faeces (40) and a closed rear end (27), at least one opening (21) disposed on the surface (28) for the passage of the air flow (50) from the interior of the cartridge (20) to the interior of the outer body (10) and a filtering material (22).

An integrated tank has a debris-storage chamber, a water-storage chamber, and a muffler system. The muffler system is disposed proximate the water-storage chamber. The muffler system includes a bypass muffler and a discharge muffler.

An oscillating or pulsing fluid stream, or flow, is produced from a flow of pressurized air by fluidic apparatus in a device configured for use in surface cleaning, sweeping, lawn care applications, and the like. A converging nozzle assembly defining a tapered internal lumen having a smooth narrowing profile is configured to generate at a power nozzle a high velocity stream with minimal pressure drop. Downstream of the power nozzle, first and second control ports are in fluid communication with the high velocity stream and with each other via an inertance loop having a lumen of selected cross sectional area and length. The varying air flow is directed through an outlet chamber shaped to produce an oscillating or a pulsating flow.