Communications: electrical – Systems – Selsyn type
Reexamination Certificate
2006-02-27
2010-06-22
Nguyen, Tai T (Department: 2612)
Communications: electrical
Systems
Selsyn type
C340S315000, C340S315000, C340S286020, C340S854900, C340S855200, C370S419000, C370S463000, C375S257000, C375S258000, C375S259000
Reexamination Certificate
active
07741958
ABSTRACT:
The present technique relates to the distribution of power and data signals throughout a networked system. For example, three-phase power may be conducted to a device over a set of conductors. One of the conductors, however, may be configured to conduct, in conjunction with a neutral conductor, both one phase of three-phase power as well as data signals in accordance with a predetermined data communications protocol. As an alternate example, the present technique may comprise a set of a first power conductors configured to conduct three-phase power and a secondary power conductor which works in conjunction with an auxiliary conductor to conduct power and data-signals. Additionally, the present technique provides for the maintenance data communications and a level of power upon the interruption of three-phase power to a particular component or device.
REFERENCES:
patent: 4642607 (1987-02-01), Strom et al.
patent: 4903006 (1990-02-01), Boomgaard
patent: 5181026 (1993-01-01), Granville
patent: 5864094 (1999-01-01), Griffin
patent: 7102490 (2006-09-01), Flen et al.
Brandt David D.
Wielebski Wayne H.
Fletcher Yoder LLP
Kuszewski Alexander R.
Miller John M.
Nguyen Tai T
Rockwell Automation Technologies Inc.
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