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Load extraction fault detection system
(United States. Patent and Trademark Office, 1996-04-09)
A method and apparatus are provided for detecting an arcing fault on a power line carrying a load current. The apparatus monitors, compiles and analyzes sample parameters taken from successive cycles of the power line load ...
ARC spectral analysis system
(United States. Patent and Trademark Office, 1996-11-26)
A method and apparatus are provided for detecting an arcing fault on a power line carrying a load current. The apparatus monitors and analyzes the load current to obtain frequency components. The analyzed load current is ...
Randomness fault detection system
(United States. Patent and Trademark Office, 1996-01-16)
A method and apparatus are provided for detecting a fault on a power line carrying a line parameter such as a load current. The apparatus monitors and analyzes the load current to obtain an energy value. The energy value ...
Replaceable blade cartridge for a centrifugal type food slicer
(United States. Patent and Trademark Office, 1996-09-17)
The present invention discloses a replaceable blade cartridge and a compatible assembly for holding the cartridge wherein an old blade cartridge is slidably removed from the holding assembly and a new blade is slidably ...
Low noise and narrow linewidth external cavity semiconductor laser for coherent frequency and time domain reflectometry
(United States. Patent and Trademark Office, 1996-04-23)
A semiconductor laser (10) having an external cavity used for coherent frequency and time domain reflectometry is provided. The laser (10) provides a very stable single longitudinal mode characteristic, a very narrow lasing ...
Signal conditioning unit for fiber optic sensors
(United States. Patent and Trademark Office, 1996-09-17)
Apparatus and method (10, 50) for determining the value of a measurand measured by a fiber optic interferometer sensor (24, 72, 110) is provided. The apparatus includes a light source (16, 58, 102) emitting a light having ...
Micro heat pipe panels and method for producing same
(United States. Patent and Trademark Office, 1996-06-18)
Flat or curved micro heat pipe panels are fabricated by arranging essentially parallel filaments in the shape of the desired panel. The configuration of the filaments corresponds to the desired configuration of the tubes ...
Foil bearing
(United States. Patent and Trademark Office, 1996-05-21)
A foil journal bearing comprising a housing having an opening to receive the journal of a shaft, and a plurality of foil supports extending longitudinally through the opening. The foil supports having arcuate inner and ...
Energy analysis fault detection system
(United States. Patent and Trademark Office, 1996-04-30)
A method and apparatus are provided for detecting an arcing fault on a power line carrying a load current. The apparatus monitors and analyzes energy values of the load current flowing through the line. The analyzed energy ...
Active harmonic power filter apparatus and method
(United States. Patent and Trademark Office, 1996-10-22)
Described is an active filter (10) for removing harmonic currents from a neutral wire (24) to reduce the current In in the neutral wire. The filter (10) typically is located away from the source (26) and near the load (28). ...