Duracell power Check feature?
Duracell power Check feature?
(OP)
I would like to know more about this...
Does anyone know what company prints these type of labels that are voltage activated?
Does anyone know what technology they're using?
I've tried looking around but have no idea where to start.
TIA
Does anyone know what company prints these type of labels that are voltage activated?
Does anyone know what technology they're using?
I've tried looking around but have no idea where to start.
TIA





RE: Duracell power Check feature?
RE: Duracell power Check feature?
Here's an abstract from patent # 5,612,151
A label for an electrochemical cell with a condition tester for the cell integrated with the label to form a label/tester composite is disclosed. The label/tester composite has a thermochromic material in thermal contact with an electrically conductive material. A substructure containing a cured conductive material and preferably also a thermochromic material is formed on a releasable web and transferred from the releasable web to the inside surface of the heat shrinkable base film. A partition coating may be applied over the transferred conductive material. Preferably, a sheet of paper or plastic film having a large window opening therein for entrapping air is applied over the partition coating and aligned over the heat generating portion of the conductive material. The label/tester composite is applied to the cell housing with the insulating paper or plastic film with window opening against the cell housing. The tester may be activated by depressing one or two regions on its surface thereby connecting the conductive material to the terminals of the cell, whereupon the conductive material becomes heated causing a change in appearance of the thermochromic material to indicate the condition of the cell.
RE: Duracell power Check feature?
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RE: Duracell power Check feature?
RE: Duracell power Check feature?
RE: Duracell power Check feature?
http://en.wikipedia.org/wiki/Thermochromics
JRaef.com
"Engineers like to solve problems. If there are no problems handily available, they will create their own problems." Scott Adams
For the best use of Eng-Tips, please click here -> FAQ731-376
RE: Duracell power Check feature?
On the Duracell cells, there was one or two white spots (buttons) that had to be pressed to complete the circuit. So the indicator only used power for the few seconds that you pressed the buttons. If they hadn't included the series switches, then the battery would probably have been dead before it left the warehouse.
RE: Duracell power Check feature?
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Duracell power Check feature?
TTFN
RE: Duracell power Check feature?
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Duracell power Check feature?
Not accurate by any means, but handy when you just want a visual indication of activity.
RE: Duracell power Check feature?
RE: Duracell power Check feature?
I like jimkirk's idea. That's cute! I can envision a
problem soldering wires onto the contacts of the "display",
but I guess some sort of compression connection would
work as well.
Thanks for the thought. If I were in high school (oh
that was MANY years ago) it would make an interesting
science fair project.
However, even today, that's something to think about.
Thanks for the thought. I'll "star" your post.
Cheers,
Rich S.
RE: Duracell power Check feature?
Press the contacts against your tongue and feel the burn!
RE: Duracell power Check feature?
Can tell you my ass was sore from the kicking I got from my father (I was 9 at the time)
Was way cool to see her face though !
Rugged
RE: Duracell power Check feature?
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"It's the questions that drive us"
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