Battery power combination vacuum cleaner
First Claim
Patent Images
1. A vacuum cleaner comprising:
- an elongated canister defining a motor housing;
a motor housing comprising an elongated casing having a longitudinal axis and an end wall;
a motor and fan assembly mounted in said housing, said fan having an axis of rotation angularly related to said longitudinal axis so that said fan presents a circular envelope of rotation when viewed in the direction of its axis of rotation and presents an elliptical envelope of rotation when viewed in the direction of said longitudinal axis;
an aperture defined by said end wall;
an air duct between said fan and said end wall;
a containment chamber having a proximal end removably attached to said end wall and a distal end defining an intake opening;
a substantially planar filter within said containment chamber and extending from said distal end to said proximal end of said containment chamber to separate said containment chamber into an air flow chamber and a dirt chamber;
said aperture being separated from air flow communication with said intake opening by said filter.
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Abstract
A battery-powered vacuum cleaner that may be converted from a conventional on-the-floor cleaner to a portable canister cleaner for off-the-floor or on-the-floor cleaning operations. The vacuum cleaner has a filter chamber comprising a removable dirt cup having a substantially flat filter oriented in the direction of air flow. A fan and motor assembly is angularly related to the longitudinal axis of the vacuum cleaner to provide a lower profile of the cleaner housing while cleaning under low clearance objects. A handle is adjustable relative to the housing, or it may be removed to convert the cleaner to a portable canister.
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Citations
26 Claims
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1. A vacuum cleaner comprising:
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an elongated canister defining a motor housing;
a motor housing comprising an elongated casing having a longitudinal axis and an end wall;
a motor and fan assembly mounted in said housing, said fan having an axis of rotation angularly related to said longitudinal axis so that said fan presents a circular envelope of rotation when viewed in the direction of its axis of rotation and presents an elliptical envelope of rotation when viewed in the direction of said longitudinal axis;
an aperture defined by said end wall;
an air duct between said fan and said end wall;
a containment chamber having a proximal end removably attached to said end wall and a distal end defining an intake opening;
a substantially planar filter within said containment chamber and extending from said distal end to said proximal end of said containment chamber to separate said containment chamber into an air flow chamber and a dirt chamber;
said aperture being separated from air flow communication with said intake opening by said filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A vacuum cleaner comprising:
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an elongated canister defining a motor housing having a longitudinal axis and an end wall;
a motor and fan assembly mounted in said housing, said fan housing having an axis of rotation angularly related to said longitudinal axis so that said fan presents a circular envelope of rotation when reviewed in the direction of its rotation and presents an elliptical envelope of rotation when viewed in the direction of said longitudinal axis, a filter chamber having an outlet in communication with said fan and an inlet opening for receiving vacuumed debris, and parallel ribs provided on opposite sides of said chamber, and a filter in said filter chamber mounted on said parallel ribs and between said inlet opening and said outlet opening. - View Dependent Claims (22, 23, 24)
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25. A vacuum cleaner comprising:
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an elongated canister defining a motor housing;
a motor housing comprising an elongated casing having a longitudinal axis and an end wall;
a motor and fan assembly mounted in said housing, said fan having an axis of rotation angularly related to said longitudinal axis so that said fan presents a circular envelope of rotation when viewed in the direction of its axis of rotation and presents an elliptical envelope of rotation when viewed in the direction of said longitudinal axis;
an aperture defined by said end wall;
an air duct between said fan and said end wall;
a containment chamber having a proximal end removably attached to said end wall and a distal end defining an intake opening;
a substantially planar filter within said containment chamber and extending from said distal end to said proximal end of said containment chamber to separate said containment chamber into an air flow chamber and a dirt chamber;
said aperture being separated from air flow communication with said intake opening by said filter, an impeller mounted on said fan having a pair of circular discs, one of said discs having a circular central opening therethrough, a plurality of spaced curved vanes between said discs extending outwardly from said central opening to an outer periphery of said disc, wherein said motor is mounted on one side of a cover plate and has a fan drive shaft extending through said cover plate and mounting said fan, a plurality of air guide vanes along opposite lateral edges of said cover plate and providing space for said fan to rotate therebetween, and a base plate having lateral edges to said vanes and being spaced from said one of said discs, said base plate having an air passage opening communicating with said central opening of said one of said discs, said guide vanes having end tabs extending beyond the lateral edges of the cover plate and the base plate, said end tabs extending through a pair of slots in said motor housing to direct exhaust air from said fan and to mount said motor and fan assembly in said housing.
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26. A vacuum cleaner comprising:
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an elongated canister defining a motor housing;
a motor housing comprising an elongated casing having a longitudinal axis and an end wall;
a motor and fan assembly mounted in said housing, said fan having an axis of rotation angularly related to said longitudinal axis so that said fan presents a circular envelope of rotation when viewed in the direction of its axis of rotation and presents an elliptical envelope of rotation when viewed in the direction of said longitudinal axis;
an aperture defined by said end wall;
an air duct between said fan and said end wall;
a containment chamber having a proximal end removably attached to said end wall and a distal end defining an intake opening;
a substantially planar filter within said containment chamber and extending from said distal end to said proximal end of said containment chamber to separate said containment chamber into an air flow chamber and a dirt chamber;
said aperture being separated from air flow communication with said intake opening by said filter, an impeller mounted on said fan having a pair of circular discs, one of said discs having a circular central opening therethrough, a plurality of spaced curved vanes between said discs extending outwardly from said central opening to an outer periphery of said disc, wherein said motor is mounted on one side of a cover plate and has a fan drive shaft extending through said cover plate and mounting said fan, a plurality of air guide vanes along opposite lateral edges of said cover plate and providing space for said fan to rotate therebetween, a base plate having lateral edges to said vanes and being spaced from said one of said discs, said base plate having an air passage opening communicating with said central opening of said one of said discs, said guide vanes having end tabs extending beyond the lateral edges of the cover plate and the base plate, said end tabs extending through a pair of slots in said motor housing to direct exhaust air from said fan and to mount said motor and fan assembly in said housing, and an aperture defined by said end wall, an air duct between said fan and said end wall, said air duct comprising an air guide cylinder axially projecting from said central opening and an air cone conduit having a circular opening at one end into which said air guide cylinder extends, and a laterally elongated opening at another end that communicated with said aperture defined by said end wall.
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Specification