IP Library Granted Patent US 6,939,598
Granted Patent B2
US 6,939,598 · App. 09/921,660 · Granted Sep 6, 2005

Floor covering made of an elastomer material having a relief-type patterned surface

Assignee: Firma Carl Freudenberg
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Quick Facts
Patent No.
US 6,939,598
App. No.
09/921,660
Granted
Sep 6, 2005
Kind
B2
Abstract

A floor covering made of an elastomer material having a relief-type patterned surface ( 2 ) which is provided with irregularly distributed indentations ( 3 ), which have an elongated shape, which partially contact and/or intersect each other, and which have a depth (T) of 0.02 mm to 0.2 mm, at a width (B) of 0.2 mm to 2.5 mm and a length (L) of 5 mm to 50 mm.

Claims (15)

1. A floor covering comprising: an elastomer material having a relief-type patterned surface, wherein the surface ( 2 ) is provided with irregularly distributed indentions ( 3 ), which have an elongated shape, which partially contact or intersect each other, and which have a depth (T) of 0.02 mm to 0.2 mm, at a width (B) of 0.2 mm to 2.5 mm and a length (L) of 5 mm to 50 mm wherein at least one end ( 6 ) of the indentation ( 3 ) is configured so as to run to a point, wherein the indentations are essentially straight and wherein the relief-type patterned surface minimizes roll resistance, wherein each indentation has a different shape from every other indentation.

2. The floor covering according to claim 1 , wherein the indentations ( 3 ) have a depth (T) of 0.025 mm to 0.05 mm, at a width (B) of 0.4 mm to 1.3 mm and a length (L) of 6 mm to 40 mm.

3. The floor covering according to claim 1 , wherein each indentation ( 3 ) intersects at least two other indentations ( 3 ).

4. The floor covering according to claim 2 , wherein each indentation ( 3 ) intersects at least two other indentations ( 3 ).

5. The floor covering according to claim 1 , wherein the surface percentage of the indentations ( 3 ) is 5% to 50% of the total surface of the floor covering ( 1 ).

6. The floor covering according to claim 5 , wherein the surface percentage of the indentations ( 3 )is 20% to 40% of the total surface of the floor covering ( 1 ).

7. The floor covering according to claim 1 , wherein the indentations ( 3 ) have the same depth (T) over their entire length (L).

8. The floor covering according to claim 1 , wherein the remaining surface ( 2 ) of the floor covering ( 1 ) is essentially planer.

9. The floor covering according to claim 1 , wherein the width (B) of the individual indentations ( 3 ) varies.

10. The floor covering according to claim 1 , wherein the length (L) of the individual indentations ( 3 ) varies.

11. The floor covering according to claim 1 , wherein at least one of the lateral border edges ( 4 ) of the indentations ( 3 ) at at least one location widens, to the outside, or narrows, to the inside.

12. The floor covering according to claim 1 , wherein the floor covering ( 1 ) is assembled from individual, repeating surface units.

13. The floor covering according to claim 1 , wherein the floor covering ( 1 ) is made up of a single-layer material.

14. The floor covering according to claim 1 , wherein the floor covering ( 1 ) has a thickness (S) of 2 mm to 5 mm.

15. The floor covering according to claim 14 , wherein the floor covering ( 1 ) has a thickness (S) of 2.5 mm to 4 mm.

Assignments (5)
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 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 020571 FRAME 0682. ASSIGNOR(S) HEREBY CONFIRMS THE CORRECT NAME OF THE ASSIGNEE IS NORA SYSTEMS GMBH. Recorded Oct 7, 2008
From: CARL FREUDENBERG KG
To: NORA SYSTEMS GMBH
Reel/Frame 021658/0451 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 25, 2008
From: CARL FREUDENBERG KG (FORMERLY KNOWN AS FIRMA CARL FREUDENBERG)
To: FIRMA NORA SYSTEMS GMBH
Reel/Frame 020571/0682 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 3, 2001
From: HECKEL, KLAUS; BUTSCHER, ALFONS; SPISSINGER, PETER
To: FIRMA CARL FREUDENBERG
Reel/Frame 012061/0468 →
Priority Claims (1)
DE P 100 39 118 · Aug 7, 2000 · national
Continuity (1)
Related Publication 20020037394A1 · Mar 28, 2002