Electric heating – Heating devices – Combined with diverse-type art device
Patent
1997-12-23
2000-07-18
Pelham, Joseph
Electric heating
Heating devices
Combined with diverse-type art device
399331, 310251, G03G 1520, H01R 3920, H01R 3918
Patent
active
060910518
ABSTRACT:
A heating device comprises an endless rotary member, a resistance heating member, a current receiver member provided at the endless rotary member and a current supply member being in contact with the current receiver member.
In a form, the current supply member is made of a sintered material containing copper and carbon, and a content of the copper in the sintered material is in a range from 55% to 80% by weight.
In another form, a contact surface of the current receiver member is formed of a material harder than the current supply member. The contact surface of the current receiver member and the contact surface of the current supply member have surface roughnesses satisfying a relationship of (surface roughness of the current receiver member).ltoreq.(surface roughness of the current supply member). The surface roughness Ra of the current receiver member is in a range from 0.3 .mu.m to 5.5 .mu.m. The surface roughness Ra of the current supply member is equal to or smaller than 5.5 .mu.m.
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patent: 4084669 (1978-04-01), Suwa et al.
patent: 4101453 (1978-07-01), Orford et al.
patent: 4349384 (1982-09-01), Weinert
patent: 4358319 (1982-11-01), Yoshida et al.
patent: 4745431 (1988-05-01), Kogure et al.
patent: 5701046 (1997-12-01), Kammerer et al.
Kosagi Yoshifumi
Morigami Yuusuke
Okabayashi Eiji
Sakata Toshio
Minolta Co. , Ltd.
Pelham Joseph
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