Patent ID: 6421875
Filing Date: 2002-07-23
Classification: A47L

Abstract:
A vacuum cleaner floor tool for use with a vacuum means which comprises:an elongated, generally rectangular vacuum chamber comprising: a front side, with a top edge and a bottom portion having a generally flattened floor contacting bottom edge, in which said bottom portion of said front side defines a plurality of front air bypass channels for restricting a flow of air into said vacuum chamber, wherein said channels are generally perpendicular to said front side; a rear side, with a top edge and a bottom portion having a generally flattened floor contacting bottom edge, mounted in a juxtaposed spaced apart relationship with said front side, in which said bottom portion of said rear side defines a plurality of rear air bypass channels for restricting a flow of air into said vacuum chamber wherein said rear air bypass channels are offset in alignment from said front air bypass channels, wherein said channels are generally perpendicular to said rear side; a right side, with a top edge and a bottom portion having a generally flattened floor contacting bottom edge, and attached to said front side and said rear side; a left side, with a top edge and a bottom portion having a generally flattened floor contacting bottom edge, mounted in a juxtaposed spaced apart relationship with said right side, and attached to said front side and said rear side; and a top cover portion which attaches to said top edges of said sides, which defines an orifice for connection to said vacuum means, and which with said sides forms said vacuum chamber; wherein said vacuum means creates a negative pressure in said vacuum chamber, air passes into said vacuum chamber through said air bypass channels, and said air bypass channels are arranged to form multiple vortices in said vacuum chamber by said offset alignment of said front and rear air bypass channels.