Filter assembly

Inactive Publication Date: 2015-11-12
ELECTRICAL HOME AIDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a filter assembly that includes a hollow body with a filter chamber, a filter located in the chamber, and a light assembly that can visually inspect the chamber. The filter cover is a removable cup that is transparent or light conducting, and the light source includes LEDs and a light pipe to deliver light to the cup. The invention allows for easy visual inspection of the chamber and filter without removal of the cover. The technical effects of the invention include improved inspection of the filter and chamber, without the need for a costly and time-consuming filter replacement.

Problems solved by technology

A disadvantage of known vacuum cleaners is that the efficiency of the vacuum cleaner diminishes as the volume of material accumulating increases.
A further disadvantage is that the operator may not be aware that the efficiency of the vacuum cleaner is diminishing.

Method used

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Examples

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Embodiment Construction

[0020]In the accompanying drawings there is schematically depicted a filter assembly 10. The assembly 10 includes a hollow body 30 moulded of plastics material and has an inlet tube 11 and an outlet tube 12. The tubes 11 and 12 are coupled to hoses or tubes 13 and 14 of a vacuum cleaner. As an example, the tube 14 may be a flexible hose, and the tube 13 a metal tube that is generally gripped by a user of the vacuum cleaner. As an alternative, the tube 13 may also be a flexible hose.

[0021]The inlet tube 11 has an inlet opening 15, while the outlet tube 12 has an outlet opening 16.

[0022]The body 11 also provides a duct 17, extending from the inlet opening 15 to the outlet opening 16, through which air passes.

[0023]The duct 17 includes an inlet duct portion 18 and an outlet duct portion 19, between which there is located a filter chamber 20.

[0024]Located in the filter chamber 20 is a removable filter cartridge 21 that engages a hollow, tubular mounting 22. The chamber 30 and filter car...

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Abstract

A filter assembly (10) for a vacuum cleaner. The assembly (10) is a cup (23) that generally surrounds a cartridge chamber (20). Located in the chamber (20) is a filter cartridge (21). The assembly (10) further includes means to illuminate the chamber (20), the means including light pipes (29) and a circuit board (27).

Description

FIELD[0001]The present invention relates to filter assemblies, and more particularly but not exclusively to filter assemblies employable with a vacuum cleaner.BACKGROUND[0002]Typically a vacuum cleaner includes a hollow body within which there is located an electric motor that drives an air pump. The air pump draws air in the through the vacuum cleaner from a hose that is held and manoeuvred by a person using the vacuum cleaner. The vacuum cleaner also includes a filter through which the air passes, with the filter arranged to remove material from the airstream passing through the vacuum cleaner.[0003]A disadvantage of known vacuum cleaners is that the efficiency of the vacuum cleaner diminishes as the volume of material accumulating increases. A further disadvantage is that the operator may not be aware that the efficiency of the vacuum cleaner is diminishing.OBJECT OF THE INVENTION[0004]It is the object of the present invention to overcome or substantially ameliorate at least one ...

Claims

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Application Information

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IPC IPC(8): A47L9/19A47L9/12
CPCA47L9/12A47L9/19A47L9/104A47L9/16A47L9/30B01D46/4254
Inventor DUONG, HIEP
Owner ELECTRICAL HOME AIDS
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