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Class Information
Number: 322/31
Name: Electricity: single generator systems > Automatic control of generator or driving means > Speed or frequency of generator > Tachometer devices
Description: Subject matter wherein a tachometer device is utilized to produce an energy output which is a measure of the speed and such output is used to provide the control.

Patents under this class:

Patent Number Title Of Patent Date Issued
7227338 Fixed frequency electrical generation system with induction coupler and use thereof in an aircraft Jun. 5, 2007
7002579 Split screen GPS and electronic tachograph Feb. 21, 2006
6380734 Control element assembly position verification apparatus Apr. 30, 2002
6163078 Adjustable speed gas turbine power generation apparatus and its operation method Dec. 19, 2000
4924674 Turbocharger with rotary electric machine May. 15, 1990
4572999 Brushless tachometer Feb. 25, 1986
4439721 Magneto alternator regulator with tachometer output Mar. 27, 1984
4406983 Rotational magnetic transducer Sep. 27, 1983
4364005 Brushless tachometer generator Dec. 14, 1982
4146264 Load control for wind-driven electric generators Mar. 27, 1979
4110676 Dynamoelectric machine and tachometer Aug. 29, 1978
4015187 Exciter arrangement for generators Mar. 29, 1977
3956649 Brushless rotary signal transducer May. 11, 1976

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