Patent ID: 9334591
Filing Date: 2016-05-10
CPC Classification: D04H,H01M,Y02E,Y10T

Claim Text:
1. A nonwoven battery cover, comprising: a plurality of separate, circumferentially continuous nonwoven walls arranged generally concentrically with one another and partially detached from one another, each of said nonwoven walls having at least one thermally bonded seam bonding opposite edges to one another, each of said nonwoven walls being constructed from a web of mixed fibers bonded with one another via a heat-meltable material, at least one of said nonwoven walls including green material blended with said heat-meltable material; and wherein each of said nonwoven walls has at least one hinge extending between opposite ends, each of said nonwoven walls having a first thickness and said at least one hinge having a second thickness that is less than said first thickness, wherein said plurality of nonwoven walls are bonded to one another by a welded bond joint formed across said at least one hinge.