Vacuum cleaner with screen cage
First Claim
Patent Images
1. A vacuum cleaner that has:
- a receptacle;
a lid that fits on the receptacle;
a power head that is attached to and can be removed from the lid by a consumer while the lid remains attached to the receptacle;
a replaceable filter that mounts to the power head and can be removed and replaced by a consumer while the lid remains attached to the receptacle;
a vacuum source that develops an airflow that leads into the interior of the receptacle, and then to the replaceable filter; and
a screen cage that is attached to the lid, and extends into the receptacle, and has apertures that are sized to keep some materials in the airflow from reaching the replaceable filter and are no more than 2.0 mm in size.
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Accused Products
Abstract
A vacuum cleaner has a screen cage that is permanently attached to a lid that fits on a receptacle. The screen cage has multiple layers of screens with different screen sizes, including an inner support that has greater rigidity and larger apertures that the primary screen, and an outer screen that also has greater rigidity and larger apertures than the primary screen, and is made of a different material than the support. A replaceable filter mounts to a power head that can be removed from the lid while the lid remains attached to the receptacle, and nests in the screen cage. A thermal cutoff shuts the vacuum cleaner off when the temperature of air in a part of the flowpath exceeds a limit.
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Citations
15 Claims
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1. A vacuum cleaner that has:
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a receptacle; a lid that fits on the receptacle; a power head that is attached to and can be removed from the lid by a consumer while the lid remains attached to the receptacle; a replaceable filter that mounts to the power head and can be removed and replaced by a consumer while the lid remains attached to the receptacle; a vacuum source that develops an airflow that leads into the interior of the receptacle, and then to the replaceable filter; and a screen cage that is attached to the lid, and extends into the receptacle, and has apertures that are sized to keep some materials in the airflow from reaching the replaceable filter and are no more than 2.0 mm in size. - View Dependent Claims (2)
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3. A vacuum cleaner that has:
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a receptacle; a lid that fits on the receptacle; a power head that is attached to and can be removed from the lid by a consumer while the lid remains attached to the receptacle; a replaceable filter that mounts to the power head and can be removed and replaced by a consumer while the lid remains attached to the receptacle; a vacuum source that develops an airflow that leads into the interior of the receptacle, and then to the replaceable filter; and a screen cage that is attached to the lid, and extends into the receptacle, and has multiple layers of screens with different screen sizes and apertures that are sized to keep some materials in the airflow from reaching the replaceable filter. - View Dependent Claims (4, 5, 6, 7, 9)
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8. A vacuum cleaner as recited in claim in 3, in which the screen cage has apertures that are no more than 2.0 mm in size.
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10. A vacuum cleaner that has:
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a receptacle; a lid that fits on the receptacle; a screen cage that is attached to the lid, extends into the receptacle, extends into the receptacle, and has a screen that has apertures in the range of 0.05-0.3 mm; a support that is part of the screen cage, is positioned on a face of the screen, has greater rigidity than the screen, and has apertures in the range of 0.3-2.0 mm; a power head that is attached to and can be removed from the lid by a consumer while the lid remains attached to the receptacle; a replaceable filter that mounts to the power head and can be removed and replaced by a consumer while the lid and the attached screen cage remain attached to the receptacle; and a vacuum source that develops an airflow that leads into the interior of the receptacle, through the screen cage, to the replaceable filter.
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11. A vacuum cleaner that has:
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a receptacle; a lid that fits on the receptacle; a power head that is attached to and can be removed from the lid by a consumer while the lid remains attached to the receptacle; a replaceable filter that mounts to the power head and can be removed and replaced by a consumer while the lid remains attached to the receptacle; a vacuum source that develops an airflow that leads into the interior of the receptacle, and then to the replaceable filter; a screen cage that is attached to the lid, and extends into the receptacle, and has a primary screen with apertures that are sized to keep some materials in the airflow from reaching the replaceable filter; an outer screen that is positioned on the screen cage, on an outer face of the primary screen, has greater rigidity than the primary screen, and has apertures larger than those of the primary screen; and an inner support that is positioned on an inner face of the primary screen, has greater rigidity than the primary screen, has apertures larger than those of the primary screen, and is made of a different material than the outer screen. - View Dependent Claims (12)
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13. A vacuum cleaner that has:
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a receptacle; a lid that fits on the receptacle; a screen cage that is attached to the lid, extends into the receptacle, and has multiple layers of screens with different screen sizes; a power head that is attached to and can be removed from the lid by a consumer while the lid remains attached to the receptacle; a replaceable filter that mounts to the power head, nests in the screen cage when the power head is attached to the lid, and can be removed and replaced by a consumer while the lid and the attached screen cage remain attached to the receptacle; and a vacuum source that develops an airflow that leads into the interior of the receptacle, through the screen cage, to the replaceable filter. - View Dependent Claims (14, 15)
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Specification