Metal fusion bonding – Process – With measuring – testing – indicating – inspecting – or...
Patent
1992-04-13
1993-08-24
Heinrich, Samuel M.
Metal fusion bonding
Process
With measuring, testing, indicating, inspecting, or...
228148, 228 9, 228 175, B23K 3100
Patent
active
052381722
ABSTRACT:
The method and the corresponding installation detect sealing faults in metal protective tubes for protecting cables having electrical and/or optical conductors, referred to as "protected components", embedded in a sealing material filling the tube. The method consists in priming said sealing material with a detectable "test" gas either prior to or during injection of said material into said tube in a first station for enclosing the protected components inside the tube, and in causing said tube, filled in this way and optionally heated, to advance continuously past a detector, or inside a detection chamber of a second station containing the detector, either directly after the tube has been filled or at a subsequent stage. Application: land or under-sea cables, in particular for monitoring fluid-tight protective microtubes for protecting optical fibers.
REFERENCES:
patent: 3260786 (1966-07-01), Katzschner
patent: 4759487 (1988-07-01), Karlinski
patent: 4852790 (1989-08-01), Karlinski
patent: 4949894 (1990-08-01), Winter et al.
patent: 5007703 (1991-04-01), Hale et al.
Alcatel Cable
Heinrich Samuel M.
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