Patent · US Active

Cable including helically twisted conductors

US7667140B2 · kind B2 · utility

3Cited by

12References

7Claims

0Family size

Assignee

Weidmüller Interface GmbH & Co. KG and PH · DE

Inventors

Thomas Hock · Sankt Georgen, DE
Klaus Holterhoff · Olpe, DE
Jens Oesterhaus · Detmold, DE
Stephan Fehling · Lage, DE

Key dates

Filing date	Aug 11, 2007
Grant date	Feb 23, 2010
Priority date	—
Expiry date	Mar 31, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2933
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A cable includes a cable sheath in which are embedded a plurality of insulated conductors at least two of which are helically twisted, the cable being provided with visible markings that indicate where one can electrically engage a selected one of the conductors by an insulation-piercing contact. The cable is formed by arranging a plurality of insulated conductors in a light-transmitting synthetic plastic sheath layer, two or more of the insulated conductors being helically twisted about a longitudinal axis, which cable is optically scanned to determine locations at which contiguous portions of the twisted insulated conductors are superposed orthogonally relative to a reference plane, whereupon markings are formed on the cable sheath layer at locations laterally spaced from the contiguous conductor portions, whereby a selected one of the twisted conductors may be engaged by an insulation-piercing contact.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.