Patent · US Expired

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

US4087748A · kind A · utility

10Cited by

5References

4Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Michel Pigeon · Les Ulis, FR
Robert Saglio · Antony, FR

Key dates

Filing date	Jan 21, 1977
Grant date	May 2, 1978
Priority date	—
Expiry date	Jan 21, 1997

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/9093
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.