Appeal No. 1998-1315
Application No. 08/334,751
end adjacent valve (13) and a second end adjacent intake holes
(10), a means for filtering (18a) (col. 4, lines 11-13), means
for oxidating CO to CO2 (19) (col. 3, lines 24-34)
intermediate the means for filtering (18a) and the second end
adjacent intake holes (10), means for reducing the temperature
of the inhaled gases (16) made of glass fibers disposed
intermediate the means for oxidating (19) and the second end
of the housing
Regarding the limitations of claim 7 in this application, Yo
also discloses the multi-stage filtering means comprising a
screen (15a) disposed within the housing (11) intermediate the
first end adjacent valve (13) and the means for filtering
(18a). Regarding the means for reducing the temperature of
the inhaled gases of claim 6 of the present application, US
patent No. 4,754,7514 to Mausteller teaches that in his
respirator, the filtering canister includes a first mat filter
(20) made of fiber glass material that is capable of heat
transfer (col. 3, line 24-25; col. 3, lines 39-41; col. 4,
line 65- col. 5, line 1). Glass fiber is specifically stated
as being used as the filtering material 16 in Yo (col. 3,
4 The patent to Mausteller is prior art of record.
15
Page: Previous 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Next
Last modified: November 3, 2007