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All Patents in class 310/78
Patents 1 - 15 of 21
First set of recordsNext set of recordsLast set of records
627,613Jun. 27, 1899F.R. GoolmanClutchfriction clutches
664,190Dec. 18, 1900E. ThomsonAlternating-current electric motorshaded pole induction motors
714,824Dec. 02, 1902A. SchwartzProcess of Starting Induction Motorsinduction motors
805,499Nov. 28, 1905S.D. StoycheffElectric drillhandheld drills
844,383Feb. 19, 1907H.I. Finch, C.R. MestonElectric motorrepulsion start induction run motors
844,384Feb. 19, 1907H.I. Finch, C.R. MestonElectric motorrepulsion start induction run motors
1,092,849Apr. 14, 1914J.D. NiesRotor construction for induction-motorsinduction motors
1,102,116Jun. 30, 1914J.J. WoodDynamo-electric machineelectric motors
1,650,911Nov. 29, 1927F. SchneiderPortable hand tool
1,665,742Apr. 10, 1928F.S. KingstonInduction motorinduction motors
1,828,540Oct. 20, 1931W.A. MarschkeBuffer or grinder
1,853,864Apr. 12, 1932F.S. KingstonClutch and motor constructionelectric motors
1,872,595Aug. 16, 1932F.S. KingstonElectric motorelectric motors
1,910,610May 23, 1933F.S. KingstonDynamo-electric machineelectric motors
1,916,270Jul. 04, 1933F.S. KingstonInduction motorinduction motors
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