Abstract: A rotating cleaning element configured to be inserted in a cleaning head compartment of a robotic vacuum, the rotating cleaning element including: a drive end including a drive protrusion configured to engage a drive mechanism of the cleaning head compartment; a bearing end and a shroud configured to surround at least a portion of the bearing end to lessen an amount of hair and similar matter that reaches the bearing; and a central member extending between the bearing end and the drive end.

Abstract: A vacuum cleaner comprising: a secured tube secured horizontally to the front surface of the main body of the cleaner and sucks in dust from the outside due to a motor in the main body; a pair of securing members which secure two ends of the secured tube to the main body and convey the sucked-in dust to a filter in the main body; and a suction tube which is rotatably provided on the outer circumferential surface of the secured tube and rolls along the surface to be cleaned, and in the cylindrical surface of which are formed dust-suction holes for sucking in dust. Because the suction tube in which the plurality of dust-suction holes are formed is rotatably provided on the outer circumferential surface of the secured tube, the suction tube continuously turns while cleaning bedding by pushing or pulling the main body, and thus the bedding is not sucked into the secured tube.

Abstract: A vacuum cleaner nozzle with a nozzle housing, an outlet opening on the housing, a suction opening on a side of the housing facing a surface to be cleaned, at least one roller connected to the housing to support the vacuum cleaner nozzle, and a sealing member on the nozzle. The suction opening communicates with the outlet opening to draw debris through the suction opening when a suction source is connected to the outlet. The roller has an essentially air tight material and rotates such that the roller surface moves towards the suction opening to sweep debris towards the suction opening. The sealing member has a sealing portion in close apposition to at least part of the roller. The sealing portion partly surrounds and substantially restricts airflow across a sealed portion of the roller located essentially opposite the surface being cleaned. The roller also functions as an air barrier.

Abstract: A vacuum cleaning head includes a housing having an agitator in the form of a brush bar rotatably arranged in a chamber having an air inlet and an air outlet and also includes an air turbine for driving the brush bar is provided. The air turbine has its own air inlet for admitting clean air to drive the turbine. A restricting member is arranged in the outlet of the chamber so as to restrict the cross-section of the outlet when the head is pressed against a surface to be cleaned and to restrict the flow of air from the brush bar chamber. The restricting member is designed to distribute incoming air between the main inlet and the turbine inlet in a satisfactory ratio. Thus, more air flows through the turbine, enabling it to drive the brush bar at high rotational speed.

Abstract: A multipurpose tool for cleaning machines, having a body that is interchangeably associable with a cleaning machine provided with an electric motor; the body is movable on wheels and a front advancement part thereof is arranged transversely to a main direction of motion so as to form a housing that is open downward and accommodates a bristled roller that is moved, by virtue of transmission elements, by an electric motor accommodated within the body; the body is articulated to a coupling element that is suitable to provide a detachable connection to the machine with a dirt suction duct. The tool further includes a pair of interchangeable covers that are selectively detachably associable below the housing at an open region where the roller is located, each of the covers having at least one suction slot and elements for closing the region to the rear of the roller between the housing and the floor.

Abstract: A multipurpose tool for cleaning machines, comprising a body that is interchangeably associable with a cleaning machine provided with an electric motor; the body is movable on wheels and a front advancement part thereof is arranged transversely to a main direction of motion so as to form a housing that is open downward and accommodates a bristled roller that is moved, by virtue of transmission elements, by an electric motor accommodated within the body; the body is articulated to a coupling element that is suitable to provide a detachable connection to the machine with a dirt suction duct. The tool further comprises a cover that is detachably associable below the housing at an open region where the roller is located, the cover having at least one suction slot and elements for closing the region to the rear of the roller between the housing and the floor.

Abstract: A vacuum cleaner is provided with a nozzle having front and rear rollers that extend for, essentially, the width of the nozzle from side to side. Ideally, these rollers are mounted at least partly within the vacuumized envelope formed by the nozzle.

Abstract: A floor cleaner that includes a rotatable brush having an elongate dowel is provided with an anti-cord swallowing system formed by a plurality of grooves formed about the periphery of the dowel and equally spaced along the length of the dowel. The anti-cord swallowing system also includes a plurality of equally spaced ribs extending from an under surface of a power head housing of the cleaner, each rib being aligned with and extending partially into one of the grooves. The clearance between each rib and its respective groove is such that free rotation of the brush is permitted while the possibility of even small diameter power cords being wrapped around the brush is minimized.

Abstract: A safety guard device for a power tool discharge chute which includes a shaft attached to the chute and extending across the opening of the chute. There are a plurality of elongate spaced-apart blade elements mounted to the shaft for pivoting within the chute and one or more springs or other resilient elements are provided for biasing the blade elements into a closed condition within the chute to prevent operator access through the opening of the chute and permitting the blades to pivot into an open condition so that bulky material may be discharged through the chute.

Abstract: The present invention provides surface maintenance equipment, such as for sweeping lawns, which includes mechanism for preventing clogging of ducts leading to the fan and/or the hopper.

Abstract: A bottom plate for a carpet power cleaner has a body part, detents provided on the body part and detachably engageable in a housing of a carpet power cleaner. The detents may be of one piece with the body part. The detents may extend through cutouts provided in a lower wall of the housing so as to engage with the latter. The detents may have bent end sections which are engageable with detent edges located downstream of the cutouts of the housing. The body part may have a rear edge provided with inwardly extending flanging.

Abstract: A vacuum cleaner nozzle tool that is connected to a source of negative pressure and which functions to clean deep pile carpet or shag rugs in an efficient manner and which at the same time raises the pile of the rug or carpet in order to improve the appearance thereof. To achieve this objective the nozzle is provided with slide means of a particular configuration.