Air Flow Losses in a Vacuum Cleaners
First Claim
1. A vacuum cleaner comprising:
- a handle having a handle air passage extending therein;
a base attached to a first end of the handle by an articulating joint, the base having a base inlet positioned to face a surface to be cleaned;
a base air passage extending from the base inlet, past the articulated joint by a flexible hose, and to the handle air passage;
a dirt collection assembly associated with the handle, and in fluid communication with the handle air passage;
a fan associated with the handle, and in fluid communication with the handle air passage;
a motor associated with the handle, and adapted to drive the fan to thereby generate an airflow through the base inlet, flexible hose, handle air passage, and dirt collection assembly;
wherein the flexible hose comprises a generally rectangular cross-section along a substantial portion thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
A vacuum cleaner having a handle with a handle air passage, a base attached to a first end of the handle by an articulating joint and having a base inlet positioned to face a surface to be cleaned, a base air passage extending from the base inlet and past the articulated joint by a flexible hose and to the handle air passage, a dirt collection assembly associated with the handle and in fluid communication with the handle air passage, a fan associated with the handle and in fluid communication with the handle air passage, and a motor associated with the handle and adapted to drive the fan to thereby generate an airflow through the base inlet, flexible hose, handle air passage, and dirt collection assembly. The flexible hose has a generally rectangular cross-section along a substantial portion thereof.
370 Citations
20 Claims
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1. A vacuum cleaner comprising:
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a handle having a handle air passage extending therein;
a base attached to a first end of the handle by an articulating joint, the base having a base inlet positioned to face a surface to be cleaned;
a base air passage extending from the base inlet, past the articulated joint by a flexible hose, and to the handle air passage;
a dirt collection assembly associated with the handle, and in fluid communication with the handle air passage;
a fan associated with the handle, and in fluid communication with the handle air passage;
a motor associated with the handle, and adapted to drive the fan to thereby generate an airflow through the base inlet, flexible hose, handle air passage, and dirt collection assembly;
wherein the flexible hose comprises a generally rectangular cross-section along a substantial portion thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vacuum cleaner comprising:
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a handle having a handle air passage extending therein;
a base attached to a first end of the handle by an articulating joint, the base having a base inlet positioned to face a surface to be cleaned;
a base air passage extending from the base inlet, past the articulated joint by a flexible hose having a generally rectangular cross-section along a substantial portion thereof, and to the handle air passage;
a handheld unit selectively removable from the handle, the handheld unit comprising a handheld unit inlet, a dirt collection assembly, a fan, and a motor, the motor being adapted to drive the fan to thereby generate an airflow through the handheld unit inlet and the dirt collection assembly;
wherein the handheld unit inlet is in fluid communication with the handle air passage when the handheld unit is attached to the handle, and when so positioned, the motor is adapted to drive the fan to thereby generate an airflow through the base air passage, the handle air passage, the handheld unit inlet, and the dirt collection assembly. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A vacuum cleaner comprising:
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a handle having a handle air passage extending therein;
a base attached to a first end of the handle by an articulating joint, the base having a base inlet positioned to face a surface to be cleaned;
an air passage extending from the base inlet, past the articulated joint by a flexible hose, and to the handle air passage;
a dirt collection assembly in fluid communication with the handle air passage;
a fan assembly in fluid communication with the handle air passage;
a motor adapted to drive the fan assembly to thereby generating an airflow through the base inlet, the flexible hose, the handle air passage, and the dirt collection assembly;
wherein the flexible hose comprises a non-ovate cross-section along a substantial portion thereof. - View Dependent Claims (20)
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Specification