Apparatus for sealing a cable core with waterproofing compound

Details Apparatus for sealing a cable core with waterproofing compound Apparatus for sealing a cable core with waterproofing compound

1975-09-19

1977-05-10

Newton, Dorsey

Coating apparatus

With heat exchange, drying, or non-coating gas or vapor...

Running length work

118 69, 118405, 118DIG18, B05C 315, B05C 1104

Patent

active

040221539

ABSTRACT:
A cable core, the interstitial spaces within which are being filled with waterproofing compound in a semi-fluid state as it passes through a compound-applying or filling chamber into which the compound is introduced under pressure, is advanced through a wiping die in a constricted passageway and into another chamber into which similar compound is pumped. The compound in the second chamber is at a substantially lower temperature than the compound in the filling chamber and exerts pressure radially on the cable core being filled to form a sheath or coating of the lower temperature compound around the filled core to seal the first compound in the core. The core is thereafter passed through a sizing die into a cooling chamber which solidifies the compound in and around the core. The cable core is thus conditioned for the subsequent application of sheathing materials thereto, for example, core wrapping and/or armor sheathing.

REFERENCES:
patent: 1681566 (1928-08-01), Anderegg
patent: 2175099 (1939-10-01), Abbott
patent: 3733216 (1973-05-01), Goldman et al.
patent: 3767454 (1973-10-01), Frank, Jr. et al.
Vacuum-Pressure Impregnation of Waterproofing Cable, (Western Electric Engng., vol. 15, No. 3, July-Oct. 1971), 118-150.

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