Patent ID: 6516492
Filing Date: 2003-02-11
Classification: A47L

Abstract:
A central vacuum cleaning system comprising:a tube having a nozzle at an inlet of the tube for sucking air containing dust; a filter carrier connected with an outlet of the tube by an inlet of the filter carrier for filtering the sucked air, the filter carrier having a filter detachably provided in a housing of the filter carrier, and a switch member for actuating the motor; an intake hose connecting with an outlet of the filter carrier by an inlet of the intake hose for serving as a passage of the filtered air; an air intake box installed at a place to be cleaned and an outlet of the intake hose detachably connected with the air intake box; a machine unit having a motor for forcedly sucking air through the air intake box; a net in the filter carrier adjacent to the inlet of the intake hose; a plurality of grooves in the housing of the filter carrier where the filter is contacted; and a backer at the tube for supporting the tube when not in use.