Heat roller and method of fabricating the same

Details Heat roller and method of fabricating the same Heat roller and method of fabricating the same

2005-09-06

2005-09-06

Pelham, Joseph (Department: 3742)

Electric heating

Heating devices

Combined with diverse-type art device

C399S333000

Reexamination Certificate

active

06940045

ABSTRACT:
A heat roller has a cylindrical sheet-like heating element, an inner tube and an outer tube. The sheet-like heating element has a resistance member embedded into an insulating member. The outer tube has a non-linear shape seen in an axial direction. The heat roller is fabricated by supplying pressurized fluid to the inner tube for expanding the inner tube, sheet-like heating element and outer tube toward a die. The die has a non-linear inner shape seen in the axial direction. Therefore, the outer tube of the fabricated heat roller has a non-linear shape. Further, an edge section of the inner tube can simultaneously be formed into a desired shape.

REFERENCES:
patent: 5932125 (1999-08-01), Kawata et al.
patent: 6289198 (2001-09-01), Kawamura et al.
patent: 08146803 (1996-06-01), None
patent: A 9-237671 (1997-09-01), None
patent: A 10-228201 (1998-08-01), None
patent: 11058552 (1999-03-01), None
patent: A 2001-74173 (2001-03-01), None
patent: A 2001-134124 (2001-05-01), None
patent: A-2003-029559 (2003-01-01), None

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