Article including segment which is elastically shirrable...

Details Article including segment which is elastically shirrable... Article including segment which is elastically shirrable...

A - Human Necessities

41

B

2/132, 223/6, 2/

A41B 9/14 (2006.01) A41F 9/02 (2006.01) A61F 13/15 (2006.01) B29C 61/06 (2006.01)

Patent

CA 1286857

ARTICLE INCLUDING SEGMENT WHICH IS ELASTICALLY SHIRRABLE AFTER MANUFACTURE ABSTRACT An article including at least one segment which is capable of being elastically shirred along at least a portion of its length subsequent to manufacture of the article, preferably by mechanical manipulation of a predetermined portion of the elastically shirrable segment. The predetermined mechanically manipulatable portion of the elastically shirrable segment preferably comprises an elastomeric member which is maintained in a prestretched and tensioned condition in the desired direction of shirring. The prestretched and tensioned elastomeric member is also secured in fixed relation to at least one rigidifying member to form a composite structure which is strong enough to resist collapse in a direction parallel to the tensile forces acting upon the prestretched and tensioned elastomeric member prior to mechanical manipulation of the composite structure. The article is elastically shirred by mechanically manipulating the predetermined portion of the shirrable segment until movement of the prestretched and tensioned elastomeric member relative to the rigidifying member is effected. Elastically shirrable segments of the present invention are particularly well suited to high speed article manufacturing operations.

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