Wireline tool cable head overload apparatus

Wells – Processes – With indicating – testing – measuring or locating

Patent

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Details

73151, 7386238, 7386253, 166 66, 166113, 166385, 267 70, G01L 100, E21B 4712

Patent

active

049287648

ABSTRACT:
A logging tool cable head for supporting the sonde on a cable is disclosed. It has an upper end which affixes to the cable and a lower end affixed to the sonde. The lower end supports an inwardly directed electrical grounding contact. The upper end supports a rotatable, indexed cam having facing upper and lower shoulders sized and located to bear against the contact, so that electrical contact is indicated on overloading. Indexing of the shoulders relative to the contact is achieved. There is also an adjustable centering spring system which locates the contact relative to the two shoulders.

REFERENCES:
patent: 3918301 (1975-11-01), Baer

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