Grout and surface cleaning apparatus

Abstract

A cleaning apparatus for cleaning grout in tile floors and other surfaces has a proximal end (1) connected to a vacuum source (11) and a high pressure water source (12) activated by a trigger mechanism (13) connected by conduits (6, 8) to a distal end (2) having a cleaning head (7) with nozzle (18) and brush barriers (21, 22) to retain water for conveying by vacuum to the vacuum source.

Claims

1. A grout and surface cleaning apparatus comprising: a head having a distal end, a proximal end, a top, and a mouth wherein a quick-connect water connection extending through the top of the head; said quick-connect water connection being connectable to a handle connected to a pressure washer that provides a flow of water through the handle and the quick-connect water connection and a nozzle connected to the quick-connect water connection and extending into the head wherein water spray from the high pressure nozzle is directed through the open mouth of said head and onto a surface being cleaned; a trigger connected to said handle allows the water spray from the nozzle to be activated and deactivated; said handle being oriented on the top of said head in a position that allows the trigger to be operated while still applying a downward pressure on the head and the surface being cleaned; said proximal end of said head being connected to a vacuum hose; an inlet located in the open mouth of said head that opens to the vacuum hose wherein water and dirt is sucked in through the open mouth of the head and the inlet and vacuum hose; inner brushes arranged in the open mouth of the head around the inlet and the nozzle; a plurality of orifices located inside the open mouth of the head wherein the plurality of orifices are separated from the inlet and the nozzle by the inner brushes; wherein suction is provided to the plurality of orifices by said vacuum hose to collect water and dirt that escapes said inner brushes; outer brushes arranged around a perimeter of the open mouth wherein said plurality of orifices are located between said inner brushes and said outer brushes.

2. The grout and surface cleaning apparatus of claim 1 wherein: said inner brushes and said outer brushes extend outside of the open mouth of the head.

3. The grout and surface cleaning apparatus of claim 1 wherein the head is connected to the vacuum hose via a connection having multiple stepped sections with different circumferences to allow for secure attachment to various sizes of vacuum hose from the vacuum source.

Description

DESCRIPTION OF THE DRAWINGS

(1) In the following detailed description, reference will be made to the attached drawings in which:

(2) FIG. 1 is a perspective view of the grout and surface cleaning apparatus of the present invention in use cleaning a floor surface;

(3) FIG. 2 is a side view of the grout and surface cleaning apparatus of the present invention;

(4) FIG. 3 is a side view of a hand-held surface cleaning apparatus of the present invention;

(5) FIG. 4 is a cross sectional view along lines 4-4 of FIG. 2 of the head of the grout and surface cleaning apparatus of the present invention; and

(6) FIG. 5 is a bottom view of the head showing the mouth of the grout and surface cleaning apparatus of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(7) For purposes of describing the preferred embodiment, the terminology used in reference to the numbered accessories in the drawings is as follows: 1. proximal end 2. distal end 3. high pressure water hose 4. vacuum hose 5. vacuum hose connector 6. high pressure water conduit 7. head 8. vacuum conduit 9. brushes 10. support handle 11. vacuum source 12. high pressure water source 13. trigger mechanism 14. high pressure water connector 15. mouth 16. barrier 17. activation handle 18. nozzle 19. high pressure water quick connection 20. water spray 21. inner brushes 22. outer brushes 23. perimeter of head 24. water suction orifices 25. mouth inlet 26. floor

(8) Discussing the preferred embodiments of the grout and surface cleaning apparatus of the present invention, reference is made to the drawings in FIGS. 1-5. FIG. 1 illustrates the cleaning apparatus as it would appear in use while cleaning a floor 26 and FIG. 2 illustrates a side view of the cleaning apparatus. The proximal end 1 has a handle 17 for holding the cleaner and activating a trigger 13 to allow water from a high pressure water source 12, such as a conventional pressure washer, to enter through hose 3 connected by male and female threads to a connector 14. The proximal end 1 also is connected to a vacuum source 11, which may be a conventional wet/dry vacuum, by a hose attached to a rigid or semi-rigid connector 5 which is preferably stepped or has sections having different circumferences to fit various sizes of vacuum hoses.

(9) The proximal end 1 of the cleaning apparatus is connected to the cleaning distal end 2 by a rigid vacuum conduit 8 and a high pressure water conduit 6. The vacuum conduit 8 attaches to a side of the head and the high pressure conduit 6 attaches to a high pressure water quick connection 19 on a top of the head 7. The mouth 15 of the head can be surrounded by a flexible barrier 16 and a series of brushes 9 to prevent or deter water from being sprayed outside the perimeter of the head 7 so the water can be sucked up by the vacuum and conveyed to the vacuum source.

(10) Referring to FIG. 3, a side view of a hand-held cleaning apparatus of the present invention that could be used for cleaning any flat surface is illustrated. The hand-held cleaning apparatus has the same components as the floor cleaning version illustrated in FIGS. 1 and 2, except for arrangement and location of some components, such as the high pressure water conduit 6 and vacuum conduit 8 are unnecessary as the activation handle 17 is directly connected to the nozzle 18 via a quick-connect high pressure water connection 19, as shown by dashed lines. Thus, the vacuum conduit 8 is removed from the head 7, the connector 5 is removed from the vacuum conduit 8 and the connector 5 is remounted onto the head 7 to achieve this hand-held conversion. Although the head 7 illustrated in FIG. 3 is angularly positioned for cleaning floors or other flat surfaces, the head 7 could be mounted at no angle on the vacuum conduit 8 or have a separate attachment for cleaning corners.

(11) Referring to the FIG. 4, a cross sectional view along lines 4-4 of FIG. 2 of the head 7 of the invention is illustrated. In this view the high pressure water quick connection 19 is shown attached to the nozzle 18. The nozzle 18 may be changeable to vary the pressure and pattern of the water spray 20 hitting a surface being cleaned. The head 7 may have a series of brushes, such as an inner set 21 and outer brushes 22 of varying texture, or rubber, foam or combination thereof, to contain any water from escaping from the perimeter 23 of the head 7. Although brushes as illustrated may be preferred in forming a barrier rubber, foam or a combination thereof may be used to form a barrier against water splash. In addition, a flexible barrier 16 may also surround the perimeter of the mouth 15 to further reduce the likelihood of water escaping outside the perimeter 23 of the head 7.

(12) The final illustration of FIG. 5 illustrates the head 7 from the bottom showing the nozzle 18, inner brushes 21 and outer brushes 22 are arranged around the inlet of the mouth to prevent water from escaping outside the perimeter of the head 23. Orifices 24, which are shown as slots but could be of any shape, are shown between the inner brushes 21 and outer brushes 22 are included to allow the vacuum to suck up any water that may have escaped through the inner brushes 21.

(13) It is to be understood that while a preferred embodiment of the invention is described, it is not to be limited to the specific form or arrangement of parts herein described and shown. It will be apparent to those skilled in the art that various changes may be made without departing from the scope of the invention and the invention is not to be considered limited to what is shown and described in the specification and/or drawings.