Dust mop with replaceable electrostatically charged dust collector

• US 6,332,234 B1
• Filed: 05/25/2001
• Issued: 12/25/2001
• Est. Priority Date: 02/01/1999
• Status: Active Grant

• Current Assignee: Barbara G. Graham, Katherine L. Kilman, Robert L. Graham
• Original Assignee: Barbara G. Graham, Katherine L. Kilman, Robert L. Graham
• Inventors: Graham, Barbara G., Kilman, Katherine L., Graham, Robert L.
• Primary Examiner(s): Chin, Randall E.
• Application Number:
  US09/866,301
• Publication Number:
  US 20010047559A1
• Time in Patent Office: 214 Days
• Field of Search: 15/15.2, 152/28, 152/31
• US Class Current: 15/228
• CPC Class Codes: A47L 13/20 Mops
• CPC Class Codes: A47L 13/40 Cleaning implements actuated by electrostatic attraction; Devices for cleaning same; Magnetic cleaning implements

Abstract

A dust mop features a dust collector layer made of electrostatically charged nonwoven fabric. The electrostatic charge (a) enables the dust collector to be detachably mounted to the mop head by electrostatic cling; and (b) improves the dust collecting ability of the dust collector.

Claims

1. A dust mop comprising

(a) a handle;

(b) a mop head secured to one end of the handle and having a downwardly facing surface; and

(c) an electrostatically charged thermoplastic nonwoven fabric detachably mounted on the downwardly-facing surface, said electrostatically charged nonwoven fabric having a persistent electrostatic charge imparted thereon by passing the fabric of fibers thereof through an electric field.

2. The mop of claim 1 wherein the head is rigid.

3. The mop of claim 2 wherein the head further comprises a padding layer secured to the downwardly facing surface and means for detachably securing the nonwoven fabric to the padding layer, the padding layer being deformable to conform to the surface being mopped.

4. The mop of claim 3 wherein the padding layer is selected from the group consisting of foam, sponge, batting, and foamed plastics.

5. The mop of claim 3 wherein the means for detachably securing the nonwoven fabric to the padding layer includes connectors.

6. The mop of claim 1 wherein the surface charge on the nonwoven fabric is between −

2500 to +2500 v.

7. The mop of claim 1 wherein the nonwoven fabric is selected from the group consisting of meltblown and spunbond fabrics.

8. The mop of claim 7 wherein the fiber size of the nonwoven fabric is between 1 to 50 microns and the fabric has a basis weight between 0.5 to 5 oz/yd².

9. The mop of claim 7 wherein the nonwoven fabric is a meltblown fabric.

10. The mop of claim 7 wherein the nonwoven fabric is a spunbond fabric.

11. The mop of claim 1 wherein the head is pivotally mounted on said one end of the handle.

12. The mop of claim 1 wherein the nonwoven fabric is a meltblown fabric having fibers between 1 to 02 microns and having a basis weight between 0.75 to 5 oz/yd².

13. The mop of claim 1 wherein the nonwoven fabric is made of polypropylene fibers.

14. The mop of claim 1 wherein the electrostatically charged nonwoven fabric has an inner surface in contact with the padding layer and an outer surface exposed for contacting a surface to be mopped.

15. A mop for mopping a floor surface, comprising

(a) an elongate handle;

(b) a rigid head pivotally connected to one end of the handle and having a generally flat downwardly facing surface;

(c) padding material mounted on the head to substantially cover the downwardly facing surface of said head, said padding material being in the form of a layer conformable to the floor surface; and

(d) a disposable dust collector layer detachably mounted on the padding layer, said collector layer comprising an electrostatically charged thermoplastic nonwoven fabric having an inner surface in contact with the padding layer and an outer downwardly layer surface for collecting dust, the nonwoven fabric having fibers between 1 to 50 microns and carrying an electrostatic charge imparted by passing the nonwoven fabric or fibers thereof through an electrostatic field to impart an electrostatic charge thereto.