Deflection device for measuring the interior of a conduit

Details Deflection device for measuring the interior of a conduit Deflection device for measuring the interior of a conduit

1976-07-26

1978-04-25

Aegerter, Richard E.

Geometrical instruments

Area integrators

Electrical

G01B 512

Patent

active

040855104

ABSTRACT:
An elongated skid mounted measuring device for utilization in conjunction with a closed circuit TV camera for accurately determining variations in the internal diameter of a conduit. The device comprises a spring loaded deflection arm to which is secured a ruler movably positioned adjacent a reference marker to visually indicate relative movement of the deflecting arm in slidable contact with the interior of a conduit. The device is designed primarily for utilization in conjunction with a closed circuit TV camera. The device is suitable for utilization with any camera means for recording the degree of movement of the deflection arm.

REFERENCES:
patent: 2281960 (1942-05-01), Vacquier
patent: 2459499 (1949-01-01), Castel
patent: 2616183 (1952-11-01), Roberts
patent: 2656613 (1953-10-01), Goble
patent: 2855685 (1958-10-01), Barreteau
patent: 3023507 (1962-03-01), Camp
patent: 3058227 (1962-10-01), Camp
patent: 3535803 (1970-10-01), Creek et al.

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