Appeal No. 2005-0117 Page 7
Application No. 09/860,423
These fibers are sometimes referred to as "ultra high molecular weight
polyethylene" within the scope of U.S. Pat. No. 4,413,110. The specification and
teachings of this patent are incorporated by reference. Such a fabric has a high
level of tear-resistance, abrasion resistance, cut-and-stab resistance, and
chemical and cold resistance to improve the strength and durability of the fabric.
In addition, such fabric is about one-third the weight of such conventional fabrics
as vinyl coated nylon. This results in fuel savings of about $30 per year for each
pound of fabric used.
Holland teaches (column 3, lines 16-24) that:
The improved fabric is intended to be used as a fabric to cover cargo
containers, luggage trailers, and truck openings. While the improved fabric can
be used for a variety of purposes, the ensuing description is directed to a fabric
cover for a cargo container.
Accordingly, it is an object of the present invention to provide a durable,
lightweight fabric that has improved tear-strength, cut-and-stab resistance,
abrasion resistance, cold resistance, and chemical resistance.
Holland further teaches (column 6, lines 3-9) that:
The present invention has been described as utilized on a cargo cover 10
for a cargo container 12. The fabric 30 used for cargo cover 10 may also be used
for luggage trailer curtains and truck closure curtains generally covered by fabric
and other uses where a lightweight, tear-resistant, abrasion resistant,
stab-and-cut resistant, chemical resistant, and cold resistant fabric is required.
In the rejection of claim 1, the examiner ascertained (answer, p. 7) that Andrieu
does not disclose the protective cover being made from high performance yarns having
a tensile modulus equal to or greater than 150 grams/denier and a tenacity equal to or
greater than 7 grams/denier, wherein the yarns are cut and tear resistant. The
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