Heating device

Details Heating device Heating device

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.

REFERENCES:
patent: 3601645 (1971-08-01), Whiteheart
patent: 3617785 (1971-11-01), Kristiansen
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.

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