Vacuum filter
AssigneeAmway Corporation
InventorRobert A. Yonkers
Life of this patent
Estimating the term…
Abstract
A final filter is provided for cleaning the cooling air drawn into the motor driven pump of a vacuum cleaner featuring a centrifugal separator. The final filter comprises a large area foam block filter and a sheet filter element received in a filter tray which is slideably received in a filter plenum disposed between the centrifugal separator and the motor/pump combination of the vacuum cleaner. The filter tray is supported horizontally within the filter plenum to define an inlet manifold and an outlet manifold having optimum flow characteristics and a detent is provided for snap locking the slideable filter tray within the filter plenum.
Claims13
In a vacuum cleaner for cleaning lint and debris from environmental surfaces, the combination comprising:
- a centrifugal separator;
- a pump for drawing air, lint and debris through said separator;
- a motor for driving said pump, said pump supplying cooling air for the motor;
- a filter plenum disposed between said separator and said pump for receiving air from said separator and delivering air to said pump;
- and
- a means for filtering disposed in said filter plenum for removing lint and small debris from the air drawn by said pump;
- and
- wherein said means for filtering comprises a filter tray, said filter tray having an elongate shape defining a major dimension of said filter tray which extends in a substantially horizontal plane within said plenum;
- and
- wherein said filter tray is provided with an elongate shape having a first end and a second end disposed on opposite sides of said horizontal plane;
- and an air inlet is provided for said inlet manifold, said air inlet being disposed adjacent said first end of said filter tray;
- and an air outlet is provided for said outlet manifold, said air outlet being disposed adjacent said second end of said filter tray.
Dependencies are inferred from the claim text.