Chemistry: electrical current producing apparatus – product – and – With measuring – testing – or indicating means – For charge or liquid level
Patent
1994-11-08
1998-01-20
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
With measuring, testing, or indicating means
For charge or liquid level
324435, H01M 1048
Patent
active
057099626
ABSTRACT:
A tester label for electrochemical cells employing two spaced apart electrically conductive electrochromic electrodes in which an ionically conductive electrolyte is disposed on the electrodes and in the space between the electrodes to produce a two-layer tester for batteries so that when the electrodes are applied to a power source, the electrochromic electrodes will undergo a chemical reaction and exhibit a change of color thereby producing a color contrast between them.
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Eveready Battery Company Inc.
Kalafut Stephen
Welsh Robert W.
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