IP Library Granted Patent US 8,776,554
Granted Patent B2
US 8,776,554 · App. 13/682,860 · Granted Jul 15, 2014

Method of processing leather material

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Quick Facts
Patent No.
US 8,776,554
App. No.
13/682,860
Granted
Jul 15, 2014
Kind
B2
Abstract

A method of processing a leather material. The method may include providing a tanned and dried leather material and pre-stretching the leather material after the leather material is dried.

Claims (39)

1. A method of processing a leather material comprising:

providing a tanned leather material;

drying the leather material;

pre-stretching the leather material;

pre-stretching the leather material a second time before cutting the leather material into a set of panels;

cutting the leather material into the set of panels; and

assembling at least some members of the set of panels into a leather article;

wherein the step of pre-stretching the leather material occurs after drying the leather material and before assembling the panels.

2. The method of claim 1 further comprising the step of finishing the leather material after drying the leather material and before cutting the leather material into the set of panels.

3. The method of claim 2 wherein the step of pre-stretching the leather material occurs after finishing the leather material and before cutting the leather material into the set of panels.

4. The method of claim 3 further comprising pre-stretching the leather material a second time before assembling at least some members of the set of panels.

5. The method of claim 2 wherein the step of pre-stretching the leather material occurs before finishing the leather material.

6. The method of claim 5 further comprising pre-stretching the leather material a second time after finishing the leather material and before cutting the leather material.

7. The method of claim 6 further comprising pre-stretching the leather material a third time after cutting the leather material into the set of panels and before assembling at least some members of the set of panels.

8. The method of claim 2 wherein the step of finishing the leather material further comprises coating an exterior surface with polyurethane.

9. The method of claim 2 wherein the step of finishing the leather material further comprises embossing a grain pattern on the leather material.

10. A method of processing a leather material comprising:

providing a tanned leather hide;

drying the hide after tanning;

pre-stretching the hide after the hide is dried;

cutting the hide into first and second panels after pre-stretching the hide;

pre-stretching the hide a second time after cutting the hide into first and second panels; and

stitching the first and second panels together to form a leather article.

11. The method of claim 10 further comprising finishing the hide after pre-stretching the hide and before cutting the hide into first and second panels.

12. The method of claim 10 further comprising pre-stretching the hide a second time after finishing the hide.

13. The method of claim 11 further comprising pre-stretching the hide a third time after cutting the hide into first and second panels.

14. The method of claim 10 further comprising pre-stretching the hide a second time after cutting the hide into first and second panels and before stitching the first and second panels together.

15. A method of processing a leather material comprising:

providing a tanned leather material;

drying the leather material;

pre-stretching the leather material with first and second pairs of rollers such that the first and second pairs of rollers engage the leather material;

cutting the leather material into a set of panels; and

assembling at least some members of set of the panels to form a leather article;

wherein the step of pre-stretching the leather material occurs after drying the leather material and before assembling members of the set of panels.

16. The method of claim 15 wherein the leather material is fed between the first pair of rollers and the second pair of rollers such that the leather material is pre-stretched in a region located between the first and second pair of rollers.

17. The method of claim 15 wherein the second pair of rollers includes a third roller and a fourth roller, wherein the third roller rotates at a higher speed than the fourth roller.

18. The method of claim 15 wherein the second pair of rollers includes a third roller and a fourth roller, wherein the third roller has a larger diameter than the fourth roller and the third and fourth rollers each rotate about an axis of rotation at substantially a same speed.

19. The method of claim 15 wherein the second pair of rollers move away from the first pair of rollers to pre-stretch the leather material.

20. The method of claim 15 wherein the step of pre-stretching the leather material occurs after cutting the leather material into the set of panels.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Feb 5, 2016
From: JPMORGAN CHASE BANK, N.A., AS AGENT
To: LEAR CORPORATION
Reel/Frame 037702/0911 →
SECURITY INTEREST Recorded Mar 20, 2013
From: LEAR CORPORATION
To: JPMORGAN CHASE BANK, N.A., AS AGENT
Reel/Frame 030076/0016 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 21, 2012
From: CHEN, PUSHENG; WELCH, SR., THOMAS A.; PATTERSON, LOUELLA ANN; GALBREATH, ASHFORD ALLEN; SEVERINSKI, PAUL S.
To: LEAR CORPORATION
Reel/Frame 029335/0564 →