Method for creating a uniform nip pressure utilizing a compliant pressure roller
AssigneeSKC Haas Display Films Co., Ltd.
InventorsRichard D. Bomba, Nelson A. Blish
Life of this patent
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Abstract
The present invention provides a method for creating uniform pressure at a nip comprising the acts of providing a stationary inner core, pivotally mounting a plurality of shoes to the stationary inner core, creating a plurality of annular chambers wherein each of the shoes occupies one of the chambers. In addition, the method further provides filling each of the chambers with a magneto-rheological fluid, surrounding the plurality of chambers, shoes, and stationary inner core with a thin, metal, rotatable shell; detecting a deformation in the shell and changing a magnetic field in at least one of the chambers to change a viscosity of the magneto-rheological fluid to correct the deformation.
Claims7
A method for creating uniform pressure at a nip comprising:
- providing a stationary inner core;
- pivotally mounting a plurality of shoes to said stationary inner core;
- creating a plurality of annular chambers wherein each of said shoes occupies one of said chambers;
- filling each of said chambers with a magneto-rheological fluid;
- surrounding said plurality of chambers, shoes, and stationary inner core with a thin, metal, rotatable shell;
- detecting a deformation in said shell;
- and
- changing a magnetic field in at least one of said chambers to change a viscosity of said magneto-rheological fluid to correct said deformation.
Dependencies are inferred from the claim text.