Interference No. 103,036
18. Additionally, the portion of
the chamber, cell or bubble below the
conductive layer and the air pocket (see
Sections I.A. and I.F.) are inherently
thermal insulative and independently provide
adequate support to provide adequate support
[sic] for the thermal insulation limitation.
As such, it is the natural result of such
construction that the nonconductive layer (30
or 32) adjacent to the battery housing, along
with any portion of the sealed chamber or
zone 66 beneath the conductive area 65, has
both sufficient electrical insulation to
prevent short circuiting and sufficient
thermal insulation to overcome heat sinking
when the battery strength indicator is in
contact with the battery housing. The
reference to repeated use of this embodiment
of the battery strength indicator at column
9, lines 1-3 also requires that heat sinking
to the battery housing be overcome by the
thermal insulation beneath the conductive
area 65 of layer 64.
19. In connection with the battery
housing, dry cell batteries of the type shown
in Fig. 2 of Burroughs et al. patent and
described elsewhere as nonrechargeable
alkaline batteries (column 11, line 42) or
zinc-carbon batteries (column 12, line 63)
all have electrically conductive housings.
In a case of alkaline dry cells, the side of
the housing is part of the cathode. In the
case of zinc-carbon batteries, the side of
the housing is part of the anode. Thus, I
believe that the Burroughs '544 patent
inherently discloses that the dry cell
battery housing is electrically conductive.
20. Fig. P-1 below is a side
elevational view of a thermal and electrical
model of the heat sensitive battery strength
indicator embodiment shown
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