Textiles: spinning – twisting – and twining – Strand structure – Covered or wrapped
Reexamination Certificate
2007-06-12
2007-06-12
Hurley, Shaun R. (Department: 3765)
Textiles: spinning, twisting, and twining
Strand structure
Covered or wrapped
C057S217000
Reexamination Certificate
active
10563988
ABSTRACT:
A steel cord adapted for the reinforcement of elastomers includes: a core steel filament with a diameter dcand coated with a polymer, six intermediate steel filaments with a diameter dismaller than or equal to dc, the intermediate steel filaments being twisted around the core steel filament, ten to eleven outer steel filaments with a diameter do, smaller than or equal to diwherein these outer steel filaments are twisted around the intermediate steel filaments, and the outer steel filaments are preformed in order to allow rubber penetration inside the cord. The core steel filament, the intermediate steel filaments, and the outer steel filaments all have a tensile strength of at least 2600 MPa. The cord has an outer diameter D according to the following formula: D≦dc+2×di+2×do+0.1 mm, wherein all diameters are expressed in millimeters (mm).
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Cauwels Hans
Meersschaut Dirk
Vanneste Stijn
Foley & Lardner LLP
Hurley Shaun R.
NV Bekaert SA
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