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

Icon_funbox Quotables

"The production of too many useful things results in too many useless people."

Karl Marx

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 307/78 - Generator sources


Subclass of Class 307 - Electrical transmission or interconnection systems
Definition: Subject matter in which the sources are generators.
No. of patents: 6
Last issue date: 07/18/2006


NumberTitleIssue Date
7078830Connecting circuit and method for connecting a generator to the electricity grid making use thereof
The present invention relates to a connecting circuit for connecting to an electricity grid an electric generator for generating electrical energy, comprising a measuring circuit for measuring the current through the connecting circuit; a storage element for storing...
07/18/2006
6657321Direct current uninterruptible power supply method and system
A method and system are described for providing a direct current (DC) uninterruptible power supply with the method including, for example: continuously supplying fuel to a turbine; converting mechanical power from the turbine into alternating current (AC)...
12/02/2003
6628012Uninterruptible power supply
An uninterruptible power supply system (UPS) includes a coupling choke (5) being operably arranged between an electrical load (2) and an external source of power (4). A generator (8) is operably connected to the coupling choke (5) on the side of the elect...
09/30/2003
6268559Photovoltaic generation system, wiring apparatus for photovoltaic generation system, and wiring structure therefor
A wiring apparatus comprises a trunk cable, branch junctions, and branch cables diverging individually from the branch junctions. A plurality of photovoltaic modules, which are arranged side by side on a roof of a building or the like, or module units, co...
07/31/2001
4177414Controllable voltage A.C. generator system
This invention relates to a generator system for generating a readily controllable A.C. of a selected potential and of a substantially constant selected frequency, which system comprises a first, or master, rotary generator producing an A.C. potential of ...
12/04/1979
4057736Electrical power generation and distribution system
Problems associated with moving fuel from remote sources to large centralized power generation plants are avoided with an economical system for collecting power from small stations located near the scattered, remote fuel sites. To avoid a need for many ma...
11/08/1977
 
Sign InRegister
Username  
Password   
forgot password?