Double-sided buffing pads with intertwined seams

Patent metadata

Field	Value
Publication number	US-10160097-B2
Application number	US-201515114227-A
Country	US
Kind code	B2
Filing date	Jan 29, 2015
Priority date	Feb 4, 2014
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

Provided are buffing pads that have intertwined seams such that any hard or unyielding edges are covered and not exposed during a buffing or polishing process. A double-sided buffing pad for polishing surfaces comprises a backing plate; two fibrous buffing media with filaments of textiles extending therefrom that are affixed one media to each face of the backing plate; and a seam that is intertwined by a portion of the filaments from each media are intertwined. The filaments may be intertwined by needle-tacking, air entanglement, or hydro-entanglement.

First claim

What is claimed is:

1. A double-sided buffing pad for polishing surfaces comprising:
a backing plate;
two fibrous buffing media, each comprising a base structure and filaments of textiles extending therefrom, wherein one media is affixed to each face of the backing plate; and
a seam comprising intertwined filaments from both media.

2. The double-sided buffing pad of claim 1 , wherein the filaments are intertwined by needle-tacking, air entanglement, or hydro-entanglement.

3. The double-sided buffing pad of claim 1 , wherein the seam covers edges of the buffing media.

4. The double-sided buffing pad of claim 1 , wherein the seam is effective to inhibit exposure of edges of the fibrous buffing media during use.

5. The double-sided buffing pad of claim 1 , wherein the fibrous buffing media comprise knitted staple fibers such that the filaments of textiles extend from an integrally-knitted base structure.

6. The double-sided buffing pad of claim 1 , wherein the fibrous buffing media comprise fibers tufted into a scrim from which the filaments of textiles extend.

7. The double-sided buffing pad of claim 1 , wherein the textiles comprise wool, acrylic, rayon, nylon, polyester, mohair, and/or cotton.

8. The double-sided buffing pad of claim 1 further comprising a central opening defined by a hub that operatively attaches to a rotary tool upon assembly.

9. The double-sided buffing pad of claim 8 further comprising two blocks of material located between the buffing media and the hub, wherein the blocks of material each have an aperture therethrough in alignment with the central opening.

10. A method of polishing a surface of a substrate, the method comprising:
obtaining the double-sided buffing pad of claim 1 ; and
contacting the surface with a surface of the double-sided buffing pad.

11. A method of making a double-sided buffing pad for polishing surfaces, the method comprising:
affixing two fibrous buffing media, each comprising a base structure and filaments of textiles extending therefrom, to a backing plate, where one media is affixed to each face of the backing plate; and
forming a seam by intertwining a portion of the filaments of textiles from each media.

12. The method of claim 11 , wherein the filaments are intertwined by needle-tacking, air entanglement, or hydro-entanglement.

13. The method of claim 11 further comprising combing the seam.

Assignees

• 3M Innovative Properties Co

Inventors

• Krause Aaron C
• Titovs Aleksandrs

Classifications

• B24D13/12

  comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex · CPC title

• B24D11/003

  without embedded abrasive particles (B24D11/005 takes precedence) · CPC title

• B24D13/147 Primary

  comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material · CPC title

• B24D18/009

  Tools not otherwise provided for · CPC title

• B24D13/16 Primary

  comprising pleated flaps or strips · CPC title