Ceramic heater roller with thermal regulating layer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 18, 1995
Issued Date -
N/A
app pub date -
Jun 2, 1993
filing date -
Nov 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A thermal conduction roller for use in industrial and office equipment includes a ceramic heater layer and a second ceramic layer disposed in between the ceramic heater layer and the core. The second ceramic layer has a resistance characteristic such that resistance of the roller decreases with heating to approximately the same order of magnitude as resistance in the longitudinal direction. This causes electrical current to be diverted from the ceramic heater layer to limit the temperature in that layer and any outer layer contacting a work object. The resistance of the second ceramic layer is controlled in part by controlling the parameters of plasma spraying process, including hydrogen secondary gas flow.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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