Electricity: conductors and insulators – With fluids or vacuum – Conduit or cable joints
Patent
1975-07-25
1977-01-11
Askin, Laramie E.
Electricity: conductors and insulators
With fluids or vacuum
Conduit or cable joints
174 77R, 174 92, 174 93, 277205, 277209, 277211, H02G 1524, H02G 1518
Patent
active
040028186
ABSTRACT:
A protective sleeve for a cable which is to be pressurized internally for leak-detection and cable preservation has a seal near an end thereof through which one or more cables pass into the interior of the sleeve. The seal has a lip formed about the periphery of its inner face, subject to pressure within the sleeve and extending radially and longitudinally from the face to engage the interior surface of the sleeve or sealing compound placed thereon. Pressure within the sleeve forces the lip against the interior surface of the sleeve to form a gas-tight seal regardless of reasonable variations in the internal diameter of the sleeve. One or more lamellations back up the inner, sealing face of the seal and engage each cable passing through the seal. The seal is conveniently made in two pieces for fitting about a continuous cable, and the sections of the seal are joined by tongue and groove arrangements or enlarged sealing surfaces at the joints.
REFERENCES:
patent: 2958721 (1960-11-01), Fiet et al.
patent: 3158379 (1964-11-01), Nava et al.
patent: 3254153 (1966-05-01), Kohler
patent: 3337681 (1967-08-01), Smith
Askin Laramie E.
Siemens Aktiengesellschaft
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