Vacuum cleaner
First Claim
Patent Images
1. A vacuum cleaner, comprising:
- a working air path comprising a dirty air inlet and a clean air outlet;
a motor/fan assembly in fluid communication with the dirty air inlet for generating a working airstream through the working air path; and
a debris removal assembly for removing and collecting debris from the working airstream for later disposal, the debris removal assembly having a central axis and comprising;
a debris removal assembly body having an air inlet in fluid communication with the dirt air inlet and an air outlet fluidly upstream of the clean air outlet; and
a multi-layer filtration stage provided within the debris removal assembly body, and comprising;
a louvered exhaust grill comprising a generally cylindrical body having a plurality of louvers extending longitudinally relative to the central axis between upper and lower ends of the generally cylindrical body and forming air flow openings therebetween;
a mesh screen disposed radially outwardly about a radial perimeter of the louvered exhaust grill; and
a multi-layer filter including a plurality of layers of filtration material, the multi-layer filter mounted radially interior within the louvered exhaust grill, fluidly downstream of the air flow openings.
3 Assignments
0 Petitions
Accused Products
Abstract
A vacuum cleaner includes an air treatment or debris removable assembly with a multi-layer filtration stage. The multi-layer filtration stage can include an outer mesh screen, a louvered exhaust grill, and a multi-layer filter. Optionally, an inner perforated exhaust grill is also provided. The debris removable assembly can further include a cyclonic filtration stage.
-
Citations
21 Claims
-
1. A vacuum cleaner, comprising:
-
a working air path comprising a dirty air inlet and a clean air outlet; a motor/fan assembly in fluid communication with the dirty air inlet for generating a working airstream through the working air path; and a debris removal assembly for removing and collecting debris from the working airstream for later disposal, the debris removal assembly having a central axis and comprising; a debris removal assembly body having an air inlet in fluid communication with the dirt air inlet and an air outlet fluidly upstream of the clean air outlet; and a multi-layer filtration stage provided within the debris removal assembly body, and comprising; a louvered exhaust grill comprising a generally cylindrical body having a plurality of louvers extending longitudinally relative to the central axis between upper and lower ends of the generally cylindrical body and forming air flow openings therebetween; a mesh screen disposed radially outwardly about a radial perimeter of the louvered exhaust grill; and a multi-layer filter including a plurality of layers of filtration material, the multi-layer filter mounted radially interior within the louvered exhaust grill, fluidly downstream of the air flow openings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A vacuum cleaner, comprising:
-
a working air path comprising a dirty air inlet and a clean air outlet; a motor/fan assembly in fluid communication with the dirty air inlet for generating a working airstream through the working air path; and a debris removal assembly for removing and collecting debris from the working airstream for later disposal, the debris removal assembly having a central axis and comprising; a debris removal assembly body having an air inlet in fluid communication with the dirt air inlet and an air outlet fluidly upstream of the clean air outlet; and a multi-layer filtration stage having a series of nested components provided within the debris removal assembly body, and comprising a multi-layer filter located radially within a louvered exhaust grill that is located within a mesh screen, the louvered exhaust grill comprising a generally cylindrical body having a plurality of louvers extending longitudinally relative to the central axis between upper and lower ends of the generally cylindrical body and forming air flow openings therebetween, the mesh screen disposed radially outwardly from the plurality of louvers relative to the central axis and about an entire periphery of the louvered exhaust grill and the multi-layer filter mounted within an interior formed by the plurality of louvers, fluidly downstream of the air flow openings, and comprising multiple layers of filtration material.
-
Specification