Appeal No. 2005-0288 Page 5
Application No. 10/075,786
grams/denier and a tenacity equal to or greater than 7 grams/denier so that the
protective cover is abrasion-resistant, cut-resistant, and tear-resistant.[3]
Andrieu's invention relates to wraparound fabric sleeves of interlaced fibrous
materials, the sleeves being preferably formed by a weaving process. More particularly,
Andrieu's invention relates to wraparound sleeves having a closure device and even
more specifically to wraparound sleeves for the protection of elongated articles, such as
cables wherein the sleeves are intended to provide protection from the effects of
abrasion or heat as well as to maintain the elongated articles in a neatly bundled
arrangement so that they are not damaged by moving machinery parts or the like.
3The appellants' specification (p. 2) teaches that the protective cover is
constructed from a woven fabric formed primarily from high- strength (high
performance) yarns. As used herein, "high-strength yarns'' refers to the entire family of
yarns that have a tensile modulus equal to or greater than 150 grams/denier and a
tenacity equal to or greater than 7 grams/denier. Such high strength yams may be
formed from long chain polyethylene fibers (known as SPECTRA®), aramids such as
KEVLAR® (Dupont), liquid crystal polymers such as VECTRAN® (Hoechst Celanese), or
combinations thereof. The preferred yarn for the fabric is available from suppliers, such
as Allied Signal, under the tradename SPECTRA®. Fabrics woven or knitted from
selected one of these yarns have a high level of tear-resistance, abrasion-resistance,
cut-and-stab resistance, ultraviolet radiation resistance, and resistance to chemicals
and low temperatures. These characteristics improve both the strength and durability of
the fabric. ln addition, fabric so formed is only about one-third the weight of
conventional fabrics like vinyl-coated nylons and polyesters.
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