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All Patents of Type: electric motor making
Patents 1 - 15 of 15
First set of recordsLast set of records
NumberDatePatenteeTitleType
928,037Jul. 13, 1909W.H. FrostDynamo-electric machinemotor armatures
928,084Jul. 13, 1909L.E. UnderwoodInsulating-studelectric motor making
1,016,700Feb. 06, 1912A.L. McHughCoil-forming machineelectric motor making
1,379,755May 31, 1921C.W. FrancisApparatus for making windingselectric motor making
1,488,873Apr. 01, 1924C.W. FrancisWindingelectric motor making
1,507,381Sep. 02, 1924W. JannellCommutator-slotting machineelectric motor making
1,537,533May 12, 1925W. JannellFiber-crimping- machineelectric motor making
1,538,187May 19, 1925A.B. HerrickMethod and apparatus for placing windings in motor statorselectric motor making
1,612,026Dec. 28, 1926W. JannellWinding machineelectric motor making
1,669,134May 08, 1928N.T. KelsoMolded commutatorelectric motor making
1,695,799Dec. 18, 1928C.L. DaunMethod of producing integral bar windings in the rotors of electric motorselectric motor making
1,751,559Mar. 25, 1930T. SchouMethod of standardizing the manufacture of dynamo-electric machineselectric motor making
2,297,988Oct. 06, 1942M.B. SawyerMotor constructioninduction motors
2,354,551Jul. 25, 1944M.B. SawyerElectromagnetic apparatus and method of making the sameinduction motors
2,499,390Mar. 07, 1950H.M. JoyRotor for alternating currentelectric motor making
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