Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-07-18
2006-07-18
Mullen, Jr., Thomas J. (Department: 2632)
Communications: electrical
Condition responsive indicating system
Specific condition
C361S689000, C361S688000
Reexamination Certificate
active
07079039
ABSTRACT:
The invention concerns a device for and a process for testing electric motors, in particular fan motors, for functionality, wherein electromagnetic alternating fields produced by an electric motor are received by an antenna, wherein the received signals are analyzed for signal components in the frequency range of the rotation value of electric motors or their harmonics via an analysis unit, and wherein upon determination of functionality the results are indicated by an indicator unit.
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Gruhle Andreas
Kibbel Horst
Akerman & Senterfitt
Daimler-Chrysler AG
Mullen Jr. Thomas J.
Pendorf Stephan A.
Walk Samuel J.
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