All Patents in class 388 |
Patents 16 -
30
of 49
|
Number | Date | Patentee | Title | Type |
551,371 | Dec. 17, 1895 | R. Eickemeyer | Means for operating and regulating speed of electric motors | |
564,558 | Jul. 21, 1896 | R. Eickemeyer | Speed-regulator for electric motors | |
597,418 | Jan. 18, 1898 | F.A. Johnson | Regulation of dynamo-electric machinery | electric motors |
653,725 | Jul. 17, 1900 | D.C. Woodward | Electric Motor | electric motors |
660,908 | Oct. 30, 1900 | B.G. Lamme | Variable-speed electric motor | DC motors |
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 |
740,101 | Sep. 29, 1903 | W.A. Dick | Method of operating electric motors | induction motors |
757,394 | Apr. 12, 1904 | R. Eickemeyer | Means for variably operating and controlling electric motors | |
793,848 | Jul. 04, 1905 | C.S. Reno | Electric controller | elevators and lifts |
838,547 | Dec. 18, 1906 | A. Kimble | Electric motor and method of controlling the same | electric motors |
850,277 | Apr. 16, 1907 | C.R. Tatem | System of motor control | motor controls |
913,691 | Mar. 02, 1909 | J. Burke | Variable-speed motor | DC motors |
1,053,940 | Feb. 18, 1913 | J. Burke | Universal motor | universal motors |
1,112,784 | Oct. 06, 1914 | E.L. Gale, Sr. | Means for Controlling Electric Currents | motor controls |