Arrangement for a vacuum cleaner

Details Arrangement for a vacuum cleaner Arrangement for a vacuum cleaner

A - Human Necessities

47

L

342/37, 15/53.2

A47L 9/28 (2006.01)

Patent

CA 2027552

ABSTRACT A vacuum cleaner has an electric motor (15) and a suction fan (17) connected to the motor. A control device (16) drives the motor in a speed range limited upwards by a rated voltage corresponding to a rated power level for the motor. Means (46, 39; 30, 31) are provided, after actuation of a manually operable means (19), to temporarily connect the motor to a voltage exceeding said rated voltage, resulting in operation at an increased power level during a predetermined time. The means (46, 39; 30, 31) for connecting of the increased voltage comprises a thermally-operated means (46, 30) which cooperates with the control device for the connection and disconnection, respectively, of the increased voltage, the predetermined time being determined by the heating time for the thermally-operated means.

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