Interference No. 103,036
Concerning Figure 10, the Burroughs et al.
specification, column 8, line 26 to column 9, line 3, reads as
follows:
Another embodiment of the battery-strength
indicator device of the present invention is shown in
FIG. 10. The indicator device 10D is a strip like
device having first and second superimposed layers 30
and 32 which are attached together in the same manner
as strips 30 and 32 in FIG. 3. At least one of the
strips is transparent. Conductive layers 64 are
sandwiched between the first and second layers. The
conductive layer is reduced to a small cross-section
65 in the indicator zone 66. Within the indicator
zone, the conductive layer is covered with a small
amount of a pyrotechnic chemical 68 sensitive to
heat. Surrounding the pyrotechnic chemical is a
color indicating, heat-sensitive material 70 which
will undergo a visible color change, either permanent
or temporary, when the material is heated to at least
a predetermined temperature. This battery-strength
indicator device is a one-shot device; the
pyrotechnic chemical will only decompose or react
once. The pyrotechnic chemical undergoes rapid
decomposition when it is heated to a predetermined
temperature. The resistance of the conductive layer
in the reduced cross-sectional area 5 is selected
such that current flow at a minimum predetermined
voltage through the conductive layer will raise the
area to a predetermined temperature which will cause
the pyrotechnic chemically to decompose or otherwise
react. The pyrotechnic chemical in turn will raise
the temperature of the color-indicating, heat
sensitive material to the predetermined temperature
for color change. [Emphasis added.]
-37-
Page: Previous 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Next
Last modified: November 3, 2007