U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Celebrity Inventors

Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 322/93 - Tapped or sectionalized


Subclass of Class 322 - Electricity: single generator systems
Definition: Subject matter wherein the generator armature circuit control
No. of patents: 10
Last issue date: 02/07/2006


NumberTitleIssue Date
6995546Alternating current generator
An alternating current generator of the invention has three armature windings, which are wound from a winding start end connected to a neutral point to winding finish ends, and a stator that is connected to the neutral point in Y-connection at a phase difference of ...
02/07/2006
6049198Power supply device with two output voltages
The voltage supply device for the motor vehicle electrical system includes e.g. a self- or separately-excited generator having stator windings (10,11,12) and an excitation coil (E); a main bridge rectifier device connected to the stator windings having a ...
04/11/2000
5559704Method to compute horsepower required by an internal combustion engine coupled to an auxiliary alternator
A method for determining gross engine horsepower of an internal combustion engine coupled in driving relationship to an alternating current electric alternator, the alternator supplying electric power to variable loads, comprises measuring the field curre...
09/24/1996
5066866Power converter system
An electrical apparatus for use with a motor vehicle electrical system, which includes an engine-driven alternator, provides a switching circuit for switching the system between a normal-power state and a high-power state. In the normal-power state, the a...
11/19/1991
4906060Apparatus and method for controlling the output frequency of a wind-driven alternator
Method and apparatus for controlling the output frequency of an alternator by maintaining a relatively constant speed of rotation of the alternator rotor are disclosed. The rotor includes an annular stator and a rotor rotatably mounted within. In one embo...
03/06/1990
4642547Adaptive regulation system for a linear alternator driven by a free-piston stirling engine
A load regulator for a linear alternator driven by a free piston Stirling engine. A substantially constant output voltage is maintained across the useful load by shunting a portion of the armature output current of the alternator through a variable energy...
02/10/1987
4395669Electrical machine having controlled characteristics and its application to a wind-driven machine
The invention provides an electrical machine having an inductor and an armature at least one of which has at least two independent winding assemblies. The switching into and out of circuit of each winding assembly is controlled by a processor which receiv...
07/26/1983
4314194Alternator-rectifier unit with higher voltage excitation circuit
Auxiliary windings wound in close juxtaposition to the respective phase windings of a three-phase alternator are connected in series with the star-connected phase windings at one end and at the other end to the diodes of a separate rectifier bridge for th...
02/02/1982
4268788A.C. Generator exciting method
In an a.c. generating means exciting method, the exciting windings are wound on the stationary core on which the armature winding has been wound, in such a manner that the exciting windings are delta-connected to one another with the two ends open, and th...
05/19/1981
4153869Dual voltage network electrical power supply system, particularly for automotive vehicles
A three-phase alternator has tapped armature windings, the tap points being connected to provide 12 V output and to a main battery. The end terminals of the armature windings are connected to an auxiliary rectifier, the output of which is connected to an ...
05/08/1979
 
Sign InRegister
Username  
Password   
forgot password?