Compliant pressure roller with uniform nip pressure

Details Compliant pressure roller with uniform nip pressure Compliant pressure roller with uniform nip pressure

2007-08-21

2007-08-21

Omgba, Essama (Department: 3726)

Roll or roller

With antideflection means

Rotatable relative to supporting shaft

C492S006000, C492S008000, C492S016000

Reexamination Certificate

active

10795010

ABSTRACT:
A compliant pressure roller (10) for creating uniform pressure at a nip (42) has a stationary inner core (12). A plurality of shoes (14) is pivotally mounted to the stationary inner core. Non-magnetic dividers (16) create a plurality of annular chambers (18) and one shoe occupies one of the chambers. A magneto-rheological fluid fills each of the chambers and a plurality of magnetic field generators (13) changes a magnetic field in each of the chambers. A thin, rotatable shell (24) surrounds the plurality of chambers, shoes, and stationary inner core.

REFERENCES:
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patent: 5386769 (1995-02-01), Rinne
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patent: 6681905 (2004-01-01), Edmondson et al.
patent: 2002/0132712 (2002-09-01), Meschenmoser
patent: WO 02/064886 (2002-08-01), None
patent: WO 03/035976 (2003-05-01), None

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