Method and apparatus for maintaining uninterruptible power supplies

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8519567
APP PUB NO 20120119580A1
SERIAL NO

13332897

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A system and method of isolating an uninterruptible power supply system is disclosed that comprises bypassing an inverter section of the power supply to couple primary power to a load bus; and, thereafter, isolating the power supply by simultaneously uncoupling the power supply from the load bus and coupling the primary power to the load bus.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LIEBERT CORPORATIONCOLUMBUS, OH167

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zajkowski, Richard J Powell, US 6 20

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (1)
2006/0221,523 Control system, method and product for uninterruptible power supply 9 2005
 
Westinghouse Electric Corp. (2)
5081367 Electric power system with maintenance bypass for uninterruptible power supply using closed transition operation 63 1990
5581133 Combination transfer and bypass isolation switch utilizing drawout protective devices and key interlocks 31 1993
 
Other [Check patent profile for assignment information] (1)
6977446 Multiple inverter power system with regard to generator failure 13 2002
 
AMERICAN POWER CONVERSION CORPORATION (6)
7142950 Methods and apparatus for providing and distributing standby power 36 2004
7274112 Method and apparatus for providing uninterruptible power 33 2004
7456518 Method and apparatus for providing uninterruptible power 23 2004
2006/0043,797 Method and apparatus for providing uninterruptible power 23 2004
7446437 Apparatus and method for preventing an electrical backfeed 19 2005
7418314 Methods and apparatus for providing and distributing standby power 27 2006
 
POWERWARE CORPORATION (2)
6292379 Distributed internal fault bypass in a modular uninterruptible power supply 69 2000
6396170 Method and apparatus for coordinating uninterruptible power supply modules to provide scalable, redundant power 72 2000
 
OMRON CORPORATION (1)
7450406 Power supply arrangement 12 2006
 
LUCENT TECHNOLOGIES INC. (1)
5646459 Integrated maintenance bypass switch and method of operation thereof 41 1995
 
DISCO CORPORATION (1)
2006/0288,826 Method of preparing terminal board 1 2003
 
EATON POWER QUALITY CORPORATION (1)
7265458 Apparatus and methods for coordinated static switch operations for load transfers in uninterruptible power supply systems 22 2005
 
STATORDYNE LLC (1)
6198176 UPS/CPS system 54 1999
 
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION (2)
2003/0184,160 Parallel operation method for an uninterruptible power supply apparatus 8 2002
6960843 Parallel operating system for uninterruptible power units 12 2004
 
GENERAC POWER SYSTEMS, INC. (1)
5914467 Automatic transfer switch with improved positioning mechanism 28 1997
 
LIEBERT CORPORATION (3)
6700351 Modular uninterruptible power supply battery management 60 2001
7453235 Modular uninterruptible power supply 14 2004
7566988 Method and apparatus for monitoring UPS power sources 13 2006
 
GE ZENITH CONTROLS, INC. (1)
5023469 Interlock system for bypass/isolation automatic transfer switch 23 1990
 
Superconductivity, Inc. (1)
5514915 Shunt connected superconducting energy stabilizing system 30 1994
 
Electronic Design (1)
2003/0205,939 Emergency power supply 5 2003
 
SCHNEIDER ELECTRIC IT CORPORATION (1)
7446433 Methods and apparatus for providing uninterruptible power 23 2004
 
S&C ELECTRIC COMPANY (1)
2006/0220,462 Continuous power supply control system and method 9 2006
 
DELTA ELECTRONICS, INC. (2)
7105949 Emergent power supply system and method of achieving input current balance in such system 14 2004
7485988 Uninterruptible power supply 3 2006
 
United Power Corporation (1)
5811960 Battery-less uninterruptable sequel power supply 44 1996
 
ABB INC. (1)
6134124 Universal distributed-resource interface 97 1999
 
EATON CORPORATION (1)
6995327 Four-way interlock system and bypass transfer switch employing the same 19 2005
 
PHOENIXTEC POWER CO., LTD. (3)
2005/0036,253 Modular AC power supply system with fault bypass and method of switching output modes 15 2003
2005/0043,859 Modular uninterruptible power supply system and control method thereof 32 2003
2006/0138,867 Modular AC power supply system with fault bypass and method of switching output modes 11 2006
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
NEC CORPORATION (2)
* 8819470 Switching device, a switching device control method and a switching device control program 0 2011
* 2012/0117,408 SWITCHING DEVICE, A SWITCHING DEVICE CONTROL METHOD AND A SWITCHING DEVICE CONTROL PROGRAM 1 2011
* Cited By Examiner

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