Radiant energy – Invisible radiant energy responsive electric signalling – With means to inspect passive solid objects
Patent
1979-02-23
1981-08-11
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
With means to inspect passive solid objects
250360, G01N 2300
Patent
active
042836280
ABSTRACT:
A self-propelled device movable inside a pipeline for the radiographic detection of flaws in its weld joints comprises a reversible drive motor and a normally deactivated radiation emitter. Logical circuitry aboard the device, including a two-stage memory, enables the selective energization of the drive motor and the activation of the radiation emitter during standstill in response to command pulses of different duration transmitted from an external radiation source through the pipeline wall and intercepted by one of two sensors.
REFERENCES:
patent: 4006359 (1977-02-01), Sullins et al.
Kulekov Stefan I.
Pavlov Alexander S.
DSO "Montaji"--Kontrolno Zavarachno Upravlenie
Howell Janice A.
Ross Karl F.
Willis Davis L.
LandOfFree
Apparatus for the control of self-propelled gamma-flaw detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for the control of self-propelled gamma-flaw detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for the control of self-propelled gamma-flaw detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1027679