Coating apparatus – Solid member or material acting on coating after application – Rotary member
Patent
1979-12-13
1981-04-07
Kendall, Ralph S.
Coating apparatus
Solid member or material acting on coating after application
Rotary member
118653, 430 98, 100158R, G03G 1520
Patent
active
042599202
ABSTRACT:
A toner image pressure-fixing device has a pair of pinch rolls arranged in rolling engagement with each other to provide a nip through which a carrier sheet with a deposit of toner particles thereon is passed to fix the deposit to the carrier sheet by pressure. One of the pinch rolls is of a diameter smaller than that of the other and is solid while the other pinch roll is hollow. The small-diameter pinch roll is resiliently urged against the large-diameter pinch roll by leaf springs and is backed up by a single back-up roll which is disposed on the side of the small-diameter pinch roll substantially diametrically opposite to the large-diameter pinch roll and is resiliently urged against the small-diameter pinch roll whereby the small-diameter pinch roll is prevented from being deflected by pressure produced when a carrier sheet is passed through the nip between the pinch rolls.
REFERENCES:
patent: 1228178 (1917-05-01), Brooker
patent: 3343484 (1967-09-01), Dahlgren
patent: 3647525 (1972-03-01), Dahlgren
patent: 3874843 (1975-04-01), Fujimoto
patent: 3874894 (1975-04-01), Pedersen
patent: 3990391 (1976-11-01), Singh
patent: 4022122 (1977-05-01), Moser
Hitachi Metals Ltd.
Kendall Ralph S.
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