Pipes and tubular conduits – Flexible – Distinct layers
Patent
1984-12-13
1985-12-24
Shepperd, John W.
Pipes and tubular conduits
Flexible
Distinct layers
174DIG8, H01R 470
Patent
active
045599734
ABSTRACT:
A water impervious heat shrinkable rubber or plastic tube wherein a laminated metal foil layer consisting of a metal foil film having a thickness of 0.01 mm to 0.1 mm and, laminated on each surface thereof, an electrically insulating or semiconducting rubber or plastic sheet extends along the entire or partial length of the tube and over the entire periphery of the tube, the two longitudinal edges of the laminated metal foil layer overlapping in a predetermined width and the laminated metal foil layer being so arranged in the tube that the thickness of the inner tube layer inside the laminated metal foil layer is smaller than the thickness of the outer tube layer outside the laminated metal foil layer.
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patent: 3467761 (1969-09-01), Plummer
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patent: 3898369 (1975-08-01), Clabburn
patent: 4016356 (1977-04-01), McLoughlin
patent: 4151364 (1979-04-01), Ellis
patent: 4341921 (1982-07-01), Simpson
Hane Yoshinari
Kamiya Akihiko
Matsumoto Shigeru
Momma Tetuo
Saito Mitugu
Shepperd John W.
The Furukawa Electric Co. Ltd.
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