The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2007
Filed:
Mar. 05, 2004
Applicants:
Richard D. Bomba, Rochester, NY (US);
Nelson A. Blish, Rochester, NY (US);
Inventors:
Richard D. Bomba, Rochester, NY (US);
Nelson A. Blish, Rochester, NY (US);
Assignee:
Rohm and Haas Dënmark Finance A/S, Copenhagen, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21G 1/02 (2006.01); B41F 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A compliant pressure roller () for creating uniform pressure at a nip () has a stationary inner core (). A plurality of shoes () is pivotally mounted to the stationary inner core. Non-magnetic dividers () create a plurality of annular chambers () and one shoe occupies one of the chambers. A magneto-rheological fluid fills each of the chambers and a plurality of magnetic field generators () changes a magnetic field in each of the chambers. A thin, rotatable shell () surrounds the plurality of chambers, shoes, and stationary inner core.