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US 4,854,006 AGranted
Floor nozzle for vacuum cleaner
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiroshi Nishimura, Yasutaka Hirayama
Life of this patent
Estimating the term…
Abstract
A floor nozzle for vacuum cleaner in addition to a main rotating brush has auxiliary rotating brushes positioned aperatures in the side faces of the nozzle which extend to the bottom thereof, thereby to brush and suck dusts of edges on a carpet adjacent a wall of a room.
Claims13
A floor nozzle for a vacuum cleaner comprising:
- a nozzle case having sides, a bottom, a suction compartment therein, an elongated nozzle mouth in said bottom extending between said sides and opening to said compartment and a notch-like aperture in one of said sides extending upward from the lower edge thereof at one end of said mouth;
- a main brush rotatably mounted in said compartment with its axis generally coaxial with said aperture and its tufts extending through said mouth and slightly therebeyond;
- at least one auxiliary brush in said compartment connected by torque limiting means to one end of said main brush and rotatable therewith with the tips of the tufts of said auxiliary brush rotating closely adjacent at least a major portion of the edge of said aperture;
- and
- means for rotating said main brush.
2 more elements
A floor nozzle for a vacuum cleaner comprising:
- a nozzle case having sides, a bottom, a suction compartment therein, an elongated nozzle mouth in said bottom extending between said sides and opening to said compartment and a notch-like aperture in one of said sides extending upward from the lower edge thereof at one end of said mouth, the entire edge of said aperture being substantially arcuate;
- a main brush rotatably mounted in said compartment with its axis generally coaxial with said aperture and its tufts extending through said mouth and slightly therebeyond;
- at least one auxiliary brush in said compartment connected to one end of said main brush and rotatable therewith with the tips of the tufts of said auxiliary brush rotating closely adjacent substantially the entire edge of said aperture to substantially eliminate airflow between the brush tips and the edge of the aperture;
- and
- means for rotating said main brush.
2 more elements
A floor nozzle for a vacuum cleaner comprising:
- a nozzle case having sides, a bottom, a suction compartment therein, an elongated nozzle mouth in said bottom extending between said sides and opening to said compartment and a notch-like aperture in one of said sides extending upward from the lower edge thereof at one end of said mouth;
- a main brush rotatably mounted in said compartment with its axis generally coaxial with said aperture and its tufts extending through said mouth and slightly therebeyond;
- at least one auxiliary brush in said compartment connected to one end of said main brush and rotatable therewith with the tips of the tufts of said auxiliary brush rotating closely adjacent at least a major portion of the edge of said aperture;
- means for rotating said main brush;
- and
- means for preventing fingers from being caught in the auxiliary brush.
3 more elements
Dependencies are inferred from the claim text.