Issued Patents All Time
Showing 126–145 of 145 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4256193 | Rotary drill bit with rotary cutter | Heinrich Kunkel, Armin Olschewski, Lothar Walter | 1981-03-17 |
| 4255000 | Rotary drill bit | Armin Olschewski, Lothar Walter, Heinrich Kunkel, Gosta Norlander | 1981-03-10 |
| 4249781 | Rotary drilling bit with conically shaped rotary cutters | Armin Olschewski, Heinrich Kunkel, Lothar Walter | 1981-02-10 |
| 4240673 | Longitudinally movable antifriction bearing with flexural tongue | Horst M. Ernst, Armin Olschewski, Lothar Walter | 1980-12-23 |
| 4239299 | Ball bearing for linear motion | Alfred Hoffmann, Carl Ullberg, Hendrik Cornelis Rekers, Horst M. Ernst, Armin Olschewski +2 more | 1980-12-16 |
| 4239298 | Rolling bearing for linear movement having cage extending beyond outer sleeve | Horst M. Ernst, Armin Olschewski, Lothar Walter | 1980-12-16 |
| 4235480 | Seal ring for drill bit assemblies | Armin Olschewski, Heinrich Kunkel, Lothar Walter | 1980-11-25 |
| 4233855 | Mechanism for the axial shifting of an anti-friction bearing | Armin Olschewski, Heinrich Kunkel, Lothar Walter | 1980-11-18 |
| 4229055 | Vibration-absorbing antifriction bearing, especially for a driveshaft of a motor vehicle | Armin Olschewski, Lothar Walter | 1980-10-21 |
| 4219240 | Wheel for roller skates or the like | Armin Olschewski, Sigismund Finzel, Willi Gossmann, Josef Stark | 1980-08-26 |
| 4209208 | Rolling bearing for conveyor rolls | Armin Olschewski, Lothar Walter, Rainer Schurger, Gunter Neder | 1980-06-24 |
| 4206951 | Linear rolling bearing | Horst M. Ernst, Armin Olschewski, Lothar Walter | 1980-06-10 |
| 4206952 | Rotary drill bit with a porous cup bearing | Armin Olschewski, Heinrich Kunkel, Lothar Walter | 1980-06-10 |
| 4205885 | Ball bearing with cage formed of axial sections | Horst M. Ernst, Armin Olschewski, Lothar Walter | 1980-06-03 |
| 4204717 | Ball bearing with radial apertures in end rings | Horst M. Ernst, Armin Olschewski, Lothar Walter | 1980-05-27 |
| 4202558 | Support body for rollers of skating devices | Armin Olschewski, Manfred Krug, Horst Martin | 1980-05-13 |
| 4201282 | Clutch release assembly and bearing therefor | Horst M. Ernst, Armin Olschewski, Lothar Walter | 1980-05-06 |
| 4201424 | Rolling bearing having two-sided race rails | Horst M. Ernst, Armin Olschewski, Lothar Walter | 1980-05-06 |
| 4181374 | Rolling bearing having end rings mounted to engage a housing | Horst M. Ernst, Armin Olschewski, Lothar Walter | 1980-01-01 |
| 4181375 | Roller bearing with rolling elements having concave center parts and convex end parts | Horst M. Ernst, Armin Olschewski, Rainer Schurger, Lothar Walter, Erich Burkl | 1980-01-01 |