Patent ID: 7386916
Filing Date: 2008-06-17
Classification: A47L

Abstract:
1. A vacuum cleaner comprising: a housing having at least one inlet for allowing intake of air and at least one outlet for allowing escape of air; a suction device arranged in the housing for causing air to flow from at least one said inlet to at least one said outlet; a first filter for preventing passage of particles larger than a first predetermined particle size in air flowing from at least one inlet to at least one outlet; a second filter for preventing passage of particles larger than a second predetermined size, smaller than said first predetermined size, in air flowing from said first filter to at least one said outlet; and an electrically operated vibrator for causing vibrations of said first filter or said second filter; wherein the vacuum cleaner has a working condition, in which said suction device causes air to flow from at least one said inlet to at least one said outlet, and a self-cleaning condition in which the vibrator causes vibrations of said first or second said filter; and wherein said housing is adapted to open when mounted to a cleaning receptacle for supporting said vacuum cleaner in said self-cleaning condition.