Recorders – Combined with external recorder operating means – Well logging
Patent
1977-08-03
1978-08-15
Miller, Jr., George H.
Recorders
Combined with external recorder operating means
Well logging
346 17, 346 65, G01D 900
Patent
active
041076974
ABSTRACT:
An instrument for recordation and time monitoring of pressure, as at a remote wellhead site. The instrument is battery powered, and means for conservation of battery power include powering the device intermittently under control of low power-drain CMOS clock timing circuits. Relatively higher power-drain calibration and display modes are continuously powered only on operator demand. In any operating mode, only those elements necessary to effect the mode are powered, either on an intermittent or continuous basis, as appropriate to realize the mode objective.
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Kintzinger Warren H.
Miller Jr. George H.
Otis Engineering Corporation
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