Abstract: A vacuum cleaner nozzle having a housing, a bleed valve, and a support. The housing has an inlet, an outlet, a suction passage, a bypass opening, and a bypass passage connecting the bypass opening to the outlet. The valve is movable between a closed position in which the valve blocks the bypass passage, and an open position in which the valve does not block the bypass passage. The support has a lever arm. The support moves between a first position in which the lever arm allows the bleed valve assembly to remain in the closed position and the support holds the inlet opening at a first distance from a surface, and a second position in which the lever arm holds the valve in the open position, and the support holds the inlet opening a second distance from the surface, the second distance being greater than the first distance.

Abstract: A vacuum cleaner nozzle assembly having an inlet opening, a height adjustment mechanism configured to adjust a vertical position of the inlet opening relative to a surface to be cleaned, a suction passage fluidly connected to the inlet opening, a bypass opening fluidly connected to the suction passage, and a bleed valve. The bleed valve has a closed position in which the bleed valve blocks the bypass opening, and an open position in which the bleed valve does not block the bypass opening to allow a flow of air through the bypass opening and into the suction passage. The bleed valve is configured to move from the closed position to the open position in response to an adjustment of the height adjustment mechanism.

Abstract: A vacuum cleaner nozzle having a housing, a bleed valve, and a support. The housing has an inlet, an outlet, a suction passage, a bypass opening, and a bypass passage connecting the bypass opening to the outlet. The valve is movable between a closed position in which the valve blocks the bypass passage, and an open position in which the valve does not block the bypass passage. The support has a lever arm. The support moves between a first position in which the lever arm allows the bleed valve assembly to remain in the closed position and the support holds the inlet opening at a first distance from a surface, and a second position in which the lever arm holds the valve in the open position, and the support holds the inlet opening a second distance from the surface, the second distance being greater than the first distance.

Abstract: A vacuum cleaner nozzle assembly having an inlet opening, a height adjustment mechanism configured to adjust a vertical position of the inlet opening relative to a surface to be cleaned, a suction passage fluidly connected to the inlet opening, a bypass opening fluidly connected to the suction passage, and a bleed valve. The bleed valve has a closed position in which the bleed valve blocks the bypass opening, and an open position in which the bleed valve does not block the bypass opening to allow a flow of air through the bypass opening and into the suction passage. The bleed valve is configured to move from the closed position to the open position in response to an adjustment of the height adjustment mechanism.