Abstract: A cleaner head that includes an agitator in the form of a brush bar, the brush bar including a sealing material extending over the circumferential and axial extent of the brush bar, the sealing material including a tufted material, and a housing defining a chamber which at least partially surrounds the brush bar, a dirty air inlet in a lower part of the chamber and a front opening that exposes the brush bar at the front of the housing, the brush bar being supported for rotation with respect to the housing and arranged in the chamber, wherein a partition is arranged within the chamber between the brush bar and an outlet of the chamber, the partition extends transversely and divides the chamber into an agitating region and a settling chamber, and the partition includes a wall that extends tangentially to the brush bar and is inclined rearwardly.

Abstract: A system, comprising one or more processors; and memory storing instructions executable by the one or more processors to causes the system to associate together streams of data from at least three devices separated by a network, the at least three devices comprising a first device of a first user, a second device of the first user, and a third device of a second user, wherein association of the streams of data together enables the first device to receive data from the third device and the third device to receive data from the first device and the second device, wherein the data from the first device and the second device indicate playing of a first musical instrument by the first user and the data from the third device indicates playing of a second musical instrument by the second user, update a first user interface of the first device according to an event that occurred on the third device, and update a second user interface of the third device according to an event that occurred on the third device.

Abstract: A cleaner head for a vacuum cleaner including an agitator in the form of a brush bar, the brush bar including a plurality of radially extending bristles and a sealing material disposed between the bristles. The sealing material extends over substantially the entire circumferential and axial extent of the regions of the brush bar between the bristles. The cleaner head further includes a housing defining a chamber which at least partially surrounds the brush bar, a dirty air inlet in a lower part of the chamber and a front opening that exposes the brush bar at the front of the housing. The brush bar is supported for rotation with respect to the housing and arranged in the chamber such that the brush bar seals against the housing thereby restricting flow of air through the front opening.

Abstract: A cleaner head that includes an agitator in the form of a brush bar, the brush bar including a sealing material extending over the circumferential and axial extent of the brush bar, the sealing material including a tufted material, and a housing defining a chamber which at least partially surrounds the brush bar, a dirty air inlet in a lower part of the chamber and a front opening that exposes the brush bar at the front of the housing, the brush bar being supported for rotation with respect to the housing and arranged in the chamber, wherein a partition is arranged within the chamber between the brush bar and an outlet of the chamber, the partition extends transversely and divides the chamber into an agitating region and a settling chamber, and the partition includes a wall that extends tangentially to the brush bar and is inclined rearwardly.

Abstract: A cleaner head for a vacuum cleaner including an agitator in the form of a brush bar, the brush bar including a plurality of radially extending bristles and a sealing material disposed between the bristles. The sealing material extends over substantially the entire circumferential and axial extent of the regions of the brush bar between the bristles. The cleaner head further includes a housing defining a chamber which at least partially surrounds the brush bar, a dirty air inlet in a lower part of the chamber and a front opening that exposes the brush bar at the front of the housing. The brush bar is supported for rotation with respect to the housing and arranged in the chamber such that the brush bar seals against the housing thereby restricting flow of air through the front opening.

Abstract: A piano training device is described herein. The piano training device comprising a plurality of keys which may be illuminated by a light source associated with each key. The light source associated with each key is oriented such that the light source transmits light toward the front surface of the key. The key is further manufactured so that the light transmitted toward the front surface of the key is redirected to the top surface of the key.

Abstract: A cleaner head for a vacuum cleaner including an agitator in the form of a brush bar, the brush bar including a plurality of radially extending bristles and a sealing material disposed between the bristles. The sealing material extends over substantially the entire circumferential and axial extent of the regions of the brush bar between the bristles. The cleaner head further includes a housing defining a chamber which at least partially surrounds the brush bar, a dirty air inlet in a lower part of the chamber and a front opening that exposes the brush bar at the front of the housing. The brush bar is supported for rotation with respect to the housing and arranged in the chamber such that the brush bar seals against the housing thereby restricting flow of air through the front opening.

Abstract: A cleaner head for a vacuum cleaner, comprising an agitator; and a housing defining a chamber which at least partially surrounds the agitator, a dirty air inlet in a lower part of the chamber and a dirty air outlet, wherein a partition is disposed between the agitator and the dirty air outlet such that the partition and the housing define a settling region of the chamber adjacent the dirty air outlet, the partition is provided with a first debris opening and a second debris opening disposed above the first debris opening such that, in use, debris swept past the first debris opening by the agitator is swept towards the second debris opening.

Abstract: A piano training device is described herein. The piano training device comprising a plurality of keys which may be illuminated by a light source associated with each key. The light source associated with each key is oriented such that the light source transmits light toward the front surface of the key. The key is further manufactured so that the light transmitted toward the front surface of the key is redirected to the top surface of the key.

Abstract: A cleaner head for a vacuum cleaner including an agitator in the form of a brush bar, the brush bar including a plurality of radially extending bristles and a sealing material disposed between the bristles. The sealing material extends over substantially the entire circumferential and axial extent of the regions of the brush bar between the bristles. The cleaner head further includes a housing defining a chamber which at least partially surrounds the brush bar, a dirty air inlet in a lower part of the chamber and a front opening that exposes the brush bar at the front of the housing. The brush bar is supported for rotation with respect to the housing and arranged in the chamber such that the brush bar seals against the housing thereby restricting flow of air through the front opening.

Abstract: A piano training device is described herein. The piano training device comprising a plurality of keys which may be illuminated by a light source associated with each key. The light source associated with each key is oriented such that the light source transmits light toward the front surface of the key. The key is further manufactured so that the light transmitted toward the front surface of the key is redirected to the top surface of the key.

Abstract: A piano training device is described herein. The piano training device comprising a plurality of keys which may be illuminated by a light source associated with each key. The light source associated with each key is oriented such that the light source transmits light toward the front surface of the key. The key is further manufactured so that the light transmitted toward the front surface of the key is redirected to the top surface of the key.

Abstract: A cleaner head for a vacuum cleaner, comprising an agitator; and a housing defining a chamber which at least partially surrounds the agitator, a dirty air inlet in a lower part of the chamber and a dirty air outlet, wherein a partition is disposed between the agitator and the dirty air outlet such that the partition and the housing define a settling region of the chamber adjacent the dirty air outlet, the partition is provided with a first debris opening and a second debris opening disposed above the first debris opening such that, in use, debris swept past the first debris opening by the agitator is swept towards the second debris opening.

Abstract: A floor tool for a vacuum cleaning appliance, the floor tool comprising a main body including a suction nozzle comprising a surface engaging skirt that depends downwardly to define an outer periphery of a suction chamber having a suction chamber outlet, the surface engaging skirt including a leading edge, a trailing edge, and side edges extending between the leading edge and the trailing edge, and wherein the trailing edge depends downwardly from the suction nozzle by a first distance and the leading edge depends downwardly from the suction nozzle by a second distance that is less than the first distance so as to define a predetermined gap with a floor surface, in use.

Abstract: A magnetic assembly is constructed comprising a first core portion, a second core portion, and a winding assembly. The first and second core portions each include a base portion and a plurality of projections extending from the base portion. The winding includes a plurality of stacked layers having conductive paths applied to their surfaces. The winding is constructed with a bore, wherein each conductive path encircles the bore. A number of the stacked conductive layers form a primary winding, and a number of the stacked conductive layers form a secondary winding. The winding is disposed over the first core portion in a manner so that a projection engages the opening of the winding to provide magnetic coupling of winding and core. The second core portion is disposed over the first core portion to form a closed magnetic circuit through and around the winding.

Abstract: There is provided a power system for a spacecraft that includes a plurality of electrical loads. The power system comprises N segmented solar array panels. Each of the N segmented solar array panels comprises Y solar array segments. The power system also comprises a plurality of power source blocks, each of which includes a respective one of the Y solar array segments of a respective one of the N segmented solar array panels. The Y solar array segments receive solar energy and provide electrical energy as outputs of respective ones of the power source blocks. The power system further comprises at least one switch which is controllable for coupling electrical energy output by individual ones of the power source blocks to selected individual ones of the electrical loads.