Vacuum cleaner
First Claim
Patent Images
1. A vacuum cleaner comprising:
- a body having a suction nozzle;
a dirt separating and collecting system provided on the body comprising;
a housing defining a chamber with an air inlet and an air outlet;
an air-permeable filter material removably mounted within the chamber to separate and collect dirt from a working air stream passing from the air inlet to the air outlet, the filter material fluidly disposed between the air inlet and the air outlet such that the working air stream passes through the filter material after passing through the air inlet and before passing through the air outlet; and
a helical inlet guide disposed within the housing and directing the working air stream from the air inlet through the filter material along a helical pathway; and
a suction source fluidly connected to the suction nozzle and to the air inlet for establishing and maintaining a dirt-containing working airstream from the suction nozzle to the chamber;
wherein the housing comprises a cover over the helical inlet guide and wherein the cover is at least partially transparent to permit the helical inlet guide to be viewed from the exterior of the vacuum cleaner; and
wherein the air inlet is formed in the cover, separate from the helical inlet guide.
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Accused Products
Abstract
A vacuum cleaner includes a dirt separating and collecting system. The dirt separating and collecting system can include an air-permeable filter material, and a helical inlet guide. Dirt entering the helical inlet guide within a working airstream is visible to the user through an at least partially transparent housing.
73 Citations
20 Claims
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1. A vacuum cleaner comprising:
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a body having a suction nozzle; a dirt separating and collecting system provided on the body comprising; a housing defining a chamber with an air inlet and an air outlet; an air-permeable filter material removably mounted within the chamber to separate and collect dirt from a working air stream passing from the air inlet to the air outlet, the filter material fluidly disposed between the air inlet and the air outlet such that the working air stream passes through the filter material after passing through the air inlet and before passing through the air outlet; and a helical inlet guide disposed within the housing and directing the working air stream from the air inlet through the filter material along a helical pathway; and a suction source fluidly connected to the suction nozzle and to the air inlet for establishing and maintaining a dirt-containing working airstream from the suction nozzle to the chamber; wherein the housing comprises a cover over the helical inlet guide and wherein the cover is at least partially transparent to permit the helical inlet guide to be viewed from the exterior of the vacuum cleaner; and wherein the air inlet is formed in the cover, separate from the helical inlet guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification