IP Library Granted Patent US 7,288,308
Granted Patent B2
US 7,288,308 · App. 10/840,155 · Granted Oct 30, 2007

Floor covering of an elastomer material having a textured surface

Assignee: Carl Freudenberg KG
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Quick Facts
Patent No.
US 7,288,308
App. No.
10/840,155
Granted
Oct 30, 2007
Kind
B2
Abstract

A floor covering of an elastomer material having a textured surface having a plurality of unevenly distributed reliefs, which partially overlap one another and are of a rectangular or square shape having rounded corners and extents of between 1.2 and 6 mm, the height of the reliefs being between 0.01 mm and 0.1 mm.

Claims (13)

1. A floor covering, comprising:

an elastomer material having a textured surface including a plurality of unevenly distributed elevations,

wherein each of the plurality of elevations partially overlap one another and have a rectangular shape with rounded corners, and

wherein the elevations have edge lengths of between 1.2 mm and 6 mm and heights of between 0.01 mm and 0.1 mm.

2. The floor covering as recited in claim 1 , wherein the edge lengths are between 1.3 and 3.6 mm, and the heights are between 0.02 and 0.05 mm.

3. The floor covering as recited in claim 1 , wherein each of the pluality of elevations is overlapped by not more than two other of the plurality of elevations.

4. The floor covering as recited in claim 1 , wherein the rectangular shapes of the elevations vary.

5. The floor covering as recited in claim 1 , wherein the heights of the elevations conform to one another.

6. The floor covering as recited in claim 1 , wherein the edge lengths vary.

7. The floor covering as recited in claim 1 , wherein the elastomer material is made up of individual, repeating surface area units.

8. The floor covering as recited in claim 1 , wherein the elastomer material is a single-layer material.

9. The floor covering as recited in claim 1 , wherein the elastomer material has a thickness of 2 mm to 5 mm.

10. The floor covering as recited in claim 1 , wherein the elastomer material has a thickness of 2.5 mm to 4 mm.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Jul 21, 2015
From: PORTIGON AG (F/K/A WESTLB AG)
To: NORA SYSTEMS GMBH
Reel/Frame 036140/0673 →
RELEASE OF SECURITY INTEREST Recorded Jul 21, 2015
From: PORTIGON AG (F/K/A WESTLB AG)
To: NORA SYSTEMS GMBH
Reel/Frame 036141/0238 →
CORRECTIVE SECURITY AGREEMENT TO CORRECT THE ASSIGNEE'S NAME. THE PREVIOUS SECURITY AGREEMENT WAS RECORDED ON REEL 021709 AND FRAME 0177 Recorded Oct 23, 2008
From: NORA SYSTEMS GMBH
To: WESTLB AG
Reel/Frame 021719/0784 →
SECURITY AGREEMENT Recorded Oct 21, 2008
From: NORA SYSTEMS GMBH
To: WESTLAB AG
Reel/Frame 021709/0177 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 6, 2008
From: CARL FREUDENBERG KG
To: NORA SYSTEMS GMBH
Reel/Frame 020468/0478 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2004
From: GRAAB, GERHARD; BUTSCHER, ALFONS; SPISSINGER, PETER
To: CARL FREUDENBERG KG
Reel/Frame 015590/0428 →
Priority Claims (1)
DE 103 20 811 · May 8, 2003 · national
Continuity (1)
Related Publication 20040226244A1 · Nov 18, 2004