Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1978-03-17
1980-07-29
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
With particular system function
307204, 340653, 340658, 340508, G08B 2900
Patent
active
042153409
ABSTRACT:
Process for the automatic signalling of faults of an automatic static safety module and a module realizing said process which can be used in automatic safety systems which can, for example, be used in nuclear reactors.
The module comprises at least one pair of identical parallel logic circuits each having a first positive continuous supply connection and a second negative supply connection. The circuit output can have one or other of two logic states depending on whether it is connected to the first or second connection. It comprises means for the automatic signalling of a fault in one module component constituted by a.c. voltage sources of different frequencies inserted in the supply connections. It also comprises means for detecting the presence of beats between the a.c. voltages appearing at the outputs of circuits and for indicating cases of non-agreement of the logic states.
REFERENCES:
patent: 2922147 (1960-01-01), Bredesen
patent: 3431557 (1969-03-01), Thomas et al.
patent: 3467956 (1969-09-01), Moreines
patent: 3492589 (1970-01-01), Rotier
patent: 3588857 (1971-06-01), Gessner et al.
Controle Bailey
Swann III Glen R.
LandOfFree
Process for the automatic signalling of faults of a static autom does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the automatic signalling of faults of a static autom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the automatic signalling of faults of a static autom will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-906824