초록

Disclosed is a unique and novel air filtrating, self-propelled upright vacuum cleaner. The filtration system utilizes a HEPA-rated air filter as a final filtering element. The disclosed vacuum cleaner contains numerous other features including a self-propelled drive mechanism.

대표청구항 ▼

[ What is claimed is:] [1.] A vacuum cleaner comprising:a rear housing having an upper portion, a middle portion, and a lower portion;an upper front cover engaged with said upper portion of said rear housing;a bag cover releasably engaged with said middle portion of said rear housing, wherein said b

[ What is claimed is:] [1.] A vacuum cleaner comprising:a rear housing having an upper portion, a middle portion, and a lower portion;an upper front cover engaged with said upper portion of said rear housing;a bag cover releasably engaged with said middle portion of said rear housing, wherein said bag cover and said rear housing define a suction chamber for enclosing a filter bag;a base unit providing a lower enclosure, said base unit pivotally secured to said rear housing;a motor and fan assembly disposed in a motor and fan shroud within said rear housing;said motor and fan shroud defining a sealed air flow passage around the entire motor and fan assembly, said shroud having an inlet duct and an outlet duct, said inlet duct being in fluid communication with said suction chamber and said outlet duct being in communication with an exhaust chamber; said exhaust chamber comprising a compartment adjacent said suction chamber and said motor and fan shroud, said exhaust chamber being separated from said suction chamber by a wall;a nested wand releasably retained along the exterior of said rear housing, said wand having an upper portion and a lower portion;a lower air conduit extending between said base unit and said lower portion of said nested wand; andan upper air conduit extending between said upper portion of said nested wand and said suction chamber.