Extractor cleaning machine

Patent metadata

Field	Value
Publication number	US-9615713-B2
Application number	US-201615095610-A
Country	US
Kind code	B2
Filing date	Apr 11, 2016
Priority date	Mar 12, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

An extractor cleaning machine that includes a base having a base exhaust duct having an exhaust outlet directed toward a surface being cleaned. The extractor further includes a suction source that is operable to generate an airflow that is discharged through the exhaust outlet of the base and onto the surface, which is configured to at least partially dry the surface. The extractor further includes a body pivotally coupled to the base such that the body is pivotable between an upright position and an inclined position, and the body includes a body exhaust duct that is movable relative to the base exhaust duct as the handle pivots between the upright position and the inclined position. The base exhaust duct and the body exhaust duct cooperate to form an exhaust passageway between the suction source and the exhaust outlet.

First claim

What is claimed is:

1. An extractor cleaning machine comprising:
a base movable along a surface to be cleaned, the base including a suction nozzle;
a body pivotally coupled to the base such that the body is pivotable between an upright position and an inclined position, the body including
a supply tank configured to store a cleaning fluid,
a recovery tank in fluid communication with the suction nozzle,
a cylindrical motor housing having a first side surface, a second side surface, and an arcuate surface extending between the first and second side surfaces, the arcuate surface including an air duct outlet, and
a suction source coupled to the cylindrical motor housing, the suction source is operable to generate an airflow that is in fluid communication with the suction nozzle to draw the cleaning fluid into the recovery tank, the suction source is configured to discharge the airflow through the air duct outlet downstream of the suction nozzle and the recovery tank.

2. The extractor cleaning machine of claim 1 , wherein the air duct outlet is positioned closer to the first side surface than the second side surface of the cylindrical motor housing.

3. The extractor cleaning machine of claim 1 , further comprising a body exhaust duct coupled to the body for movement with the body, wherein the body exhaust duct is in fluid communication with the air duct outlet, and wherein the body exhaust duct is configured to direct the airflow from the air duct outlet to the surface.

4. The extractor cleaning machine of claim 1 , wherein the airflow is a working airflow and the suction source is operable to generate a cooling airflow that is fluidly isolated from the working airflow.

5. The extractor cleaning machine of claim 4 , wherein the body includes an air duct inlet, and wherein the suction source is in fluid communication with the air duct inlet, and wherein the suction source is configured to draw the cooling airflow into the body through the air duct inlet.

6. The extractor cleaning machine of claim 5 , wherein the cylindrical motor housing includes a cooling duct outlet, and wherein the suction source is configured to discharge the cooling airflow through the cooling duct outlet after the cooling airflow enters the body through the air duct inlet.

7. The extractor cleaning machine of claim 5 , wherein the air duct inlet is located between the air duct outlet and the supply tank.

8. A floor cleaning machine comprising:
a base movable along a surface to be cleaned, the base including a suction nozzle;
a body pivotally coupled to the base, the body including a cylindrical motor housing having a first side surface, a second side surface, and an arcuate surface extending between the first and second side surfaces, the arcuate surface including an air duct outlet; and
a suction source coupled to the cylindrical motor housing, the suction source is in fluid communication with the suction nozzle and the air duct outlet, the suction source is operable to generate an airflow that is discharged through the air duct outlet downstream of the suction nozzle.

9. The floor cleaning machine of claim 8 , wherein the air duct outlet is positioned closer to the first side surface than the second side surface of the cylindrical motor housing.

10. The floor cleaning machine of claim 8 , further comprising a body exhaust duct coupled to the body for movement with the body, wherein the body exhaust duct is in fluid communication with the air duct outlet, and wherein the body exhaust duct is configured to direct the airflow from the air duct outlet to the surface.

11. The floor cleaning machine of claim 8 , wherein the airflow is a working airflow and the suction source is operable to generate a cooling airflow that is fluidly isolated from the working airflow.

12. The floor cleaning machine of claim 11 , wherein the body includes an air duct inlet, and wherein the suction source is in fluid communication with the air duct inlet, and wherein the suction source is configured to draw the cooling airflow into the body through the air duct inlet.

13. The floor cleaning machine of claim 12 , wherein the cylindrical motor housing includes a cooling duct outlet, and wherein the suction source is configured to discharge the cooling airflow through the cooling duct outlet.

14. The floor cleaning machine of claim 13 , wherein the body exhaust duct is configured to direct the cooling airflow from the cooling duct outlet to the surface.

15. A floor cleaning machine comprising:
a base movable along a surface to be cleaned, the base including a suction nozzle;
a body pivotally coupled to the base, the body including a cylindrical motor housing having a first side surface, a second side surface, and an arcuate surface extending between the first and second side surfaces, the arcuate surface including an air duct outlet, the cylindrical motor housing also including an air duct inlet; and
a suction source coupled to the cylindrical motor housing, the suction source is operable to generate a cooling airflow and a working airflow with the cooling airflow fluidly isolated from the working airflow, the suction source is in fluid communication with the air duct inlet to draw the cooling airflow into the body through the air duct inlet, the suction source is also configured to discharge the working airflow through the air duct outlet downstream of the suction nozzle.

16. The floor cleaning machine of claim 15 , wherein the air duct outlet is positioned closer to the first side surface than the second side surface of the cylindrical motor housing.

17. The floor cleaning machine of claim 15 , further comprising a body exhaust duct coupled to the body for movement with the body, wherein the body exhaust duct is in fluid communication with the air duct outlet, and wherein the body exhaust duct is configured to direct the working airflow from the air duct outlet to the surface.

18. The floor cleaning machine of claim 17 , wherein the cylindrical motor housing includes a cooling duct outlet in fluid communication with the body exhaust duct, and wherein the suction source is configured to discharge the cooling airflow through the cooling duct outlet.

19. The floor cleaning machine of claim 18 , wherein the body exhaust duct is configured to direct the cooling airflow from the cooling duct outlet to the surface.

20. The floor cleaning machine of claim 19 , wherein the body exhaust duct includes a wall that fluidly isolates the working airflow discharged from the air duct outlet and the cooling airflow discharged from the cooling duct outlet.

Assignees

• Techtronic Ind Co Ltd

Inventors

• Salo Robert
• Phalen Luke

Classifications

• A47L11/4097

  Means for exhaust-air diffusion; Exhaust-air treatment, e.g. air purification; Means for sound or vibration damping · CPC title

• A47L11/4044

  Vacuuming or pick-up tools; Squeegees · CPC title

• A47L11/4083

  Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices · CPC title

• A47L5/14 Primary

  cleaning by blowing-off, also combined with suction cleaning · CPC title

• A47L11/34

  Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam · CPC title