Rotary printing machine with a device for treating the surface of sheets

Patent 5873309 Issued on February 23, 1999. Estimated Expiration Date:

July 21, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Sheet-fed rotary printing machine for single-side multicolor printing and perfector printing Patent #: 4732084
Issued on: 03/22/1988
Inventor: Wirz

Inventors

Assignee

Heidelberger Druckmaschinen Aktiengesellschaft

Application

No. 897739 filed on 07/21/1997

US Classes:

101/424.1, Drying with fluid (air) or by heating101/232Feeding or delivering

Examiners

Primary: Yan, Ren

Attorney, Agent or Firm

Lerner; Herbert L., Greenberg; Laurence A.

Foreign Patent References

0378 826 A3 EP. 07/13/1990
0 378 826 A2 EP. 07/13/1990
510 456 DE. 10/13/2012
688935 DE. 03/13/2012
6603661U1 DE. 05/13/1966
123 071 DE. 11/13/1976
3413159C2 DE. 09/13/1986
3632744A1 DE. 05/13/1987
42 19 116 A1 DE. 12/13/1993
43 42 203 A1 DE. 06/13/1995
4436955A1 DE. 04/13/1996
95/29813 WO. 11/13/1995

International Class

B41F 023/04

Foreign Application Priority Data

1996-07-20 DE

Abstract

A rotary printing machine with a sheet-surface treating device disposed between a last cyclically operating printing unit and a device for conveying sheets on a sheet pile, the sheet-surface treating device including at least one fixed drier past which the sheets are guidable, includes at least one module composed of two rotating conveying elements having a like circumferential speed for transporting the sheets along the sheet-surface treating device, the conveying elements carrying grippers for grasping a respective leading edge of one of the sheets, the sheets being supplied to the module and discharged from the module, respectively, during a rotation of the grippers in accordance with a printing cycle, a plurality of gripper arms, the grippers of a respective conveying element disposed first along a conveying path of the sheets being carried by at least one of the gripper arms, guiding elements for freely guiding the sheets otherwise, the grippers of the conveying element disposed second along the conveying path of the sheets being carried by at least one of the gripper arms, and rotating curved supporting elements arranged in cicumferential direction between the gripper arms so that the sheets are disposable thereon.