Pneumatic drive device for a probe, particularly an eddy current

Details Pneumatic drive device for a probe, particularly an eddy current Pneumatic drive device for a probe, particularly an eddy current

1977-01-21

1978-05-02

Corcoran, Robert J.

Electricity: measuring and testing

Magnetic

Magnetic sensor within material

324238, 2541344, G01R 3312

Patent

active

040877485

ABSTRACT:
A pneumatic drive device for a probe, more particularly for an eddy current measuring probe has a tight flexible tube in which the probe is movably mounted with a cable connected to the probe. A cable pushing and pulling device is connected to one end of the flexible tube and a compressed fluid is introduced into the flexible tube for driving the probe towards and then into the tube to be checked. A tight connection for the other end of the flexible tube to the tube to be checked is provided including a cylinder-piston-restoring spring assembly engaging the drive device beneath a tube to be checked and then disengaging the drive device from the tube which has been checked.

REFERENCES:
patent: 526141 (1894-09-01), Bloomer
patent: 2470338 (1949-05-01), Chilton
patent: 3120947 (1964-02-01), Hamrick
patent: 3718855 (1973-02-01), Rogel et al.
patent: 3927866 (1975-12-01), Linquist

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