All Patents of Type: motor controls |
Patents 1 -
15
of 97
|
Number | Date | Patentee | Title | Type |
251,541 | Dec. 27, 1881 | T.A. Edison | Electric Magnetic Motor | motor controls |
465,512 | Dec. 22, 1891 | W.S. Andrews, A.K. Warren | Rheostat | motor controls |
485,620 | Nov. 08, 1892 | J.P. Fiske | Electric Motor Controller | motor controls |
500,274 | Jun. 27, 1893 | W.L. Tyler, A.B. See | Regulating Switch for Electric Elevators | motor controls |
520,748 | May 29, 1894 | J.S. Bancroft | Method of Operating Electric Motors | motor controls |
524,396 | Aug. 14, 1894 | W.B. Potter | Controller for Electric Motors | motor controls |
583,935 | Jun. 08, 1897 | F.E. Case, W.B. Potter | Series Parallel Controller | motor controls |
672,419 | Apr. 16, 1901 | F.A. Johnson | Means for Controlling Electric Motors | motor controls |
673,239 | Apr. 30, 1901 | J. Burke | Regulation and control of electric motors | motor controls |
681,133 | Aug. 20, 1901 | T.S. Perkins | Starting Apparatus for Electric Motors | motor controls |
681,167 | Aug. 20, 1901 | A.H. Mathewson, G.L. Fairbrother | Electrical Controller Attachment | motor controls |
714,786 | Dec. 02, 1902 | M.W. Day | Controlling Electric Motors | motor controls |
714,862 | Dec. 02, 1902 | H.W. Buck | Controlling Electric Motors | motor controls |
715,019 | Dec. 02, 1902 | F.E. Case | Means for Synchronizing Motors | motor controls |
715,195 | Dec. 02, 1902 | F.E. Case | Method of Synchronizing Motors | motor controls |