Electrical instruments circuits

Details Electrical instruments circuits Electrical instruments circuits

2005-08-16

2005-08-16

Knight, Anthony (Department: 2121)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S500000, C340S551000, C340S641000, C340S642000, C340S643000, C340S644000, C340S657000, C324S076110, C324S522000, C324S526000

Reexamination Certificate

active

06930613

ABSTRACT:
A device representing a simple means of multiplying the functionality of wiring in point to point control circuits such that fault tolerant, fault reporting circuits can be constructed with less wire. The circuit can employ the wiring on a continuous basis by the use of AC and a series arrangement that may combine sensors and command loads on the same single wire loop. A bi-directional current detector with switchable impedance over each polarity can form the device. The detector may be equipped with an electrically isolated man-machine interface that communicates with light to achieve input-output functions. Command functions may be issued by changing the current level within the circuit over each polarity of current flow to series mounted remote loads that are polarized with diodes. The whole circuit can be in triplicate for high reliability and fault tolerance and use a common return wire.

REFERENCES:
patent: 3831495 (1974-08-01), Arnold et al.
patent: 4099032 (1978-07-01), Roge et al.
patent: 5111189 (1992-05-01), Yeh
patent: 5136280 (1992-08-01), Heggli
patent: 5144231 (1992-09-01), Tenenbaum et al.
patent: 5382836 (1995-01-01), Umemura
patent: 5453923 (1995-09-01), Scalais et al.
patent: 5600715 (1997-02-01), Bingel
patent: 6016105 (2000-01-01), Schweitzer, Jr.
patent: 6177875 (2001-01-01), Bolda
patent: 6392612 (2002-05-01), George
patent: 6424136 (2002-07-01), Gardner
patent: 38 44 936 (1989-08-01), None
patent: 2 535 928 (1984-05-01), None
patent: 2-304372 (1990-12-01), None
patent: 6-265585 (1994-09-01), None

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