Suction nozzle for a vacuum cleaner, comprising a dust flow display device
First Claim
1. A suction nozzle for a vacuum cleaner having at least one of a suction wand and a suction hose, the suction nozzle comprising:
- a nozzle part having a suction mouth;
a tubular connection part configured to connect to at least one of the suction wand and the suction hose;
a holding device having a receiving element and being disposed at the upper side of the connection part;
a dust sensor disposed in a dust-air stream inside an upward portion of the connection part, the dust sensor being insertable underneath a housing of the connection part through an opening formed on an upper side of the connection part so as to protrude into the dust-air stream near an upper wall area of the connection part;
an indicating device having indicating elements indicating a dust flow, the indicating elements being disposed in a receiving chamber formed at the upper side of the connection part; and
an electronic control device configured to analyze signals of the dust sensor and controlling the indicating device during operation;
wherein the dust sensor is a piezoelectric dust sensor disposed in the receiving element and protrudes at an angle into the dust-air stream and wherein the receiving element is insertable, together with the sensor, into an interior of the connection part through the opening.
1 Assignment
0 Petitions
Accused Products
Abstract
A suction nozzle for a vacuum cleaner that can be connected to a suction pipe and/or a suction tube of the vacuum cleaner includes a nozzle part that can be connected to the suction pipe or the suction tube by means of a tubular connection part. A dust sensor is arranged in the flow path of the vacuum cleaner, the signals thereof being evaluated by a battery-operated electronic control device that can be activated by a low-pressure switch. During operation, said control device controls a display device displaying the dust flow. The control device, the low-pressure switch, the display elements displaying the dust flow, and a battery compartment for receiving the batteries are arranged in a housing formed on the upper side of the tubular connection part. The dust sensor is arranged beneath the housing, inside the upper region of the connection part, in the dust air stream.
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Citations
12 Claims
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1. A suction nozzle for a vacuum cleaner having at least one of a suction wand and a suction hose, the suction nozzle comprising:
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a nozzle part having a suction mouth; a tubular connection part configured to connect to at least one of the suction wand and the suction hose; a holding device having a receiving element and being disposed at the upper side of the connection part; a dust sensor disposed in a dust-air stream inside an upward portion of the connection part, the dust sensor being insertable underneath a housing of the connection part through an opening formed on an upper side of the connection part so as to protrude into the dust-air stream near an upper wall area of the connection part; an indicating device having indicating elements indicating a dust flow, the indicating elements being disposed in a receiving chamber formed at the upper side of the connection part; and an electronic control device configured to analyze signals of the dust sensor and controlling the indicating device during operation; wherein the dust sensor is a piezoelectric dust sensor disposed in the receiving element and protrudes at an angle into the dust-air stream and wherein the receiving element is insertable, together with the sensor, into an interior of the connection part through the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A suction nozzle for a vacuum cleaner, comprising:
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a nozzle part having a suction mouth; a tubular connection part configured to connect to at least one of the suction wand and the suction hose; a dust sensor disposed in a dust-air stream inside an upward portion of the connection part, the dust sensor being insertable underneath a housing of the connection part through an opening formed on an upper side of the connection part so as to protrude into the dust-air stream near an upper wall area of the connection part; an indicating device having indicating elements indicating a dust flow, the indicating elements being disposed in a receiving chamber formed at the upper side of the connection part; and an electronic control device configured to analyze signals of the dust sensor and controlling the indicating device during operation; wherein the connection part includes a closable further opening in a lower wall opposite the dust sensor and allowing the dust sensor to be accessed from outside the connection part.
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12. A connection part for a suction nozzle of a vacuum cleaner, the connection part comprising:
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a first connecting portion disposed at a first side of the connection part and connectable to connector member of a suction nozzle; a second connecting portion disposed at a second opposite side of the connection part and connectable to at least one of a suction wand and a suction hose of the vacuum cleaner; a holding device having a receiving element and being disposed at the upper side of the connection part; a dust sensor disposed in a dust-air stream inside an upward portion of the connection part, the dust sensor being insertable underneath a housing of the connection part through an opening formed on an upper side of the connection part so as to protrude into the dust-air stream near an upper wall area of the connection part; and an indicating device having indicating elements indicating a dust flow, the indicating elements being disposed in a receiving chamber formed at the upper side of the connection part; wherein the dust sensor is a piezoelectric dust sensor disposed in the receiving element and protrudes at an angle into the dust-air stream and wherein the receiving element is insertable, together with the sensor, into an interior of the connection part through the opening.
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Specification