Communications: electrical – Selective – Intelligence comparison for controlling
Patent
1976-11-11
1978-05-16
Farley, Richard A.
Communications: electrical
Selective
Intelligence comparison for controlling
307 95, 340248A, H04B 1100
Patent
active
040901700
ABSTRACT:
A method and apparatus for remotely measuring the cathodic protection level on a cathodically protected structure. The method uses a remote apparatus to measure the cathodic protection level and convert it to a related acoustic signal that is transmitted via the structure or surrounding media to a conveniently located receiving location.
REFERENCES:
patent: 3133261 (1964-05-01), Ott
patent: 3860912 (1975-01-01), Romans
patent: 3930220 (1975-12-01), Shawhan
patent: 3953742 (1976-04-01), Anderson et al.
Lincklaen-Arriens Jan
VAN Tilburg Alfred
VAN Waart Teunis L.
Farley Richard A.
Shell Oil Company
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