Appeal No. 1997-1491
Application No. 08/478,167
1. An insulation of low dimensional stability
blanket comprising at least one mineral fiber batt
of low dimensional stability being comprised of a
binderless fibrous material of substantially long
fibers, said batt remaining uncut during its
formation and shaping, said substantially long
fibers enabling said batt to expand and conform its
shape to an area into which said mineral fiber batt
has been installed including abnormal voids in
building spaces.
In the rejection of the appealed claims, the examiner
relies
upon the following references:
Saborsky 2,160,001 May 30, 1939
Irwin et al. (Irwin) 3,338,777 Aug. 29, 1967
Sens 3,546,846 Dec. 15,
1970
Appellants' claimed invention is directed to an
insulation of low dimensional stability comprising mineral
fiber batt of binderless, fibrous material having
substantially long fibers. Independent claims 1 and 16 recite
that the "batt remaining uncut during its formation and
shaping." According to pages 9 and 10 of the present
specification, the advantageous results of appellants'
invention are obtained from a combination of two key features:
(1) binderless insulation that is capable of much greater
2
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