Method and apparatus for cleaning carpet or the like

• US 5,157,805 A
• Filed: 04/15/1991
• Issued: 10/27/1992
• Est. Priority Date: 04/15/1991
• Status: Expired due to Fees

• Current Assignee: Henry J. Pinter
• Original Assignee: Henry J. Pinter
• Inventors: Pinter, Henry J.
• Primary Examiner(s): MOORE, CHRISTOPHER K
• Application Number:
  US07/684,764
• Time in Patent Office: 561 Days
• Field of Search: 15/321, 15/322
• US Class Current: 15/322
• 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

Abstract

Apparatus for and method of cleaning carpet or the like in conjunction with a vacuum source and a source of pressurized cleaning fluid. The apparatus includes an elongate handle to which is attached a cleaning head. The cleaning head includes a forward wall and a striker plate disposed in generally parallel relationship to form a vacuum chamber. A nozzle assembly for dispensing the pressurized fluid is carried by the cleaning head so as to direct the fluid against the striker plate at a point above the carpet surface. Alternative embodiments include the addition of one or more brushes disposed in front of the striker plate. The method includes so directing the fluid so that it is drawn around the edge of the striker plate, through the pile of the carpet and into the vacuum chamber as the apparatus is moved across the carpet.

Claims

1. Apparatus for use with a source of pressurized cleaning fluid and vacuum for cleaning carpet or the like, comprising:

a) a housing having a forward wall and rearmost wall spaced therefrom to form a vacuum chamber therebetween and each having a lower, projecting edge;

b) a plate secured to the face of said rearmost wall facing away from said forward wall and the vacuum chamber and having a lower, projecting edge; and

c) a fluid dispensing nozzle carried by said housing behind said rearmost wall for directing the fluid dispensed from the source of pressurized fluid to an area on said plate spaced above said lower projecting edge of said plate.

2. The apparatus of claim 1 wherein the angle of said nozzle with respect to said plate is adjustable whereby the cleaning fluid may be directed at selected areas of said plate.

3. The apparatus of claim 1 wherein said lower projecting edge of said plate is rediused.

4. The apparatus of claim 3 wherein a wear plate is removably received on said lower projecting edge of said forward wall of said housing.

5. The apparatus of claim 1 wherein brush means are removably and adjustably secured to said rearmost wall on the face thereof facing away from said forward wall of said housing.

6. The apparatus of claim 5 wherein said lower projecting edge of said rearmost wall is disposed above the lower edge of said front wall of said housing;

and said brush means extend beyond said lower projecting edge of said rearmost wall.

7. The apparatus of claim 1 wherein an elongate handle is secured to said housing.

8. The apparatus of claim 1 wherein said rearmost wall and said forward wall of said housing have upper ends forming a connector for engagement with said handle;

and said rearmost wall includes an elongate, substantially straight portion extending from said lower projecting edge to a convex intermediate section and terminating in a final substantially straight portion.

9. Apparatus for use with a source of pressurized cleaning fluid and vacuum for cleaning carpet and the like, comprising:

a) a housing having a forward wall and a rearmost wall spaced therefrom to form a vacuum chamber therebetween;

b) said forward wall and said rearmost wall each having a lower projecting edge;

c) a plate secured to the face of said rearmost wall facing away from said forward wall and the vacuum chamber in spaced relationship therewith;

d) brush means disposed between said striker plate and said rearmost wall and projecting beyond said lower projecting edge of said rearmost wall; and

e) a fluid dispensing nozzle carried by said housing behind said rearmost wall for directing fluid from the source of pressurized fluid against said plate.

10. The apparatus of claim 9 wherein said brush means are adjustably mounted.

11. The apparatus of claim 9 wherein a spacer block is attached to said rearmost wall;

and said striker plate is attached to said spacer block.

12. The apparatus of claim 11 wherein said spacer block is wedge-shaped in cross-section and has a bottom surface;

and said brush means are releasably secured to said bottom surface.

13. The apparatus of claim 9 wherein said brush means include (one or more) individual brushes.

14. A method of cleaning carpet or the like, comprising the steps of:

a) directing a flow of cleaning fluid against an area of one face of a first plate disposed in close adjacency with the carpet, said area being spaced above the edge of said plate;

b) providing a vacuum between the side of the plate opposite the face thereof against which the flow of cleaning fluid is directed and a substantially parallel second plate; and

c) drawing the cleaning fluid around the edge of the first plate, through the carpet and into the vacuum between the first and second plates as the plates are moved across the carpet.

15. Apparatus for use with a source of pressurized cleaning fluid and vacuum for cleaning carpet or the like, comprising:

a) a housing having a forward wall and rearmost wall spaced therefrom to form a vacuum chamber therebetween and each having a lower, projecting edge;

b) a plate secured to said rearmost wall and having a lower, projecting edge;

c) a fluid dispensing nozzle carried by said housing for directing fluid from the source of pressurized fluid to an area above said lower projecting edge of said plate;

d) brush means removably and adjustably secured to said rearmost wall on the side thereof opposite said forward wall of said housing; and

e) said lower projecting edge of said rearmost wall is disposed above the lower edge of said front wall of said housing; and

said brush means extend beyond said lower projecting edge of said rearmost wall.

16. Apparatus for use with a source of pressurized cleaning fluid and vacuum for cleaning carpet and the like, comprising:

a) a housing having a forward wall and a rearmost wall spaced therefrom to form a vacuum chamber therebetween;

b) said forward wall and said rearmost wall each having a lower projecting edge;

c) a plate secured to said rearmost wall in spaced relationship therewith;

d) brush means disposed between said plate and said rearmost wall and projecting beyond said lower projecting edge of said rearmost wall;

e) a fluid dispensing nozzle carried by said housing for directing fluid from the source of pressurized fluid against said plate; and

f) said brush means being adjustably mounted.

17. The apparatus of claim 16 wherein a spacer block is attached to said rearmost wall;

and said plate is attached to said spacer block.

18. The apparatus of claim 17 wherein said spacer block is wedge-shaped in cross-section and has a bottom surface;

and said brush means are releasably secured to said bottom surface.