Issued Patents All Time
Showing 76–86 of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6291952 | Method and circuit arrangement for operating an electromagnetically actuated mechanical brake of an electric motor | Jorg Roth-Stielow | 2001-09-18 |
| 6229232 | Electric motor with an upstream frequency converter | Jorg Roth-Stielow | 2001-05-08 |
| 6081086 | Method and apparatus for electrically braking a motor | Jorg Roth-Stielow | 2000-06-27 |
| 5436546 | Method and apparatus for switching back a change-pole motor | Walter Trumpler | 1995-07-25 |
| 5278483 | Motor brake with single free wheeling diode connected in parallel with only one partial coil of brake magnet coil | Walter Trumpler | 1994-01-11 |
| 4860167 | Electrical switching unit | Walter Trumpler | 1989-08-22 |
| 4829746 | Apparatus for placing a web of film under tension | Dallas L. Woods | 1989-05-16 |
| 4794750 | Method for making containers having ports | David A. Winchell | 1989-01-03 |
| 4779997 | Closure for a port and closure assembly | — | 1988-10-25 |
| 4761197 | Apparatus for sealing a web of film | William C. Christine, Steffen Lyons, Brian C. Green, George J. Herschman | 1988-08-02 |
| 4708045 | Replaceable knife and holder | John L. Posey | 1987-11-24 |