Vacuum cleaner with recirculated exhaust air

A vacuum cleaner in which exhaust air is recirculated to the cleaning head comprises flexible pipes or hose 3, arranged to return contaminated air from the dust bag to nozzles 4 directed on to the carpet (or object to be cleaned) at an inward angle where it assists in removing dust arid dirt which i...

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Bibliographic Details
Main Author BENJAMIN EDGINTON
Format Patent
LanguageEnglish
Published 09.11.1994
Edition5
Subjects
COFFEE MILLS
DOMESTIC ARTICLES OR APPLIANCES
DOMESTIC WASHING OR CLEANING
FURNITURE
HUMAN NECESSITIES
SPICE MILLS
SUCTION CLEANERS IN GENERAL
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Summary:A vacuum cleaner in which exhaust air is recirculated to the cleaning head comprises flexible pipes or hose 3, arranged to return contaminated air from the dust bag to nozzles 4 directed on to the carpet (or object to be cleaned) at an inward angle where it assists in removing dust arid dirt which is then drawn into the cleaner. Alternatively the pressurised air can be returned through the vacuum cleaner housing to the front of the machine and down on to the carpet via holes 15 (Fig. 5). In both methods most of the air and dust which comes from the dust bag is retained within the cleaner and returned to the dust bag, thus reducing contamination and odour.
Bibliography:Application Number: GB19930012437