Communications: electrical – Systems – Call station
Patent
1976-02-09
1977-11-15
Queisser, Richard C.
Communications: electrical
Systems
Call station
73 611R, 340171A, 340236, G08B 2100, G08B 108
Patent
active
040588025
ABSTRACT:
An arrangement for detecting the presence of contaminants, such as an oil spill, in a body of water. At a predetermined location in the body of water there is provided at least one detector station means having thereon at least one contaminant detector element. The contaminant detector element has a characteristic that changes for the condition of the presence of a contaminant impinging thereon. For example, the characteristic may be a dimension thereof. Sensing means are provided to detect changes in the characteristic and to generate an information signal responsive to such changes in the characteristic. A transmitter means is provided for transmitting a transmission signal responsive to the information signal when there has been a change in the characteristic. The transmission signal is transmitted to regions remote the detector station means. At such regions remote from the detector station means there is provided a receiving station means which receives the transmission signal and provides an output signal such as a control signal or a visual or audible signal in response thereto.
REFERENCES:
patent: 3427414 (1969-02-01), Sheldahl
patent: 3603952 (1971-09-01), Smith
patent: 3719936 (1973-03-01), Daniels et al.
patent: 3720797 (1973-03-01), Gunn et al.
patent: 3918034 (1975-11-01), Orth
Finkelstein Don B.
Queisser Richard C.
Roskos Joseph W.
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