Printing – Printing members – Rolling contact
Reexamination Certificate
2002-06-14
2004-12-28
Hirshfeld, Andrew H. (Department: 2854)
Printing
Printing members
Rolling contact
C101S216000, C101S375000
Reexamination Certificate
active
06834585
ABSTRACT:
FIELD OF THE INVENTION
The present invention is directed to a cylinder of a rotary printing press. Two channels in the cylinder are offset with respect to each other in the circumferential direction.
BACKGROUND OF THE INVENTION
DE 198 03 809 A1 and JP 10-071694A disclose transfer cylinders of a printing press with channels which are arranged offset by 180°.
SUMMARY OF THE INVENTION
The object of the present invention is directed to providing a cylinder for a rotary printing press.
In accordance with the present invention, this object is attained by providing the cylinder with at least two channels or grooves which are situated on the surface of the cylinder and which are offset at an angle in the circumferential direction of the cylinder. The angular offset is determined as a function of the inherent bending frequency of the cylinder. This offset is preferably between 5° and 40°.
The advantages which can be achieved by the present invention primarily lie in that the amplitude of the cylinder vibration is minimized by passive vibration damping.
REFERENCES:
patent: 872004 (1907-11-01), McCain et al.
patent: 894200 (1908-07-01), Goss
patent: 1357341 (1920-11-01), Novotny
patent: 1479446 (1924-01-01), Bauer
patent: 3166012 (1965-01-01), Hantscho
patent: 3395638 (1968-08-01), Kirkus et al.
patent: 4332194 (1982-06-01), Gensheimer
patent: 4878429 (1989-11-01), Russo
patent: 4974512 (1990-12-01), Russo
patent: 5038680 (1991-08-01), Bain
patent: 5069127 (1991-12-01), Iijima et al.
patent: 6408747 (2002-06-01), Koppelkamm et al.
patent: 345906 (1960-06-01), None
patent: 198 03 809 (1999-08-01), None
patent: 2 276 177 (1975-06-01), None
patent: 1 476 707 (1977-06-01), None
patent: 10-071694 (1998-03-01), None
patent: WO 89/11393 (1989-11-01), None
Hinze Leo T.
Hirshfeld Andrew H.
Jones Tullar & Cooper PC
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