Upright water extraction cleaning machine with two suction nozzles

• US 5,867,861 A
• Filed: 11/12/1996
• Issued: 02/09/1999
• Est. Priority Date: 11/13/1995
• Status: Expired due to Term

• Current Assignee: Bissell Homecare, Inc. (Bissell Inc.)
• Original Assignee: Bissell Homecare, Inc. (Bissell Inc.)
• Inventors: Kelly, Luke E., Reed, Charles A. Jr., Kasen, Timothy E., Simpson, Stephen J., Blase, legal representative, by Gloria R., Blase, deceased, Michael R.
• Primary Examiner(s): Moore, Charles K.
• Application Number:
  US08/747,306
• Time in Patent Office: 819 Days
• Field of Search: 15/320, 15/321, 15/322, 15/416
• US Class Current: 15/320
• CPC Class Codes: A47L 11/34 Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
• CPC Class Codes: A47L 11/4044 Vacuuming or pick-up tools; Squeegees
• CPC Class Codes: A47L 11/4088 Supply pumps; Spraying devices; Supply conduits
• CPC Class Codes: A47L 7/0009 with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
• CPC Class Codes: A47L 7/0042 Gaskets; Sealing means
• CPC Class Codes: A47L 9/02 Nozzles suction nozzles for fluid transport B65G51/00

Abstract

A water extraction cleaning machine has a suction nozzle assembly with two suction nozzle openings incorporated. The suction nozzle openings are preferably positioned one on each side of the cleaning solution spray nozzles so that the cleaning machine can be used for simultaneous application and removal of cleaning fluid regardless of whether the user is pushing or pulling the cleaning machine. In another aspect, a plate member is slidably mounted to the bottom of the suction nozzle assembly. The plate member has a pair of suction nozzle openings which are spaced to seal one of the two suction nozzles of the suction nozzle assembly depending upon the direction of travel of the suction nozzle assembly.

Claims

1. An upright water extraction cleaning machine comprising:

a base module adapted to be moved across a surface being cleaned;

a handle pivotally mounted to the base;

a cleaning fluid tank adapted to receive a cleaning fluid, the cleaning fluid tank being mounted on one of the base module and handle;

a recovery tank adapted to receive collected, used cleaning fluid, the recovery tank being mounted on one of the base module and handle;

a vacuum motor adapted to create a working air flow, the motor being mounted on one of the base module and handle and being fluidly connected to the recovery tank;

a suction nozzle member fluidly connected to the vacuum motor and having a first suction nozzle opening adapted to contact a surface being cleaned, a second suction nozzle opening adapted to contact a surface being cleaned, the first and second suction nozzle openings being substantially parallel to and spaced from one another;

a spray nozzle fluidly connected to the cleaning fluid tank, mounted to the base module, and adapted to distribute cleaning fluid onto the surface being cleaned intermediate the first and second suction nozzle openings;

the suction nozzle member comprising an outer casing having front and rear walls and an inner casing having front and rear walls, the outer and inner casings mounted to one another so that the front and rear walls of the casings define at least a portion of a fluid flow conduit extending between the suction nozzle openings and the recovery tank; and

at least one of the front and second suction nozzle openings being formed in a flange provided on the inner casing.

2. An upright water extraction cleaning machine according to claim 1 wherein the rear suction nozzle opening is formed in a flange provided on the inner casing.

3. An upright water extraction cleaning machine according to claim 1 and further comprising a brush mounted to the base module so that the brush is positioned intermediate the first and second suction nozzle openings.

4. An upright water extraction cleaning machine according to claim 1 wherein the suction nozzle includes a plate member mounted to the bottom of the suction nozzle member for limited articulation therewith, the plate member having first and second suction nozzle openings, the first suction nozzle opening of the plate being aligned with the first suction nozzle opening of the suction nozzle member and the second suction nozzle opening of the suction nozzle member being effectively sealed when the water extraction cleaning machine is moved in a first direction.

5. An upright water extraction cleaning machine according to claim 4 wherein the plate member is slidably mounted to the bottom surface of the suction nozzle member so that the second suction nozzle opening of the plate is aligned with the second suction nozzle opening of the suction nozzle member and the first suction nozzle opening of the suction nozzle member is effectively sealed when the water extraction cleaning machine is moved in a second direction.

6. An upright water extraction cleaning machine according to claim 5 wherein the first direction is opposite the second direction.

7. An upright water extraction cleaning machine according to claim 4 wherein the plate member has a pair of opposed side edges and further comprises a pair of U-shaped flanges formed on the side edges, the U-shaped flanges being adapted to slidably receive at least a portion of the suction nozzle member.

8. An upright water extraction cleaning machine according to claim 7 and further comprising at least one stop formed on one of the plate member and the suction nozzle member, the at least one stop being adapted to limit the articulation of these two elements with respect to one another.

9. An upright water extraction cleaning machine according to claim 4 and further comprising at least one stop formed on one of the plate member and the suction nozzle member, the at least one stop being adapted to limit the articulation of these two elements with respect to one another.

10. An upright water extraction cleaning machine comprising:

a base module adapted to be moved across a surface being cleaned;

a handle pivotally mounted to the base;

a cleaning fluid tank adapted to receive a cleaning fluid, the cleaning fluid tank being mounted on one of the base module and handle;

a recovery tank adapted to receive collected, used cleaning fluid, the recovery tank being mounted on one of the base module and handle;

a vacuum motor adapted to create a working air flow, the motor being mounted on one of the base module and handle and being fluidly connected to the recovery tank;

a suction nozzle assembly fluidly connected to the vacuum motor and comprising an inner casing having front and rear walls, an outer casing having front and rear walls, a first suction nozzle defined, in part;

by the front walls of the inner and outer casings, a first suction nozzle opening fluidly connected to the first suction nozzle and, adapted to contact a surface being cleaned, a second suction nozzle defined, in part, by the rear walls of the inner and outer casings, and a second suction nozzle opening fluidly connected to the second suction nozzle and adapted to contact a surface being cleaned, the first and second suction nozzle openings being spaced from one another; and

a spray nozzle fluidly connected to the cleaning fluid tank, mounted to the base module, and adapted to distribute cleaning fluid onto the surface being cleaned intermediate the first and second suction nozzle openings.

11. An upright water extraction cleaning machine according to claim 10 and further comprising a brush mounted to the base module so that the brush is positioned intermediate the first and second suction nozzle openings.

12. A water extraction cleaning machine comprising:

a cleaning fluid tank adapted to store cleaning fluid;

a recovery tank adapted to receive collected, used cleaning fluid;

a vacuum motor adapted to create a working air flow, the motor being fluidly connected to the recovery tank;

a suction nozzle member fluidly connected to the vacuum motor and having a first suction nozzle opening adjacent a surface being cleaned and a second suction nozzle opening adapted to contact a surface being cleaned;

a plate member mounted to the bottom of the suction nozzle member for limited articulation therewith, the plate member having first and second suction nozzle openings in a first position as the suction nozzle member is moved in a first direction, the first suction nozzle opening of the plate being aligned with the first suction nozzle opening of the suction nozzle member and the second suction nozzle opening of the suction nozzle member being effectively sealed; and

a spray nozzle fluidly connected to the cleaning fluid tank, mounted to the base module, and adapted to distribute cleaning fluid onto the surface being cleaned intermediate the first and second suction nozzle openings.

13. A water extraction cleaning machine according to claim 12 wherein the plate member is slidably mounted to the bottom surface of the suction nozzle member so that in a second position, as the suction nozzle member is moved in a second direction, the second suction nozzle opening of the plate is aligned with the second suction nozzle opening of the suction nozzle member and the first suction nozzle opening of the suction nozzle member is effectively sealed.

14. A water extraction cleaning machine according to claim 13 wherein the first direction is opposite the second direction.

15. A water extraction cleaning machine according to claim 13 wherein the plate member has a pair of opposed side edges and further comprises a pair of U-shaped flanges formed on the side edges, the U-shaped flanges being adapted to slidably receive at least a portion of the suction nozzle member.

16. An upright water extraction cleaning machine according to claim 15 and further comprising at least one stop formed on one of the plate member and the suction nozzle member, the at least one stop being adapted to limit the articulation of these two elements with respect to one another.

17. An upright water extraction cleaning machine according to claim, 12 and further comprising at least one stop formed on one of the plate member and the suction nozzle member, the at least one stop being adapted to limit the articulation of these two elements with respect to one another.