| Patents for U. S. Electrical Motors, Inc. |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
 | 2,023,421 | Dec. 10, 1935 | D. Heyer | Flexible power transmission device |
 | 2,256,114 | Sep. 16, 1941 | D. Heyer | Variable speed drive with multiple belts |
 | 2,384,169 | Sep. 04, 1945 | G.E. Huck, F.O. Luenberger | Controlling pressure in a fluid-filled motor |
 | 2,568,861 | Sep. 25, 1951 | F.O. Luenberger | Means for preventing air leakage through lubricated bearings |
 | 2,607,969 | Aug. 26, 1952 | W.M. Evans, R.S. Thacker | Spacer for casting squirrel cage rotors |
| | 2,708,985 | May 24, 1955 | W.M. Evans, R.A. Morrison | Lubrication system |
 | 2,721,774 | Oct. 25, 1955 | F.O. Luenberger | Thrust bearing for vertical motor |
 | 2,793,714 | May 28, 1957 | F.O. Luenberger | Lubrication system for enclosed transmission |
 | 2,813,763 | Nov. 19, 1957 | A.C. Eisenhart | Lubricant cooling system |
 | 2,825,827 | Mar. 04, 1958 | F.O. Luenberger | Ventilated electric motors |
