Airflow indicator assembly and method for vacuum cleaner
First Claim
Patent Images
1. A vacuum cleaner comprising:
- an airflow outlet;
an airflow indicator assembly removably disposed at the outlet and including a pair of fins attached to a spine, and a needle disposed between the pair of fins;
wherein, during operation of the vacuum cleaner, exhaust air is directed through the airflow outlet towards the needle, pushing the needle thereby indicating whether service is needed.
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Abstract
A vacuum cleaner having an airflow outlet and an airflow indicator assembly removably disposed at the outlet. The airflow indicator assembly includes a pair of fins attached to a spine and a needle disposed between the pair of fins. During operation of the vacuum cleaner, exhaust air is directed through the outlet and towards the needle, pushing the needle thereby indicating whether service is needed.
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Citations
29 Claims
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1. A vacuum cleaner comprising:
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an airflow outlet; an airflow indicator assembly removably disposed at the outlet and including a pair of fins attached to a spine, and a needle disposed between the pair of fins; wherein, during operation of the vacuum cleaner, exhaust air is directed through the airflow outlet towards the needle, pushing the needle thereby indicating whether service is needed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An airflow indicator assembly adapted to be disposed at an airflow outlet of a vacuum cleaner, the airflow indicator assembly comprising:
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a spine; a pair of fins attached to the spine; and a needle disposed between the pair of fins; wherein, during operation of the vacuum cleaner, exhaust air is directed through the airflow outlet and towards the needle, pushing the needle thereby indicating whether service is needed. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A cap assembly for an airflow outlet of a vacuum cleaner, the cap assembly comprising:
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a cap having a front end with at least one aperture; and an airflow indicator assembly attached to the front end of the cap and including a pair of fins attached to a spine, and a needle disposed between the pair of fins; wherein, during operation of the vacuum cleaner, exhaust air is directed through the airflow outlet towards the needle, pushing the needle indicating whether service is needed. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method of manufacturing an airflow indicator assembly comprising:
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disposing a needle between a pair of fins attached to a spine; folding each fin of the pair of fins towards each other about at least one hinge disposed between the spine and at least one fin; and attaching the fins to each other via at least one attachment mechanism. - View Dependent Claims (27, 28, 29)
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Specification