Flexible, open-pored cleaning body

• US 5,971,841 A
• Filed: 11/04/1997
• Issued: 10/26/1999
• Est. Priority Date: 05/18/1996
• Status: Expired due to Term

• Current Assignee: Firma Carl Freudenberg
• Original Assignee: Firma Carl Freudenberg
• Inventors: Tintelnot, Carl-Uwe
• Primary Examiner(s): Scherbel, David A.
• Assistant Examiner(s): Banks, Derris Holt
• Application Number:
  US08/964,300
• Time in Patent Office: 721 Days
• Field of Search: 451/28, 451/103, 451/526, 451/527, 451/528, 451/529, 451/530, 451/532, 451/533, 451/534, 451/539, 451/538, 451/548, 451/921, 451/913, 15/229.11, 15/230, 51/295, 51/395, 51/298 R
• US Class Current: 451/526
• CPC Class Codes: A47L 13/16 Cloths; Pads; Sponges metal scraping sponges A47L13/07
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: B26D 3/281 the work being simultaneously deformed by the application of pressure to obtain profiled workpieces
• CPC Class Codes: B29C 44/5654 Subdividing foamed articles to obtain particular surface properties, e.g. on multiple modules
• CPC Class Codes: C11D 17/049 Cleaning or scouring pads; Wipes

Abstract

A flexible, open-pored cleaning body having at least one scouring surface (2) provided in at least one subregion with continuously formed, raised projecting ridges (3), wherein the ridges (3) have regions C,D of different heights in the direction of their extension.

Claims

1. A flexible open-pored cleaning body, comprising:

at least one scouring surface; and

a plurality of continuously formed and raised projected ridges provided with the at least one scouring surface in at least one subregion, the projected ridges disposed on a particular surface of the cleaning body,

wherein, in a first region of the cleaning body, a particular ridge of the projected ridges has a first length which extends from the particular surface to a first peak of the particular ridge,

wherein, in a second region of the cleaning body, the particular ridge has a second length which extends from the particular surface to a second peak of the particular ridge, and

wherein the first length is different from the second length.

2. The cleaning body according to claim 1, wherein one of the first and second regions follows another one of the first and second regions in a regularly recurring manner.

3. The cleaning body according claim 2, wherein the at least one scouring surface includes a flexible coating which improves a resistance to an abrasion.

4. The cleaning body according to claim 3, wherein the flexible coating is formed in a continuous manner.

5. The cleaning body according to claim 3, wherein the at least one subregion includes a plurality of subregions, and wherein the flexible coating has substantially same thickness in the plurality of subregions.

6. The cleaning body according to claim 3, wherein the flexible coating is composed of an elastomeric polyurethane material.

7. The cleaning body according to claim 3, wherein the flexible coating is applied to the at least one scouring surface in a liquid state, the flexible coating being subsequently hardened.

8. The cleaning body according claim 3, wherein particles of a scouring agent are embedded in the flexible coating.

9. The cleaning body according to claim 3, wherein the flexible coating is permeable to liquids.

10. The cleaning body according to claim 3, wherein the flexible coating is applied to the at least one scouring surface by an elastic deformation of the cleaning body using a roll mill, the coating being subsequently hardened.

11. The cleaning body according to claim 1, wherein the first and second regions blend uniformly into one other.

12. The cleaning body according to claim 1, wherein the first and second regions follow one other in a sinusoidal manner.

13. The cleaning body according to claim 1, wherein when viewed in a transverse direction, the projected ridges are delimited by inclined surfaces.

14. The cleaning body according to claim 13, wherein when viewed in a transverse direction, the at least one souring surface has a curvature.

15. The cleaning body according to claim 14, wherein the curvature has a sinusoidal profile.

16. The cleaning body according to claim 1, wherein a first longitudinal direction of the ridges is arranged obliquely at least with respect to a second longitudinal direction of the cleaning body.

17. The cleaning body according to claim 1, wherein the first and second peaks are convex with respect to the particular surface.

18. A flexible open-pored cleaning body comprising:

at least one scouring surface; and

a plurality of continuously formed and raised projected ridges provided with the at least one scouring surface in at least one subregion, the projected ridges including a first region having a first height and a second region having a second height, the first and second regions extending in a particular direction in a direction of an extension of the projected ridges, the first height being different from the second height, wherein one of the projected ridges crosses another one of the projected regions.

19. A flexible open-pored cleaning body comprising:

at least one scouring surface; and

a plurality of continuously formed and raised projected ridges provided with the at least one scouring surface in at least one subregion, the projected ridges including a first region having a first height and a second region having a second height, the first and second regions extending in a particular direction in a direction of an extension of the projected ridges, the first height being different from the second height, wherein the first height is greater than the second height, and wherein a ratio of a distance between midpoints of adjacent ridges of the projected ridges to the first height is approximately 4 mm to 12 mm.

20. A flexible open-pored cleaning body comprising:

at least one scouring surface; and

a plurality of continuously formed and raised projected ridges provided with the at least one scouring surface in at least one subregion, the projected ridges including a first region having a first height and a second region having a second height, the first and second regions extending in a particular direction in a direction of an extension of the projected ridges, the first height being different from the second height, wherein the first height is greater than the second height, and wherein a ratio of distances between opposite midpoints of adjacent ridges of the projected ridges and the first height is approximately 6 mm to 9 mm.

21. A flexible open-pored cleaning body, comprising:

at least one scouring surface; and

a plurality of continuously formed and raised projected ridges provided with the at least one scouring surface in at least one subregion,

wherein, in a first region of the cleaning body, a particular ridge of the projected ridges is separated from a first ridge of the projected ridges via a first groove,

wherein, in a second region of the cleaning body, a particular ridge of the projected ridges is separated from a second ridge of the projected ridges via a second groove,

wherein a peak of the particular ridge extends at a first length from a first bottom portion of the first groove and at a second length from a second bottom portion of the second groove, and

wherein the first length is different from the second length.