Accessory crevice tool for use with water extraction cleaning machine

• US 5,613,272 A
• Filed: 12/19/1995
• Issued: 03/25/1997
• Est. Priority Date: 12/19/1995
• Status: Expired due to Term

• Current Assignee: Bissell Homecare, Inc. (Bissell Inc.)
• Original Assignee: Bissell Inc.
• Inventors: Huffman, Eric C.
• Primary Examiner(s): MOORE, CHRISTOPHER K
• Application Number:
  US08/574,769
• Time in Patent Office: 462 Days
• Field of Search: 15/321, 15/322, 15/415.1
• US Class Current: 15/321
• 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 11/4061 Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
• CPC Class Codes: B05B 1/042 Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet B05B1/044, B05B1/046 take precedence

Abstract

An accessory crevice cleaning tool adapted for use with a water extraction cleaning machine has a solution spray nozzle integrated therewith and a tapered, rectangular nozzle opening which does not exceed the diameter of the hose and grip tube. The spray nozzle can be adapted to provide a pinpoint spray pattern immediately adjacent the nozzle opening, a fan-shaped spray pattern which is parallel to and aligned with the longitudinal axis of the nozzle opening or a fan-shaped spray pattern which is transverse to and spaced from the longitudinal axis of the nozzle opening. Preferably, the accessory crevice cleaning tool is removably mounted to the end of the flexible hose.

Claims

1. An accessory cleaning tool adapted to be used with a water extraction cleaning machine having a vacuum conduit and a solution conduit extending therefrom, the accessory cleaning tool comprising:

a hollow, tubular body portion having a prescribed diameter and a working air passageway formed therein;

a tapered body portion extending from one end of the tubular body portion, the tapered body portion comprising;

a pair of opposed side walls extending from one end of the tubular body portion to terminal edges wherein the side walls gradually converge toward one another with increasing distance from the tubular body portion; and

top and bottom walls extending from one end of the tubular body portion, terminating at terminal edges and intersecting the opposed side walls, the top and bottom walls being spaced from one another no more than the prescribed diameter of the tubular body portion and, in conjunction with the opposed side walls, defining a working air passageway which is fluidly connected to the working air passageway of the tubular body portion;

a nozzle opening formed by the terminal edges of the top, bottom and opposed side walls and fluidly opening into the working air passageway of the tapered body portion; and

a spray nozzle provided on one of the tubular body portion and tapered body portion and being adapted to be fluidly connected to the solution conduit of the water extraction cleaning machine and to direct a spray of cleaning solution onto a surface to be cleaned.

2. An accessory cleaning tool according to claim 1 wherein the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially circular in cross section and several times smaller than the fluid inlet so that pressurized fluid exiting the fluid outlet of the nozzle body creates a focused, circular spray pattern.

3. An accessory cleaning tool according to claim 2 wherein the fluid outlet is positioned relative to the tubular body portion to provide the focused, circular solution spray pattern at a point immediately adjacent to the nozzle opening.

4. An accessory cleaning tool according to claim 1 wherein the terminal edges of the opposed side walls are longer than the terminal edges of the top and bottom walls so that the nozzle opening of the tubular body portion is substantially rectangular in cross section and the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially rectangular in cross section and positioned with respect to the tubular body portion so that pressurized fluid exiting the fluid outlet creates a fan shaped pattern having a longitudinal axis which is substantially parallel to and aligned with a longitudinal axis of the rectangular nozzle opening.

5. An accessory cleaning tool according to claim 4 wherein the fluid outlet is positioned to provide the solution spray at a point immediately adjacent to one end of the nozzle opening.

6. An accessory cleaning tool according to claim 1 wherein the terminal edges of the opposed side walls are longer than the terminal edges of the top and bottom walls so that the nozzle opening of the tubular body portion is substantially rectangular in cross section and the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially rectangular in cross section and positioned with respect to the tubular body portion so that pressurized fluid exiting the fluid outlet creates a fan shaped pattern having a longitudinal axis which is substantially perpendicular to a side wall edge of the rectangular nozzle opening.

7. An accessory cleaning tool according to claim 6 wherein the fluid outlet is positioned relative to the tubular body portion to provide the fan shaped solution spray immediately adjacent to one end of the nozzle opening.

8. An accessory cleaning tool according to claim 1 wherein the top and bottom walls are substantially parallel to one another.

9. An accessory cleaning tool according to claim 1 wherein the cleaning tool further comprises a longitudinal axis and the nozzle opening lies along a plane intersecting the longitudinal axis at an acute angle.

10. An accessory cleaning tool according to claim 1 wherein the tubular shaped body portion, tapered body portion and spray nozzle are integrally molded as a unitary article.

11. In an improved water extraction cleaning machine comprising a source of cleaning solution, a pump for pressurizing said cleaning solution, a vacuum motor for creating a working airflow, a reservoir for receiving the working airflow and the used cleaning solution, dirt and dust entrained therein, an accessory vacuum hose having a first end in fluid communication with the reservoir and vacuum motor, a solution conduit having a first end in fluid communication with the pump, the improvement comprising:

an accessory cleaning tool comprising;

a hollow, tubular body portion having a prescribed diameter and a working air passageway formed therein;

a tapered body portion extending from one end of the tubular body portion, the tapered body portion comprising;

a pair of opposed side walls extending from said one end of the tubular body portion to terminal edges wherein the side walls gradually converge toward one another with increasing distance from the tubular body portion; and

top and bottom walls extending from said one end of the tubular body portion, terminating at terminal edges and intersecting the opposed side walls, the top and bottom walls being spaced from one another no more than the prescribed diameter of the tubular body portion and, in conjunction with the opposed side walls, defining a working air passageway which is fluidly connected to the working air passageway of the tubular body portion;

a nozzle opening defined by the terminal edges of the top, bottom and opposed side walls and fluidly opening into the working air passageway of the tubular body portion; and

a spray nozzle provided on one of the tubular body portion and tapered body portion and being adapted to be fluidly connected to the solution conduit of the water extraction cleaning machine and to direct a spray of cleaning solution onto a surface to be cleaned.

12. An improved water extraction cleaning machine according to claim 11 wherein the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially circular in cross section so that pressurized fluid supplied by the pump and exiting the fluid outlet of the nozzle body creates a focused, circular spray pattern.

13. An improved water extraction cleaning machine according to claim 12 wherein the fluid outlet is positioned relative to the tubular body portion to provide the focused, circular solution spray pattern at a point immediately adjacent to the nozzle opening.

14. An improved water extraction cleaning machine according to claim 11 wherein the terminal edges of the opposed side walls are longer than the terminal edges of the top and bottom walls so that the nozzle opening of the tubular body portion is substantially rectangular in cross section and the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially rectangular in cross section and positioned with respect to the tubular body portion so that pressurized fluid exiting the fluid outlet creates a fan shaped pattern having a longitudinal axis which is substantially parallel to and aligned with a longitudinal axis of the rectangular nozzle opening.

15. An improved water extraction cleaning machine according to claim 14 wherein the fluid outlet is positioned to provide the solution spray at a point immediately adjacent to one end of the nozzle opening.

16. An improved water extraction cleaning machine according to claim 11 wherein the terminal edges of the opposed side walls are longer than the terminal edges of the top and bottom walls so that the nozzle opening of the tubular body portion is substantially rectangular in cross section and the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially rectangular in cross section and positioned with respect to the tubular body portion so that pressurized fluid exiting the fluid outlet creates a fan shaped pattern having a longitudinal axis which is substantially perpendicular to and spaced from a side wall edge of the rectangular nozzle opening.

17. An improved water extraction cleaning machine according to claim 11 wherein the cleaning tool further comprises a longitudinal axis and the nozzle opening lies along a plane intersecting the longitudinal axis at an acute angle.

18. An improved water extraction cleaning machine according to claim 11 wherein the tubular shaped body portion, tapered body portion and spray nozzle are integrally molded as a unitary article.

19. An accessory cleaning tool adapted to be used with a water extraction cleaning machine having a vacuum conduit and a solution conduit extending therefrom, the accessory cleaning tool comprising:

a hollow body portion having a working air passageway formed therein and a longitudinal axis;

a tapered body portion extending from one end of the hollow body portion and having a working air passageway formed therein terminating at a nozzle opening, wherein the working air passageways of the hollow and tapered body portions are adapted to be fluidly connected to the vacuum conduit and the longitudinal axis of the hollow body portion passes through the nozzle opening; and

a spray nozzle provided on one of the hollow tool body portion and tapered body portion and being adapted to be fluidly connected to the solution conduit of the water extraction cleaning machine and to direct a spray of cleaning solution onto a surface to be cleaned.

21. An accessory cleaning tool according to claim 19 wherein the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially circular in cross section and several times smaller than the fluid inlet so that pressurized fluid exiting the fluid outlet of the nozzle body creates a focused, circular spray pattern.

22. An accessory cleaning tool according to claim 21 wherein the fluid outlet is positioned relative to the hollow tool body portion to provide the focused, circular solution spray pattern at a point immediately adjacent to the nozzle opening.

23. An accessory cleaning tool according to claim 19 wherein the terminal edges of the opposed side walls are longer than the terminal edges of the top and bottom walls so that the nozzle opening of the hollow tool body portion is substantially rectangular in cross section and the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially rectangular in cross section and positioned with respect to the hollow tool body portion so that pressurized fluid exiting the fluid outlet creates a fan shaped pattern having a longitudinal axis which is substantially parallel to and aligned with a longitudinal axis of the rectangular nozzle opening.

24. An accessory cleaning tool according to claim 23 wherein the fluid outlet is positioned to provide the solution spray at a point immediately adjacent to one end of the nozzle opening.

25. An accessory cleaning tool according to claim 19 wherein the terminal edges of the opposed side walls are longer than the terminal edges of the top and bottom walls so that the nozzle opening of the hollow tool body portion is substantially rectangular in cross section and the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially rectangular in cross section and positioned with respect to the hollow tool body portion so that pressurized fluid exiting the fluid outlet creates a fan shaped pattern having a longitudinal axis which is substantially perpendicular to a side wall edge of the rectangular nozzle opening.

26. An accessory cleaning tool according to claim 25 wherein the fluid outlet is positioned relative to the hollow tool body portion to provide the fan shaped solution spray immediately adjacent to one end of the nozzle opening.

27. An accessory cleaning tool according to claim 19 wherein the top and bottom walls are substantially parallel to one another.

28. An accessory cleaning tool according to claim 19 wherein the cleaning tool further comprises a longitudinal axis and the nozzle opening lies along a plane intersecting the longitudinal axis at an acute angle.

29. An accessory cleaning tool according to claim 19 wherein the hollow tool body portion, tapered body portion and spray nozzle are integrally molded as a unitary article.

20. In an improved water extraction cleaning machine comprising a source of cleaning solution, a pump for pressurizing said cleaning solution, a vacuum motor for creating a working airflow, a reservoir for receiving the working airflow and the used cleaning solution, dirt and dust entrained therein, an accessory vacuum hose having a first end in fluid communication with the reservoir and vacuum motor, and a solution conduit having a first end in fluid communication with the pump, the improvement comprising:

an accessory cleaning tool comprising;

a hollow body portion having a working air passageway formed therein and having a longitudinal axis;

a tapered body portion extending from one end of the hollow tool body portion and having a working air passageway terminating at a nozzle opening wherein the longitudinal axis of the hollow body portion passes through the nozzle opening and the working air passageways of hollow and tapered body portions are adapted to be fluidly connected to the vacuum motor; and

a spray nozzle provided on one of the tubular body portion and tapered body portion and being adapted to be fluidly connected to the solution conduit of the water extraction cleaning machine and to direct a spray of cleaning solution onto a surface to be cleaned.

30. An improved water extraction cleaning machine according to claim 20 wherein the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially circular in cross section so that pressurized fluid supplied by the pump and exiting the fluid outlet of the nozzle body creates a focused, circular spray pattern.

31. An improved water extraction cleaning machine according to claim 30 wherein the fluid outlet is positioned relative to the hollow tool body portion to provide the focused, circular solution spray pattern at a point immediately adjacent to the nozzle opening.

32. An improved water extraction cleaning machine according to claim 20 wherein the terminal edges of the opposed side walls are longer than the terminal edges of the top and bottom walls so that the nozzle opening of the hollow tool body portion is substantially rectangular in cross section and the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially rectangular in cross section and positioned with respect to the hollow tool body portion so that pressurized fluid exiting the fluid outlet creates a fan shaped pattern having a longitudinal axis which is substantially parallel to and aligned with a longitudinal axis of the rectangular nozzle opening.

33. An improved water extraction cleaning machine according to claim 32 wherein the fluid outlet is positioned to provide the solution spray at a point immediately adjacent to one end of the nozzle opening.

34. An improved water extraction cleaning machine according to claim 20 wherein the terminal edges of the opposed side walls are longer than the terminal edges of the top and bottom walls so that the nozzle opening of the hollow tool body portion is substantially rectangular in cross section and the spray nozzle comprises a hollow nozzle body having a fluid inlet and outlet formed therein, the fluid outlet being substantially rectangular in cross section and positioned with respect to the hollow tool body portion so that pressurized fluid exiting the fluid outlet creates a fan shaped pattern having a longitudinal axis which is substantially perpendicular to and spaced from a side wall edge of the rectangular nozzle opening.

35. An improved water extraction cleaning machine according to claim 20 wherein the cleaning tool further comprises a longitudinal axis and the nozzle opening lies along a plane intersecting the longitudinal axis at an acute angle.

36. An improved water extraction cleaning machine according to claim 20 wherein the hollow tool body portion, tapered body portion and spray nozzle are integrally molded as a unitary article.