Inventor
CLIFTON DAVID B
US18 patents
⚠️ This page may combine multiple inventors who share the name “CLIFTON DAVID B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ACTIVE POWER INC
12 patentsUS6192687B1Feb 27, 2001
Uninterruptible power supply utilizing thermal energy source
ACTIVE POWER INC98 citations98
US6512305B1Jan 28, 2003
Method and apparatus having a turbine working in different modes for providing an uninterruptible supply of electric power to a critical load
ACTIVE POWER INC55 citations96
US6255743B1Jul 3, 2001
Method and apparatus for providing an uninterruptible supply of electric power to a critical load
ACTIVE POWER INC60 citations96
US5932935AAug 3, 1999
Energy storage flywheel emergency power source and methods
ACTIVE POWER INC34 citations96
US5905321AMay 18, 1999
Energy storage flywheel apparatus and methods
ACTIVE POWER INC34 citations96
US6463738B1Oct 15, 2002
Method and apparatus for providing a continuous supply of electric power
ACTIVE POWER INC82 citations92
US5969457AOct 19, 1999
Energy storage flywheel apparatus and methods
ACTIVE POWER INC22 citations92
US5929548AJul 27, 1999
High inertia inductor-alternator
ACTIVE POWER INC20 citations92
US5920138AJul 6, 1999
Motor/generator and axial magnetic bearing utilizing common magnetic circuit
ACTIVE POWER INC18 citations92
US6124702ASep 26, 2000
Step switch cycloconverter utilizing multi-tap armature
ACTIVE POWER INC18 citations84
US5955816ASep 21, 1999
Energy storage flywheel apparatus and methods
ACTIVE POWER INC9 citations74
US6777823B1Aug 17, 2004
Integrated continuous power system assemblies having multiple nozzle block segments
ACTIVE POWER INC3 citations59
MAGNETIC BEARING TECH
4 patentsUS5731645AMar 24, 1998
Integrated motor/generator/flywheel utilizing a solid steel rotor
MAGNETIC BEARING TECH93 citations96
US5980193ANov 9, 1999
Magnetically levitated robot and method of increasing levitation force
MAGNETIC BEARING TECH30 citations92
US5525848AJun 11, 1996
Magnetic bearing system including a generator
MAGNETIC BEARING TECH22 citations92
US5471105ANov 28, 1995
Null flux magnetic bearing with cross-connected loop portions
MAGNETIC BEARING TECH29 citations92