Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Reexamination Certificate
2005-12-22
2009-08-11
DeBeradinis, Robert L. (Department: 2836)
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
C439S924100
Reexamination Certificate
active
07573156
ABSTRACT:
According to one aspect of the invention, an uninterruptible power supply includes UPS circuitry, a power source adapted to couple to the UPS circuitry, a first contact, a second contact, and a third contact. The first contact, the second contact, and the third contact are adapted to couple the UPS circuitry to the power source. In a first stage of connection of the UPS circuitry and the power source, the first contact and the second contact are employed in a first circuit. In a second stage of connection of the UPS circuitry and the power source, the first contact and the third contact are employed in a second circuit, and the second contact and the third contact are employed in a third circuit.
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Long Bruce
Paik Namwook
American Power Conversion Corporation
DeBeradinis Robert L.
Lando & Anastasi, LLP.
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