A vacuum installation comprises a vacuum chamber having an inlet for aspirating a quantity of liquid or particulate material. A cyclone separation unit comprising a plurality of cyclones, communicating in parallel with the interior of the vacuum chamber is connected to a vacuum pump to draw air from the vacuum chamber through the cyclones and induce a separating vortex flow within the cyclones. A controller is arranged to control the vacuum pump to provide a chosen flow rate and to selectively deactivate one or more of the cyclones according to the chosen flow rate.

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 material collection vehicle may include a vehicle body and a mounting system including a turret sealingly coupled to a boom mounting joint. The mounting system may be used for mounting a telescopic boom assembly. The boom assembly may include a bearing seal to provide for sealed fluid communication through the boom assembly. The mounting system and boom assembly may form a sealed fluid flow path from the boom assembly to the vehicle body through the mounting system.

A vacuum installation includes a vacuum chamber having an inlet for aspirating a quantity of liquid or particulate material. A cyclone separation unit including a plurality of cyclones, communicating in parallel with the interior of the vacuum chamber is connected to a vacuum pump to draw air from the vacuum chamber through the cyclones and induce a separating vortex flow within the cyclones. A controller is arranged to control the vacuum pump to provide a chosen flow rate and to selectively deactivate one or more of the cyclones according to the chosen flow rate.

A metal work box includes a base having a horizontal planar member having an upper surface and a lower surface. The metal work box also includes a plurality of side walls secured to and extending upwardly from the base. The plurality of side walls include a front first side wall formed along a front first edge of the base, a back second side wall formed along a rear second edge of the base, a left third side wall formed along a left side third edge of the base, and right fourth side wall formed along a right side fourth edge of the base. A door is formed along the front first side wall. The door includes a door panel having a free edge and a hinged edge, the hinged edge being pivotally secured to a front hinge side wall portion of the front first side wall so as to enable easy access to contents. The front first side wall also includes a latch extending between a front latch side wall portion of the front first side wall and the free edge of the door panel to allow for selective latching of the door panel to the front latch side wall portion to keep the door securely closed.

A pet waste vacuuming collection and disposal apparatus for collecting and disposing of animal feces includes a handle attached to a mulching mechanism that is capable of shredding animal feces into a plurality of crumb particles. The mulching mechanism includes a housing with an exhaust hole providing access to an interior space of the housing. A motor, vacuum blower, and mulching blade are mounted within the housing. A disposable bag may be removably attached to the exhaust hole. A tube extends from the housing opposite the handle. When the motor is activated, the vacuum blower suctions animal feces up through the tube, into the mulching blade, and out of the exhaust hole, where the shredded feces particles are collected in the disposable bag.

A mobile vehicle mounted dry filtration system to support a grinder system used for removal of markings, creating rumble strips, or the like. Blowers create a vacuum for drawing debris and dust from the grinder system into a debris bin. Large debris is removed from the vacuum draw and remains in the bin for later disposal. Small particles and dust are drawn into parallel positioned filter cyclones that have a cyclonic separation followed by flexible and inexpensive bag filters. The flexible filters are cleaned using vibrating diaphragms mounted on the top of the filter cyclones subject to a reverse air flow by the blowers using slide valves. A polishing tank containing water receives the exhaust from the filter cyclones for removal of airborne particles and sound suppression.

A debris collection hopper for road surface maintenance vehicles, such as street sweepers and road mark line removers separates and retains debris according to their sizes inside a hopper of the pneumatic conveyance system. The air stream flows through three divided compartmentsmain storage area for coarse or bulky debris, low pressure drop pre-separator for fine particles, and filter housing for extra fine dusts. Each compartment has a common open end closed by a single door. During discharge, opening the door empties all the compartments. The hopper effectively collects debris from the pneumatic conveyance system, reduce clogging in filters and increasing productivity, while still being compact and simple to operate.

A multifunctional construction site cleaning robot and a cleaning method using the same are provided. The robot includes a chassis part; a bottom rotatable function part, including a sweeper unit, an iron remover unit, a leaf remover unit and a cutter unit; a debris treatment part, including a compression unit, a debris container and a pulverizing unit; a container exchange part, including a movable gripper unit and openable containers, the openable containers being configured to contain sundries collected by the sweeper unit and the iron remover unit; a spray part, configured to prewet or dedust a construction site; and a water transfer part, including an extensible water discharging unit and an extensible water pumping unit, the extensible water discharging unit being configured to pump accumulated water, and the extensible water pumping unit being configured to pump accumulated water from a bottom of a pit to the ground.

A mobile snow processing and de-icing machine and method is disclosed. The device comprises a collecting unit featuring cylindrical and circular brushes to effectively scrape and remove snow from surfaces. Turbo-suction sweepers, driven by Turbo-suction motors adapted to clear the scraped off snow through a collecting tube. A de-icing unit employs a heated metal grid at an inlet of a de-icing tank, converting collected snow into slush. Connected to the collecting tube's output, the de-icing tank further mixes the slush with a prestored de-icing solution, preparing a diluted deicing solution. The device further provides a sprinkler unit linked to an outlet of the de-icing tank, allowing a controlled spraying of the diluted de-icing solution back onto surfaces. This comprehensive mobile solution ensures efficient snow removal and proactive prevention of snow formation.