Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1981-09-29
1984-06-19
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
340500, 340506, 340523, 340677, 57 81, 19300, 28185, 28186, 28188, 66161, 66163, 226 10, 226 11, 226 45, 242 37R, G08B 2300, D01H 1316
Patent
active
044555490
ABSTRACT:
A device for indicating the triggering of a signal transducer in, for example, thread surveillance and monitoring systems. In one device according to the present invention, the signal transducers are, on the one hand, coupled in series by means of lines between the signal transducers and, on the other hand, coupled in parallel by means of one signal line, and each one of the signal transducers is provided with first circuitry which is operative, in response to the occurrence of a signal from the transducer, to generate a control signal which is fed to the immediately subsequent signal transducer in the series coupling, this transducer having, like the remainder, second circuitry for generating, in response to the control signal, a deviation in the transducer signal and a further control signal which is fed to the immediately subsequent signal transducer in the series coupling, whereby there occurs, on the signal line, a transducer signal having a deviation for each one of the signal transducers between the transducer generating the transducer signal and one end of the signal line.
REFERENCES:
patent: 3133276 (1964-05-01), Miller et al.
patent: 4060965 (1977-12-01), Schwartz
patent: 4140919 (1979-02-01), Rydborn
patent: 4267554 (1981-05-01), Loepfe et al.
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