Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Woven fabric – Including strand which is of specific structural definition
Reexamination Certificate
2007-04-11
2009-12-29
Chriss, Jennifer A (Department: 1794)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Woven fabric
Including strand which is of specific structural definition
C442S189000, C442S334000, C442S353000, C428S375000, C428S377000, C405S036000, C405S043000, C405S045000, C405S052000, C405S302400, C405S302600, C405S302700, C047S079000, C047S081000, C057S210000, C057S224000, C057S235000
Reexamination Certificate
active
07638445
ABSTRACT:
This invention generally relates to the production of a composite yarn or non-woven strand wherein a core of super absorbent fibers or polymers (SAP's) having a swell factor of approximately 25% and greater are encapsulated by a nonwoven membrane of defined porosity. The membrane is then sealed in a fashion to generally deter or prevent the SAP material from migrating out of the core as water is freely absorbed and desorbed from the composite yarn structure. The strands of yarns or strips of non-woven material are subsequently constructed into an open or unorientated fabric formation. When used as a subterranean fabric, structure or material, the resultant fabric structure retains moisture while permitting normal root growth and allowing excess water to pass through and beneath the fabric while facilitating movement of water from lower levels to the surface.
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Chriss Jennifer A
Womble Carlyle Sandridge & Rice PLLC
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