PTC circuit protector having parallel areas of effective resistance
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 10, 2006
Grant Date -
Jun 1, 2006
app pub date -
Nov 29, 2004
filing date -
Nov 29, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A PTC circuit protection device to protect electronic devices against excessive temperatures and electrical currents. The device comprises a polymeric resistor element, a first electrode, and a second electrode. The polymeric resistor element changes resistance in response to temperature changes. The resistor element has an upper surface and a lower surface. The first electrode is in electrical contact with both the upper surface and the lower surface. The second electrode is in electrical contact with both the upper surface and the lower surface. The circuit protection device has a first effective area of resistance and a second effective area of resistance that is electrically in parallel with the first effective area.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully