Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1996-01-22
1998-02-17
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specific condition
340664, 340525, 340500, 345 35, 345 40, 345904, G08B 2100
Patent
active
057195587
ABSTRACT:
A monitoring apparatus for a power plant including a plurality of direct current sources, includes a unit for displaying a predetermined number of symbols representing the direct current sources, and a unit for changing a displayed form of a corresponding symbol when at least one physical quantity of the states of the direct current sources changes.
REFERENCES:
patent: 4189725 (1980-02-01), Rowland
patent: 4311993 (1982-01-01), Strobel
patent: 5241482 (1993-08-01), Iida et al.
patent: 5241657 (1993-08-01), Fine et al.
patent: 5254996 (1993-10-01), Claar et al.
patent: 5553209 (1996-09-01), Johnson et al.
Namba Shigeaki
Takizawa Katsuyoshi
Hitachi , Ltd.
Hofsass Jeffery
Woods Davetta
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