Title:
CERAMIC HEATER/FUSER ROLLER WITH INTERNAL HEATER
Document Type and Number:
WIPO Patent Application WO2002005594
Kind Code:
A3
Abstract:
A thermal conduction roller (10) has a tubular roller core (11) with an inside surface; and an electrical insulator coat (16) primarily of zirconia on the inside surface, a heater coat (18) of titania or a titania blend is disposed over the insulator coat (16), and at least two electrical contact assemblies that are disposed inside the roller and electrically connect to the heater coat (18) as the roller (10) is being rotated. One embodiment utilizes an electrical insulator coat (16) in a range of thickness from about ten mils to about twenty mils. A thinner coat may not have sufficient dielectric strength., while a thicker coat decrease thermal conduction. A release material (12) is applied to the outside of the roller (10). Various contact structure according to the present invention are also described to a three-phase power supply.
More Like This:
Inventors:
HYLLBERG BRUCE E
Application Number:
PCT/US2001/020087
Publication Date:
July 04, 2002
Filing Date:
June 22, 2001
Export Citation:
Assignee:
AMERICAN ROLLER CO (US)
International Classes:
G03G15/20; H05B3/00; (IPC1-7): H05B3/00
Foreign References:
| US5408070A | 1995-04-18 | |||
| US5906762A | 1999-05-25 |
Download PDF:
Previous Patent: METHOD FOR THE TRANSMISSION OF AUDIO SIGNALS
Next Patent: IMPROVED DIELECTRIC HEATING USING INDUCTIVE COUPLING
Next Patent: IMPROVED DIELECTRIC HEATING USING INDUCTIVE COUPLING