A collection and sifting device provides a flexibly resilient truncated funnel shaped body having a top circumferential edge extending around an open top portion, and a spaced apart bottom circumferential edge extending about a diametrically smaller closed bottom portion with a sidewall extending between the top circumferential edge and the bottom circumferential edge. A plurality of spacedly arrayed through holes are defined in the bottom portion and in the sidewall proximate the bottom portion. Each spacedly arrayed through hole has a diameter smaller than a diameter of a U.S. dime. A bottom cap is releasably securable to the body to optionally obstruct the plurality of through holes.

A cleaner for collecting dust is provided. The cleaner includes a suction head, a dust collector having a first end mounted on the suction head and including a first dust collecting chamber, an extension member slidably mounted on the dust collector at the other end opposite to the first end of the dust collector, and a first dirt removing member disposed at one end of the extension member and having elasticity.

A suction accessory device is provided, for the connection with a suction apparatus or vacuum cleaner, for the collection of waste in places of difficult access and/or in delicate objects. The suction accessory device comprises a flexible and lightweight hose. At one end, the hose includes a reducing coupling adapter terminal for connecting to a vacuum cleaner or suction device. At the opposite end, the hose includes a nozzle connection terminal that is coupled to a first end of a flexible or rigid, handle or brush tube. At a second end of the brush tube, the brush tube includes a head connection terminal which connects to interchangeable suction heads or nozzles.

A waste collection device including a compartment for receiving pet waste or other waste. The device is attached to the end of a leaf blower, hand vacuum, or other device which provides suction. Accessories may be included which allow universal mounting to most or all types of vacuums and leaf blowers. A removable filter bag may be included for cleaner removal of waste.

A suction accessory device is provided, for the connection with a suction apparatus or vacuum cleaner, for the collection of waste in places of difficult access and/or in delicate objects. The suction accessory device comprises a flexible and lightweight hose. At one end, the hose includes a reducing coupling adapter terminal for connecting to a vacuum cleaner or suction device. At the opposite end, the hose includes a nozzle connection terminal that is coupled to a first end of a flexible or rigid, handle or brush tube. At a second end of the brush tube, the brush tube includes a head connection terminal which connects to interchangeable suction heads or nozzles.

A system for safely capturing dust is disclosed. The system includes a dust containment system including a filter member within the containment unit. The dust containment unit is selectively attachable to a vacuum base whereby the dust containment unit with filter member therein can be selectively disconnected from the vacuum base, sealed, and disposed of, and a new dust containment unit can then be attached to the vacuum base.

A vacuum collection vehicle may include a chassis, a vacuum container supported by the chassis, a vacuum source separated from the vacuum container by an intermediate wall and a filter. The vacuum source is in pneumatic connection with the filter through the intermediate wall. A plurality of discharge conduits extend through the intermediate wall, extend over and above the filter, along the roof of the vacuum container. The plurality of discharge conduits have a plurality of respective outlets at different locations within the interior of the vacuum container for discharging collected material into different collection receptacles. The filter is sandwiched between the intermediate wall and the plurality of discharge conduits.

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.

A vacuum collection vehicle may include a chassis, a vacuum container supported by the chassis, a vacuum source in pneumatic connection with an interior of the vacuum container. A plurality of discharge conduits have a plurality of respective outlets at different locations within the interior of the vacuum container for discharging collected material into different collection receptacles. Inner collection receptacle supports support transmissive flexible and collapsible inner collection receptacles below the outlets. Outer collection receptacle supports support non-transmissive flexible and collapsible outer collection receptacles about and spaced from the transmissive flexible and collapsible inner collection receptacles.

A vacuum collection vehicle may include a chassis, a vacuum container, a filter unit, a first discharge conduit and a second discharge conduit. The filter unit may include a filter housing that supports a filter independent of opposing interior walls. The vehicle may include a storage container supported by the chassis and containing a vacuum source or hose reel. The vehicle may include inner and outer collection receptacle supports for supporting collection receptacles within the vacuum container.