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Upright vacuum cleaner with cyclonic airflow pathway

A technology for vacuum cleaners and airflow, applied in the direction of vacuum cleaners, suction filters, and methods for reacting gaseous media with gaseous media, which can solve problems such as difficult user manipulation and bulky vacuum cleaners

Inactive Publication Date: 2003-01-29
ROYAL APPLIANCE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such cyclonic airflow vacuum cleaners that include cassette discharge filters tend to have a bulky and user-friendly profile

Method used

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  • Upright vacuum cleaner with cyclonic airflow pathway
  • Upright vacuum cleaner with cyclonic airflow pathway
  • Upright vacuum cleaner with cyclonic airflow pathway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Referring to the accompanying drawings, the drawings shown therein are only for the purpose of illustrating the preferred embodiments of the invention and not for the purpose of limiting the invention. FIG. 1 shows a cyclonic airflow type vacuum cleaner A comprising an upright housing portion B and a nozzle base portion C. As shown in FIG. Portions B, C are pivotally connected or hinged by use of a trunnion or other suitable hinge assembly D such that the upright housing portion B is pivotable between a generally vertical storage position (as shown) and an inclined use position. Both the upstanding housing portion and the nozzle base portions B, C are preferably made of conventional materials such as molded plastic or the like. The upright portion B includes a handle 20 extending upwardly therefrom, by means of which the operator of the vacuum cleaner A can grasp and manipulate the vacuum cleaner.

[0027] During vacuuming, the nozzle base C passes over the floor, carp...

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PUM

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Abstract

An upright vacuum cleaner includes an upright housing section and a nozzle base section. A cyclonic airflow dirt and dust separating chamber is defined in the upright housing section. A suction source pulls air and entrained dirt, dust, and other contaminants through a main suction opening formed in the underside of the nozzle base section and into the cyclonic airflow chamber. The cyclonic airflow chamber causes the suction airstream to travel in a cyclonic path such that the entrained contaminants are separated therefrom and deposited into a dirt container that defines the chamber. A main filter element filters residual contaminants from the suction airstream between the chamber and the suction source. An exhaust filter housing includes an airstream suction duct in fluid communication with an outlet of the airflow chamber and an inlet of the suction source. An outlet of the suction source is in fluid communication with an exhaust plenum of the exhaust filter housing. An exhaust filter is positioned radially outward of the exhaust plenum such that exhaust air is forced radially outward through the exhaust filter from the exhaust plenum to ensure that the air discharged into the atmosphere is contaminant free, including those contaminants introduced into the airstream by the suction source itself.

Description

technical field [0001] The invention relates to the field of vacuum cleaners. More specifically, the present invention relates to upright vacuum cleaners for vacuuming dirt and debris from carpets and floors. Background technique [0002] Upright vacuum cleaners are well known in the art. The two types of upright vacuum cleaners are bag vacuums and hard shell vacuums. In a conventional bag vacuum cleaner, the vacuum source creates the suction needed to pull the dust away from the carpet or floor, the dust is drawn through the suction opening, through the motor / fan housing, and vacuumed into a filter bag housed in the bag , the soft bag is fixed to the handle portion of the vacuum cleaner. The cleaned air is then exhausted through the filter bag and the porous walls of the soft bag. In a conventional hard shell vacuum cleaner, a vacuum source creates the suction needed to pull the dust away from the carpet or floor, and the dust is vacuumed through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L9/12A47L5/28A47L5/30A47L9/10A47L9/16A47L9/20
CPCA47L9/1666A47L9/127A47L9/20Y10S55/03A47L5/28
Inventor 罗伯特·A·萨洛查尔斯·J·瑟尔保罗·D·斯蒂芬斯马克·E·西波拉迈克尔·F·赖特
Owner ROYAL APPLIANCE MFG