Interference No. 103,036
and column 12, line 63 are electrically
conductive. The heat sensitive color
indicating material [70] is above the
conductive layer reduced area in the sealed
chamber in accordance with the top plan view
shown in Fig. 10. Pyrotechnic chemical 68 is
not shown in accordance with the alternate
embodiment disclosed at column 8, lines 62-
66. The current and heat flow as shown in
Fig. P-1 above are disclosed at column 8,
lines 45-54 and 62-66.
21. In my opinion, the current and heat flow
model shown in Fig. P-1 is the necessary and only
reasonable construction which one of ordinary skill in
the battery art would give to this embodiment of the
strength or voltage indicator disclosed in the
Burroughs '544 patent. As I believe would be
recognized by one of ordinary skill in the battery art,
nonconductive layers 30 and 32 would be inherently
recognized as having both sufficient thermal
nonconductivity and sufficient electrical
nonconductivity to permit the heat and current flow to
make the device operable, since the absence of either
would make the device inoperable. Further, in my
opinion, the natural result flowing from this
embodiment of the strength or voltage indicator
disclosed in the Burroughs '544 patent, which one of
ordinary skill in the battery art would recognize, is
that the conductive layer has sufficient thermal
insulating means under its surface to overcome heat
sinking when the device is in contact with an
electrically conductive portion of the battery housing.
22. Consistent with the above, nowhere in the
Burroughs '544 patent is the term "nonconductive layer"
specifically limited to electrically nonconductive
materials, nor is it disclosed as being thermally
conductive. It is my opinion that a person of ordinary
-46-
Page: Previous 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Next
Last modified: November 3, 2007