Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7574958 | Printing material sheet gripper and method for producing the sheet gripper | Jens Forche, Karl-Heinz Helmstadter, Dieter Stephan, Volker Weyde | 2009-08-18 |
| 7325493 | Sheet-fed rotary printing press having a three-drum reversing device and method of transporting a sheet through a three-drum reversing device | Karl-Heinz Helmstadter, Hans Peter Boguhn, Gunter Stephan | 2008-02-05 |
| 7320281 | Method of varying a drum profile of a vario drum and vario drum for implementing the method | Willi Becker, Daniel Conzelmann, Karl-Heinz Helmstadter, Thorsten Eckart, Christian Gorbing +3 more | 2008-01-22 |
| 7287750 | Machine for processing printing material sheets, in particular sheet-fed printing press, and method of operating the machine | Rudi Haupenthal, Jens Friedrichs, Karl-Heinz Helmstadter, Olaf Lorenz, Gunter Stephan +2 more | 2007-10-30 |
| 7118104 | Gripper system for a machine which processes printing material sheets | Jens Forche | 2006-10-10 |
| 6976427 | Gripper system | Willi Becker, Jens Forche | 2005-12-20 |
| 6883431 | Safety device and method for monitoring a hazardous area that cannot be looked at in a printing machine | Uwe Fischer, Carsten Huschle, Dirk Naumann, Michael A. Rehberg | 2005-04-26 |
| 6877430 | Gripper device in a sheet-processing machine | Volker Müller, Hendrik Frank, Manfred Gross, Karl-Heinz Helmstadter, Michael Kruger +5 more | 2005-04-12 |
| 6739252 | Method and apparatus for reversing sheet material in sheet-processing machines | Gunter Stephan, Karl-Heinz Helmstadter, Eckart Frankenberger | 2004-05-25 |
| 5988065 | Device for controlling suction air or vacuum and method of actuating the device | Raimund Schroder, Rudi Haupenthal, Karl-Heinz Helmstadter, Roland Krupp | 1999-11-23 |
| 5398924 | Sensor for cyclically scanning the height of a pile | Jochen Renner | 1995-03-21 |
| 5131764 | Securing device for a set collar | — | 1992-07-21 |
| 5048362 | Device for tensionally connecting a fixed gearwheel and an adjustable gearwheel on a cylinder of a turning apparatus in a sheet-fed rotary printing press and, more particularly, to such a device which is electrically safeguarded | Willi Becker | 1991-09-17 |
| 5048815 | Gripper device on sheet-fed rotary printing machines | Dieter Bergmeier | 1991-09-17 |
| 4947748 | Sheet gripper on sheet-fed rotary printing presses | Willi Becker | 1990-08-14 |