Pipeline inspection apparatus

Details Pipeline inspection apparatus Pipeline inspection apparatus

1982-02-10

1983-02-08

Hayes, Monroe H.

Recorders

Record receiver deforming

346 33P, G03B 3700

Patent

active

043726585

ABSTRACT:
Pipeline inspection apparatus is provided including a camera unit and associated illumination means, preferably a strobe flash unit, for recording on photographic film the rectangular images corresponding to generally rectangular internal surface portions of a pipe for detection of defects, a viewing axis of the camera being normal to the axis of the pipe. Weight means are provided for operating in a manner such as to establish a viewing axis in predetermined angular relation to a vertical plane through the axis of a horizontal pipe. In one embodiment, the device is supported by resilient cups for movement through the pipe and the entire device is rotatable under the influence of the weight means. In another embodiment, at least the optical portion of the camera unit is rotatably supported and connected to the weight means. Magnetic flaw detection means are provided for triggering the camera unit.

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patent: 3496457 (1970-02-01), Proctor et al.
patent: 3667359 (1972-06-01), Watts et al.

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