Dust bag arrangement and filling indicator for floor care apparatus
First Claim
1. A floor care apparatus, comprising:
- a housing having a wall;
a dust bag within the housing and angled relative to the wall; and
a plurality of pressure sensors between the wall and the dust bag where the dust bag is angled relative to the wall so that, during use as the dust bag fills, the dust bag first contacts one of the pressure sensors and then sequentially contacts at least one additional pressure sensor thereby indicating a filling of the dust bag.
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Accused Products
Abstract
A floor care apparatus has a housing, including a wall, for storing a dust bag. The dust bag is angled relative to the wall and pressure sensors fill the space between the wall and dust bag. During use, as dust fills the bag, the bag expands and impinges upon a first of the pressure sensors and subsequently upon a second of the pressure sensors thereby indicating a filling of the bag with dust. A processor, connected to each of the pressure sensors, sorts a relative difference between signals of the sensors during dust filling. A visual indicator displays to users the relative fullness of the dust bag. To achieve angular disposition between the wall and dust bag, tapers, angular walls, ribs or combinations thereof are contemplated.
39 Citations
16 Claims
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1. A floor care apparatus, comprising:
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a housing having a wall; a dust bag within the housing and angled relative to the wall; and a plurality of pressure sensors between the wall and the dust bag where the dust bag is angled relative to the wall so that, during use as the dust bag fills, the dust bag first contacts one of the pressure sensors and then sequentially contacts at least one additional pressure sensor thereby indicating a filling of the dust bag. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A floor care apparatus, comprising:
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a housing having an internal chamber including a wall; a dust bag within the internal chamber and angled relative to the wall; a plurality of pressure sensors aligned in a space between the wall and the dust bag where the dust bag is angled relative to the wall so that, during use as the dust bag fills, the dust bag contacts a first of the pressure sensors and subsequently contacts at least a second of the pressure sensors thereby indicating a filling of the dust bag with dust; a processor connected to the pressure sensors to sort a relative difference between one of
1) signals from each of the first and second pressure sensors during the filling, and
2) signals from either the first and second pressure sensors during the filling and a reference pressure; anda visual indicator connected to the processor to indicate a relative fullness of the dust bag during use according to the relative difference sorted by the processor. - View Dependent Claims (13, 14, 15, 16)
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Specification