| US 7,523,532 B2 | ||
| Non-woven self-wrapping acoustic sleeve and method of construction thereof | ||
| Hiroki Yamaguchi, Sagamihara/Kanagawa (Japan); Tomonori Inamura, Machida (Japan); and Koushiro Hashimoto, Aisugi (Japan) | ||
| Assigned to Federal Mogul World Wide, Inc., Southfield, Mich. (US) | ||
| Filed on Apr. 09, 2007, as Appl. No. 11/697,836. | ||
| Claims priority of provisional application 60/790733, filed on Apr. 10, 2006. | ||
| Prior Publication US 2008/0006432 A1, Jan. 10, 2008 | ||
| Int. Cl. D04H 1/46 (2006.01) | ||
| U.S. Cl. 28—110 [28/112; 28/142; 28/122] | 15 Claims |
| 1. A method of constructing a self-wrapping sleeve used to route and protect elongate members and to prevent noise generation
from the elongate members, the method comprising the steps of:
providing a sheet of non-woven engineered material having a predetermined initial thickness;
needlefelting the sheet to a predetermined depth;
forming the needlefelted sheet into a tubular shape with opposite sides of the sheet being overlapped with one another; and
heat-setting the sheet to remain biased in said tubular shape with the opposite sides remaining in detached and readily separable
relation with one another under an externally applied force, wherein the opposite sides automatically return substantially
to their biased overlapping relation upon releasing the externally applied force.
|