|
| US4836755 | 22 Mar 1988 | 6 Jun 1989 | Durr Dental GmbH & Co KG | Compressor with balanced flywheel |
| US4977344 | 18 Dic 1989 | 11 Dic 1990 | Emerson Electric Co. | Rotor assembly and motor construction |
| US5128576 | 28 Ene 1987 | 7 Jul 1992 | Emerson Electric Co. | Rotor assembly and motor construction and method of making same |
| US5235228 | 23 Oct 1991 | 10 Ago 1993 | Fanuc Ltd. | Motor balancing structure |
| US5386163 | 7 Ene 1993 | 31 Ene 1995 | Emerson Electric Co. | Counterweighted rotor |
| US7786628 | 17 Sep 2004 | 31 Ago 2010 | Dyson Technology Limited | Rotor assembly with balancing member |