Method for producing lengthwise waterproof cables
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United States of America Patent
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Feb 27, 1996
Grant Date -
N/A
app pub date -
Nov 28, 1994
filing date -
May 26, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method is indicated for producing lengthwise waterproof cables, with a jacket that is formed around the transmitting elements containing the core. The voids in the core and between the core and the jacket are filled with a viscous sealing material, which is pumped from a storage container by a feed pump driven by a speed-controlled electric motor, and supplied to a pressure chamber. The core is passed through the pressure chamber so that the voids in the core are filled with the viscous sealing material. The pressure in the pressure chamber is continuously measured and is kept constant with a regulator. Sealing material leaving the pressure chamber is directed to a catch-container equipped with a level switch. From there it is supplied to the pressure chamber by a feedback pump driven by a speed-controlled electric motor, which is switched on and off by the level switch. Like the speed of the electric motor driving the feed pump, the speed of the electric motor driving the feedback pump is controlled by the regulator.
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