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

Icon_funbox Bizarre Patents

Patent No. 6260903

Portable automobile partition

A portable partition for use in an automobile having a seat with a seat bench and a seat backrest.

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 323/214 - Using saturable inductor


Subclass of Class 323 - Electricity: power supply or regulation systems
Definition: Subject matter wherein the element which produces the shift
No. of patents: 10
Last issue date: 02/09/2010


NumberTitleIssue Date
7659700Charge-transfer apparatus and method
An electronic device for transferring charge includes: a charge storage device; an inductive section; and a switching array having a first set of switches connected to a first node of a power terminal, a second set of switches connected to a second node, and a third...
02/09/2010
7402983Method for use of charge-transfer apparatus
A method for controlling a switching power converter which includes a central capacitor exchanges charge between the capacitor and plural nodes of a first terminal, and then transfers the charge between the capacitor and plural nodes of a second terminal. The charge...
07/22/2008
6166494Drive circuit arrangement for a gas discharge lamp
A drive circuit arrangement for a gas discharge lamp includes a) a self resonating inverting for providing a drive voltage across a load impedance, the inverter having a pair of field effect transistors which operate in anti-phase, b) a tank circuit for c...
12/26/2000
4719402VAR generator system with minimal standby losses
In a hybrid switched-capacitor controlled-reactor static VAR compensator including a fixed-capacitor, hysteresis on switching-OFF a switchable capacitor of the capacitance bank is performed with a minimal fixed-hysteresis at the entrance of the standby re...
01/12/1988
4684875Power conditioning system and apparatus
Power conditioning apparatus exhibiting enhanced stability with respect to lagging phase angle conditions incurred in conjunction with load derived transients. The apparatus employs a synthesizer network structured having a regulator which is fashioned as...
08/04/1987
4665322Uninterruptible polyphase AC power supply
An uninterruptible polyphase AC power supply equalizes an electric power taken out from a polyphase AC power source, even if unbalanced load is connected to output. The uninterruptible AC power supply comprizes a polyphase balanced phase shifter generatin...
05/12/1987
4531085Polyphase line voltage regulator
A polyphase line voltage regulator which uses polyphase pulse saturable ferroresonant reactors in series with three separate and equal input chokes. The line voltage regulator is particularly suitable for computer operations which impose a variable curren...
07/23/1985
4302805Power supply utilizing a high frequency magnetic amplifier
A regulated power supply includes an oscillating inverter circuit for generating a high frequency square wave signal that drives a saturable reactor which pulse-width modulates the square wave as a function of a control current through a control winding o...
11/24/1981
4236108Variable phase-shifting transformer network
A variable phase-shifting transformer network including at least one pair of multi-phase transformers, wherein the network transformation ratio and phase shift is step wise adjustable as a result of the provision of plural auxiliary windings located on th...
11/25/1980
4163191Magnetic phase shifter control system
A magnetic phase shifter control system comprises a magnetic phase shifter for producing an output signal in accordance with a control command at a predetermined amplification degree, a circuit for suppressing the output signal of the magnetic phase shift...
07/31/1979
 
Sign InRegister
Username  
Password   
forgot password?