Protective sheath having a longitudinal strip made of...

Details Protective sheath having a longitudinal strip made of... Protective sheath having a longitudinal strip made of...

2005-09-06

2005-09-06

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

Longitudinally seamed

C138S110000, C138S121000, C138S122000, C138S128000, C138S156000

Reexamination Certificate

active

06938645

ABSTRACT:
An annulated tubular sheath which is split down a longitudinal section thereof. According to the invention, a longitudinal strip of the sleeve is made of a flexible material and is disposed in an angular position of 5-180 degrees in relation to the longitudinal section or is disposed in the region of the sheath in which the longitudinal section is made. Preferably, the flexible material is a thermoplastic elastomer. The invention also relates to a method for producing a sleeve by extruding a plastic material, a longitudinal strip made of a flexible material obtained by co-extruding an elastomer material. A device for carrying out said method comprises an extrusion head provided with an insert for placing the co-extrusion in a stop position on a die in order to block the flow of the extruded plastic material and to enable the flow of elastomer material.

REFERENCES:
patent: 2826523 (1958-03-01), Blaszkowski et al.
patent: 4296157 (1981-10-01), Conti
patent: 6096975 (2000-08-01), Streit
patent: 6315001 (2001-11-01), Anderson
patent: 6488053 (2002-12-01), Tadokoro
patent: 6843276 (2005-01-01), Tadokoro
patent: 2745429 (1997-08-01), None
patent: 2000 115945 (2000-04-01), None

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