Hand held turbine powered extractor nozzle

A compact hand held extractor nozzle with at least one powered scrub brush comprising:

• a cleaning fluid applicator;
• a suction tube having a suction extractor nozzle mounted on one end thereof;
• at least one rotary scrub brush adjacent to the nozzle;
• an air powered turbine located between the scrub brush and the tube, the turbine having at least one turbine inlet communicating with ambient atmosphere and a turbine outlet communicating with the suction tube;
• a gear train drivingly connecting the turbine with the brush;
• a generally disc-shaped turbine housing having a first end wall adjacent and generally parallel to the suction tube, a second end wall parallel to and spaced from the first end wall, and a peripheral wall joining the first and second end walls enclosing a generally disc-shaped turbine chamber, the at least one turbine inlet being located in the peripheral wall and the turbine outlet being located centrally in the first end wall;
• a generally disc-shaped turbine rotor rotatably mounted in the turbine chamber on an axle rotatably mounted in the second end wall, a first end of the axle extending through and beyond the second end wall;
• and
• wherein helical gear teeth are provided on the first end of the axle, thereby defining a helical gear shaft that drivingly engages the gear train, the helical teeth on the gear shaft are twisted about the gear shaft such that, under load, the engagement of the gear shaft with the gear train creates a generally axial force on the axle in a direction away from the turbine outlet.

A compact hand held extractor nozzle with at least one powered scrub brush comprising:

• a cleaning fluid applicator;
• a suction tube having a suction extractor nozzle mounted on one end thereof;
• at least one rotary scrub brush adjacent to the nozzle;
• an air powered turbine located between the scrub brush and the tube, the turbine having at least one turbine inlet communicating with ambient atmosphere and a turbine outlet communicating with the suction tube;
• the brush being drivingly connected to the turbine;
• wherein the turbine comprises a generally disc-shaped turbine housing having a first end wall adjacent and generally parallel to the suction tube, a second end wall parallel to and spaced from the first end wall, and a peripheral wall joining the first and second end walls enclosing a generally disc-shaped turbine chamber and a generally disc-shaped turbine rotor rotatably mounted in the turbine chamber on an axle that is rotatably mounted in the second end wall;
• and
• wherein a sleeve bearing is mounted in the second end wall and the axle is rotatably mounted in the bearing, wherein a surface of the rotor facing the second end wall has a centrally located recess and the bearing is mounted in a raised portion of the second end wall that extends into the recess, such that the bearing is at least partially received in said recess.

A compact hand held extractor nozzle with at least one powered scrub brush comprising:

• a cleaning fluid applicator;
• a suction tube having a suction extractor nozzle mounted on one end thereof;
• at least one rotary scrub brush adjacent to the nozzle;
• an air powered turbine located between the scrub brush and the tube, the turbine having at least one turbine inlet communicating with ambient atmosphere and a turbine outlet communicating with the suction tube;
• the brush being drivingly connected to the turbine;
• and
• wherein the turbine further comprises an outlet baffle for directing air, liquid and other debris traveling through the suction tube over and beyond the turbine outlet to substantially prevent the liquid and debris from entering the turbine outlet and fouling the turbine.

A hand held power extractor nozzle for above floor cleaning comprising:

• a cleaning liquid applicator for applying cleaning liquid to a surface being cleaned;
• a suction extractor nozzle having a nozzle inlet for removing soiled cleaning liquid from a surface being cleaned and a nozzle outlet;
• a suction tube extending from the nozzle outlet;
• an agitator for scrubbing a surface to be cleaned;
• and
• an air powered turbine for driving the agitator, the turbine being located adjacent to the suction nozzle and between the agitator and the suction tube and the agitator being located intermediate the turbine and a surface to be cleaned, the turbine having at least one turbine inlet in fluid communication with ambient air and at least one turbine outlet communicating with an opening in the suction tube, whereby suction in the suction tube draws ambient air through the turbine for driving the agitator, while simultaneously drawing air through the suction nozzle for removing soiled cleaning liquid from a surface to be cleaned.

A hand held power extractor nozzle for above floor cleaning comprising:

• a cleaning liquid applicator for applying cleaning liquid to a surface to be cleaned;
• a suction extractor nozzle having a nozzle inlet for removing soiled cleaning liquid from a surface to be cleaned and a nozzle outlet;
• a suction tube extending from the nozzle outlet;
• an agitator for scrubbing a surface to be cleaned;
• and
• an air powered turbine for driving the agitator, the turbine being located adjacent to the suction nozzle and between the agitator and the suction tube, the turbine having at least one turbine inlet in fluid communication with ambient air and at least one turbine outlet in fluid communication with an opening in the suction tube, whereby suction in the suction tube draws ambient air through the turbine for driving the agitator, while simultaneously drawing air through the extractor nozzle for removing soiled cleaning liquid from a surface to be cleaned;
• the turbine comprises a generally disc-shaped turbine housing arranged in a plane substantially parallel to the suction tube and a generally disc-shaped turbine rotor rotatably mounted in the turbine housing;
• and
• the agitator comprises at least two vertical axis rotary scrub brushes.

An extractor nozzle having an agitator and an air turbine operatively connected to the agitator for driving the agitator, the turbine having at least one ambient air inlet opening and an outlet opening, wherein the improvement comprises:

• a suction tube having the extractor nozzle attached to a first end thereof, a second end of the suction tube being adapted for connection to a suction inlet of a wet pickup suction cleaner;
• a turbine exhaust opening in the suction tube in fluid communication with the turbine outlet opening, whereby when suction is applied to the suction tube air is drawn through the turbine for driving the agitator;
• and
• a turbine outlet baffle extending from an edge of the turbine outlet opening proximate the extractor nozzle into the suction tube and over and beyond the turbine outlet opening, the end of the baffle remote from the nozzle being open for providing fluid communication between the turbine outlet opening and the suction tube, and suction openings passing through opposing sides of the baffle for providing further fluid communication between the turbine outlet opening and the suction tube.

A compact hand held extractor nozzle with air turbine powered scrub brushes, said hand held extractor nozzle comprising:

• a suction tube having a suction nozzle mounted on one end thereof, a second end of the suction tube defining a hand grip;
• the scrub brushes comprise a pair of counter-rotating vertical axis rotary scrub brushes located adjacent to the nozzle;
• the air turbine being located between the scrub brushes and the suction tube, the turbine having at least one turbine inlet communicating with ambient atmosphere and a turbine outlet communicating with the suction tube;
• and
• a gear train drivingly connecting the turbine with the brushes.