JAMES E MEYER
Vehicle Board in Erie, PA

5398404, Mar 21, 1995

Dec 16, 1993

8/168987

James A. Meyer - Erie PA
Paul L. Flynn - Fairview PA
James Kobrinetz - Erie PA
Anthony W. Giammarise - Erie PA
James M. Nuber - Waterford PA
Shaun P. Luther - Lydonville VT

General Electric Company - Erie PA

H02K 1502

29732

A method for brazing end rings to rotor bars for a squirrel cage rotor assembly comprises assembling the rotor in a brazing fixture with a braze shim between the rotor bars and the end rings; preheating the rotor and brazing fixture to a temperature that is below the aged temperature of the rotor bars and end rings and which is sufficiently high so that the difference in thermal expansion of the rotor bars and brazing fixture applies a predetermined amount of pressure on the brazing joint such that after the joint is brazed and has cooled, a braze filler having a predetermined thickness inches will bond the rotor bar end faces to the end ring, and brazing each joint to bond the rotor bar end faces to the end ring. A braze fixture for maintaining a predetermined pressure on a squirrel cage rotor assembly during the process of brazing rotor bars to end rings to form a brazed joint, which rotor assembly includes rotor bars disposed in a rotor core and having their ends positioned on braze shims on end rings, comprises positioning means for positioning the rotor assembly in the apparatus; pressure means for applying a predetermined amount of pressure on the end rings, rotor bars and braze shims of the rotor assembly so that when the ends of the rotor bars, braze shims and end rings are brazed to form a joint, the resulting brazed joint has a predetermined thickness.

5283941, Feb 8, 1994

Jul 21, 1992

7/917701

James A. Meyer - Erie PA
Paul L. Flynn - Fairview PA
James Kobrinetz - Erie PA
Anthony W. Giammarise - Erie PA
James M. Nuber - Waterford PA
Shaun P. Luther - Lydonville VT

General Electric Company - Erie PA

H02K 1506

29598

A method for brazing end rings to rotor bars for a squirrel cage rotor assembly comprises assembling the rotor in a brazing fixture with a braze shim between the rotor bars and the end rings; preheating the rotor and brazing fixture to a temperature that is below the aged temperature of the rotor bars and end rings and which is sufficiently high so that the difference in thermal expansion of the rotor bars and brazing fixture applies a predetermined amount of pressure on the brazing joint such that after the joint is brazed and has cooled, a braze filler having a predetermined thickness inches will bond the rotor bar end faces to the end ring, and brazing each joint to bond the rotor bar end faces to the end ring. A braze fixture for maintaining a predetermined pressure on a squirrel cage rotor assembly during the process of brazing rotor bars to end rings to form a brazed joint, which rotor assembly includes rotor bars disposed in a rotor core and having their ends positioned on braze shims on end rings, comprises positioning means for positioning the rotor assembly in the apparatus; pressure means for applying a predetermined amount of pressure on the end rings, rotor bars and braze shims of the rotor assembly so that when the ends of the rotor bars, braze shims and end rings are brazed to form a joint, the resulting brazed joint has a predetermined thickness.

5301545, Apr 12, 1994

Oct 5, 1992

7/956525

James A. Meyer - Erie PA
James R. Christensen - North East PA
Douglas A. Dunbar - Erie PA

General Electric Company - Erie PA

G01B 734

73105

Irregularities in the outer surface of a commutator are identified and measured while the commutator is in the motor by removing a brush from its brush holder, and securing a jig in the brush holder. The jig has a sensor which generates electrical signals in response to movement of a profiling foot at an end of the sensor. The sensor is adjusted so that the profiling foot touches the commutator surface, and the commutator is then rotated at least one full revolution. By measuring movement of the profiling foot as the commutator turns, as observed through the output signals of the sensor, irregularities in the commutator surface can be identified and measured. The output signals of the sensor can be recorded or otherwise stored for analysis. The profiling foot is pivoted so that it rests flat against the commutator contacts, even if the brush holder is not properly aligned with the commutator.