Nozzle assembly for vacuum cleaner
First Claim
1. A suction nozzle assembly for a vacuum cleaner, which comprises:
- a suction spout having a coupling stem for fluid-connection with the vacuum cleaner, a generally rectangular nozzle housing tiltably connected with the suction spout and having a sweeping surface defined at the bottom thereof, said sweeping surface being adapted to confront a surface to be cleaned, an elongated brush assembly carried by the nozzle housing for movement between projected and retracted positions in a direction perpendicular to the longitudinal direction of the housing through the sweeping surface, a brush height adjustment means for adjustably moving the brush assembly to either the projected or the retracted position, and a restraining means for restraining the housing from undergoing an arbitrary tilting motion relative to the suction spout, said restraining means being operatively associated with said brush height adjustment means.
1 Assignment
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Accused Products
Abstract
A suction nozzle assembly for a vacuum cleaner, which has a suction spout having a coupling stem for fluid-connection with the vacuum cleaner, a generally rectangular nozzle housing tiltably connected with the suction spout and having a sweeping surface defined at the bottom thereof and adapted to confront a surface to be cleaned, an elongated brush assembly carried by the nozzle housing for movement between projected and retracted positions in a direction perpendicular to the longitudinal sense of the housing through the sweeping surface, a brush height adjustment device for adjustably moving the brush assembly to any one of the projected and retracted positions, and a restraint device for restraining the housing from undergoing an arbitrary tilting motion relative to the suction spout.
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Citations
11 Claims
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1. A suction nozzle assembly for a vacuum cleaner, which comprises:
- a suction spout having a coupling stem for fluid-connection with the vacuum cleaner, a generally rectangular nozzle housing tiltably connected with the suction spout and having a sweeping surface defined at the bottom thereof, said sweeping surface being adapted to confront a surface to be cleaned, an elongated brush assembly carried by the nozzle housing for movement between projected and retracted positions in a direction perpendicular to the longitudinal direction of the housing through the sweeping surface, a brush height adjustment means for adjustably moving the brush assembly to either the projected or the retracted position, and a restraining means for restraining the housing from undergoing an arbitrary tilting motion relative to the suction spout, said restraining means being operatively associated with said brush height adjustment means.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A suction nozzle assembly for a vacuum cleaner, which comprises:
- a generally rectangular nozzle housing having a suction channel defined at the bottom thereof, a lip member made of flexible material and depending from the housing on one side of, and generally in parallel to, the suction channel, a pair of brushes extending downwardly from the housing on the opposite side of the lip member from the suction channel and on the other side of the suction channel from the lip member, respectively, for movement between projected and retracted positions through an intermediate position, and a brush height adjustment means carried by the housing for movement in a direction lengthwise of the housing for movement between maximum and minimum projected positions through an intermediate height position, said brushes when said brush height adjustment means is moved to the minimum projected position being held in the retracted position at which the distance the brushes extend downwardly from the bottom of the housing is less than the distance the lip members depends, said brushes when said brush height adjustment means is moved to the intermediate projected position being held in the intermediate position at which the distance the brushes extend downwardly from the bottom of the housing is generally equal to the distance the lip member depends, and said brushes when said brush height adjustment means is moved to the maximum projected position being held at the position at which the distance the brushes extend downwardly from the bottom of the housing is greater than the distance the lip member depends.
Specification